[INFO] fetching crate you-can 0.0.14...
[INFO] testing you-can-0.0.14 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate you-can 0.0.14 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate you-can 0.0.14
[INFO] finished tweaking crates.io crate you-can 0.0.14
[INFO] tweaked toml for crates.io crate you-can 0.0.14 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate you-can 0.0.14 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate you-can 0.0.14 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 201b7a35f634499e7a95b41805b1076d0a912d8776baee95111f79dd7a935f84
[INFO] running `Command { std: "docker" "start" "-a" "201b7a35f634499e7a95b41805b1076d0a912d8776baee95111f79dd7a935f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "201b7a35f634499e7a95b41805b1076d0a912d8776baee95111f79dd7a935f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "201b7a35f634499e7a95b41805b1076d0a912d8776baee95111f79dd7a935f84", kill_on_drop: false }`
[INFO] [stdout] 201b7a35f634499e7a95b41805b1076d0a912d8776baee95111f79dd7a935f84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 245ee219edbd0e9183d5efeff87f95293580b9a203500a387271eea4112bebcb
[INFO] running `Command { std: "docker" "start" "-a" "245ee219edbd0e9183d5efeff87f95293580b9a203500a387271eea4112bebcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling you-can-build-macros v0.0.14
[INFO] [stderr]    Compiling you-can v0.0.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.91s
[INFO] running `Command { std: "docker" "inspect" "245ee219edbd0e9183d5efeff87f95293580b9a203500a387271eea4112bebcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245ee219edbd0e9183d5efeff87f95293580b9a203500a387271eea4112bebcb", kill_on_drop: false }`
[INFO] [stdout] 245ee219edbd0e9183d5efeff87f95293580b9a203500a387271eea4112bebcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0217ecd72b4e17943033537646b5cebe476f917677342563a1a955f0590958a7
[INFO] running `Command { std: "docker" "start" "-a" "0217ecd72b4e17943033537646b5cebe476f917677342563a1a955f0590958a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]    Compiling serde_json v1.0.83
[INFO] [stderr]    Compiling anyhow v1.0.61
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling semver v1.0.13
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling compiletest_rs v0.8.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling filetime v0.2.17
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling tester v0.9.0
[INFO] [stderr]    Compiling you-can-build-macros v0.0.14
[INFO] [stderr]    Compiling you-can v0.0.14 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rustfix v0.6.1
[INFO] [stdout] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout]  --> examples/in_fn.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     #![you_can::turn_off_the_borrow_checker]
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrow checker is suppressed for these references.
[INFO] [stdout]   --> examples/in_fn.rs:9:17
[INFO] [stdout]    |
[INFO] [stdout]  9 |     let mut_1 = &mut owned[0];
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout] 10 |     let mut_2 = &mut owned[1];
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout]  --> examples/on_fn.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrow checker is suppressed for these references.
[INFO] [stdout]  --> examples/on_fn.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut_1 = &mut owned[0];
[INFO] [stdout]   |                 ^^^^^^^^^^^^^
[INFO] [stdout] 7 |     let mut_2 = &mut owned[1];
[INFO] [stdout]   |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout]  --> examples/on_mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrow checker is suppressed for these references.
[INFO] [stdout]  --> examples/on_mod.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let mut_1 = &mut owned[0];
[INFO] [stdout]   |                     ^^^^^^^^^^^^^
[INFO] [stdout] 8 |         let mut_2 = &mut owned[1];
[INFO] [stdout]   |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout]  --> examples/on_statement.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout]  --> examples/on_statement.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout]  --> examples/in_mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     #![you_can::turn_off_the_borrow_checker]
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrow checker is suppressed for these references.
[INFO] [stdout]   --> examples/in_mod.rs:10:21
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let mut_1 = &mut owned[0];
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 11 |         let mut_2 = &mut owned[1];
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout]  --> examples/on_block.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the borrow checker is suppressed for these references.
[INFO] [stdout]   --> examples/on_block.rs:9:21
[INFO] [stdout]    |
[INFO] [stdout]  9 |         let mut_1 = &mut owned[0];
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 10 |         let mut_2 = &mut owned[1];
[INFO] [stdout]    |                     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 18.32s
[INFO] running `Command { std: "docker" "inspect" "0217ecd72b4e17943033537646b5cebe476f917677342563a1a955f0590958a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0217ecd72b4e17943033537646b5cebe476f917677342563a1a955f0590958a7", kill_on_drop: false }`
[INFO] [stdout] 0217ecd72b4e17943033537646b5cebe476f917677342563a1a955f0590958a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8ef53eead3898d43aae1012c97f4343b72f538130d9b1018df3c4b284a1d8f0c
[INFO] running `Command { std: "docker" "start" "-a" "8ef53eead3898d43aae1012c97f4343b72f538130d9b1018df3c4b284a1d8f0c", kill_on_drop: false }`
[INFO] [stderr] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stderr]  --> examples/in_fn.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     #![you_can::turn_off_the_borrow_checker]
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the borrow checker is suppressed for these references.
[INFO] [stderr]   --> examples/in_fn.rs:9:17
[INFO] [stderr]    |
[INFO] [stderr]  9 |     let mut_1 = &mut owned[0];
[INFO] [stderr]    |                 ^^^^^^^^^^^^^
[INFO] [stderr] 10 |     let mut_2 = &mut owned[1];
[INFO] [stderr]    |                 ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `you-can` (example "in_fn") generated 2 warnings
[INFO] [stderr] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stderr]  --> examples/on_mod.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[you_can::turn_off_the_borrow_checker]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the borrow checker is suppressed for these references.
[INFO] [stderr]  --> examples/on_mod.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 |         let mut_1 = &mut owned[0];
[INFO] [stderr]   |                     ^^^^^^^^^^^^^
[INFO] [stderr] 8 |         let mut_2 = &mut owned[1];
[INFO] [stderr]   |                     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `you-can` (example "on_mod") generated 2 warnings
[INFO] [stderr] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stderr]  --> examples/on_statement.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stderr]  --> examples/on_statement.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `you-can` (example "on_statement") generated 2 warnings
[INFO] [stderr] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stderr]  --> examples/on_fn.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[you_can::turn_off_the_borrow_checker]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the borrow checker is suppressed for these references.
[INFO] [stderr]  --> examples/on_fn.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut_1 = &mut owned[0];
[INFO] [stderr]   |                 ^^^^^^^^^^^^^
[INFO] [stderr] 7 |     let mut_2 = &mut owned[1];
[INFO] [stderr]   |                 ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `you-can` (example "on_fn") generated 2 warnings
[INFO] [stderr] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stderr]  --> examples/in_mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     #![you_can::turn_off_the_borrow_checker]
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the borrow checker is suppressed for these references.
[INFO] [stderr]   --> examples/in_mod.rs:10:21
[INFO] [stderr]    |
[INFO] [stderr] 10 |         let mut_1 = &mut owned[0];
[INFO] [stderr]    |                     ^^^^^^^^^^^^^
[INFO] [stderr] 11 |         let mut_2 = &mut owned[1];
[INFO] [stderr]    |                     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `you-can` (example "in_mod") generated 2 warnings
[INFO] [stderr] warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stderr]  --> examples/on_block.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the borrow checker is suppressed for these references.
[INFO] [stderr]   --> examples/on_block.rs:9:21
[INFO] [stderr]    |
[INFO] [stderr]  9 |         let mut_1 = &mut owned[0];
[INFO] [stderr]    |                     ^^^^^^^^^^^^^
[INFO] [stderr] 10 |         let mut_2 = &mut owned[1];
[INFO] [stderr]    |                     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `you-can` (example "on_block") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/you_can-151222f76ee6aef7)
[INFO] [stderr]      Running tests/compile_tests.rs (/opt/rustwide/target/debug/deps/compile_tests-73a6e752113ac615)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test [ui] unstable-pass/in_mod.rs ... FAILED
[INFO] [stdout] test [ui] unstable-pass/on_fn_empty.rs ... FAILED
[INFO] [stdout] test [ui] unstable-pass/on_block.rs ... FAILED
[INFO] [stdout] test [ui] unstable-pass/in_fn.rs ... FAILED
[INFO] [stdout] test [ui] unstable-pass/on_mod.rs ... FAILED
[INFO] [stdout] test [compile-fail] unstable-fail/not_on_fn.rs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stdout] test compile_fail ... ok
[INFO] [stdout] test [ui] unstable-pass/on_fn.rs ... FAILED
[INFO] [stdout] test [ui] unstable-pass/on_statement.rs ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     [ui] unstable-pass/in_fn.rs
[INFO] [stdout]     [ui] unstable-pass/in_mod.rs
[INFO] [stdout]     [ui] unstable-pass/on_block.rs
[INFO] [stdout]     [ui] unstable-pass/on_fn.rs
[INFO] [stdout]     [ui] unstable-pass/on_fn_empty.rs
[INFO] [stdout]     [ui] unstable-pass/on_mod.rs
[INFO] [stdout]     [ui] unstable-pass/on_statement.rs
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 7 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stdout] test run_pass ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- run_pass stdout ----
[INFO] [stdout] diff of stderr:
[INFO] [stdout] 
[INFO] [stdout] -warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout] - --> $DIR/in_mod.rs:4:5
[INFO] [stdout] +error[E0464]: multiple candidates for `rlib` dependency `you_can` found
[INFO] [stdout] + --> $DIR/in_mod.rs:4:8
[INFO] [stdout]    |
[INFO] [stdout]  4 |     #![you_can::turn_off_the_borrow_checker]
[INFO] [stdout] -  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] +  |        ^^^^^^^
[INFO] [stdout] +  |
[INFO] [stdout] +  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib
[INFO] [stdout] +  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib
[INFO] [stdout]  
[INFO] [stdout] -warning: the borrow checker is suppressed for these references.
[INFO] [stdout] -  --> $DIR/in_mod.rs:10:21
[INFO] [stdout] +error[E0499]: cannot borrow `owned` as mutable more than once at a time
[INFO] [stdout] +  --> $DIR/in_mod.rs:11:26
[INFO] [stdout]     |
[INFO] [stdout]  10 |         let mut_1 = &mut owned[0];
[INFO] [stdout] -   |                     ^^^^^^^^^^^^^
[INFO] [stdout] +   |                          ----- first mutable borrow occurs here
[INFO] [stdout]  11 |         let mut_2 = &mut owned[1];
[INFO] [stdout] -   |                     ^^^^^^^^^^^^^
[INFO] [stdout] +   |                          ^^^^^ second mutable borrow occurs here
[INFO] [stdout] +...
[INFO] [stdout] +15 |         let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                         ------ first borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices
[INFO] [stdout]  
[INFO] [stdout] -warning: 2 warnings emitted
[INFO] [stdout] +error[E0505]: cannot move out of `owned` because it is borrowed
[INFO] [stdout] +  --> $DIR/in_mod.rs:14:14
[INFO] [stdout] +   |
[INFO] [stdout] + 7 |         let mut owned = vec![1, 32];
[INFO] [stdout] +   |             --------- binding `owned` declared here
[INFO] [stdout] +...
[INFO] [stdout] +10 |         let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                          ----- borrow of `owned` occurs here
[INFO] [stdout] +...
[INFO] [stdout] +14 |         drop(owned);
[INFO] [stdout] +   |              ^^^^^ move out of `owned` occurs here
[INFO] [stdout] +15 |         let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                         ------ borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout] +   |
[INFO] [stdout] +10 |         let mut_1 = &mut owned.clone()[0];
[INFO] [stdout] +   |                               ++++++++
[INFO] [stdout]  
[INFO] [stdout] +error: aborting due to 3 previous errors
[INFO] [stdout] +
[INFO] [stdout] +Some errors have detailed explanations: E0464, E0499, E0505.
[INFO] [stdout] +For more information about an error, try `rustc --explain E0464`.
[INFO] [stdout]  
[INFO] [stdout] 
[INFO] [stdout] The actual stderr differed from the expected stderr.
[INFO] [stdout] Actual stderr saved to /tmp/in_mod.stage-id.stderr
[INFO] [stdout] To update references, rerun the tests and pass the `--bless` flag
[INFO] [stdout] To only update this specific test, also pass `--test-args in_mod.rs`
[INFO] [stdout] 
[INFO] [stdout] error: 1 errors occurred comparing output.
[INFO] [stdout] status: exit status: 1
[INFO] [stdout] command: "rustc" "tests/unstable-pass/in_mod.rs" "-L" "/tmp" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-C" "prefer-dynamic" "-o" "/tmp/in_mod.stage-id" "-A" "unused" "--extern" "you_can" "--extern" "unbounded" "-L" "target/debug/deps" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib" "--edition=2021" "-L" "/tmp/in_mod.stage-id.aux"
[INFO] [stdout] stdout:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] stderr:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] {"$message_type":"diagnostic","message":"multiple candidates for `rlib` dependency `you_can` found","code":{"code":"E0464","explanation":"The compiler found multiple library files with the requested crate name.\n\n```compile_fail\n// aux-build:crateresolve-1.rs\n// aux-build:crateresolve-2.rs\n// aux-build:crateresolve-3.rs\n\nextern crate crateresolve;\n//~^ ERROR multiple candidates for `rlib` dependency `crateresolve` found\n\nfn main() {}\n```\n\nThis error can occur in several different cases -- for example, when using\n`extern crate` or passing `--extern` options without crate paths. It can also be\ncaused by caching issues with the build directory, in which case `cargo clean`\nmay help.\n\nIn the above example, there are three different library files, all of which\ndefine the same crate name. Without providing a full path, there is no way for\nthe compiler to know which crate it should use.\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/in_mod.rs","byte_start":57,"byte_end":64,"line_start":4,"line_end":4,"column_start":8,"column_end":15,"is_primary":true,"text":[{"text":"    #![you_can::turn_off_the_borrow_checker]","highlight_start":8,"highlight_end":15}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"candidate #2: /opt/rustwide/target/debug/libyou_can.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null}],"rendered":"error[E0464]: multiple candidates for `rlib` dependency `you_can` found\n --> tests/unstable-pass/in_mod.rs:4:8\n  |\n4 |     #![you_can::turn_off_the_borrow_checker]\n  |        ^^^^^^^\n  |\n  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib\n  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot borrow `owned` as mutable more than once at a time","code":{"code":"E0499","explanation":"A variable was borrowed as mutable more than once.\n\nErroneous code example:\n\n```compile_fail,E0499\nlet mut i = 0;\nlet mut x = &mut i;\nlet mut a = &mut i;\nx;\n// error: cannot borrow `i` as mutable more than once at a time\n```\n\nPlease note that in Rust, you can either have many immutable references, or one\nmutable reference. For more details you may want to read the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n\nExample:\n\n```\nlet mut i = 0;\nlet mut x = &mut i; // ok!\n\n// or:\nlet mut i = 0;\nlet a = &i; // ok!\nlet b = &i; // still ok!\nlet c = &i; // still ok!\nb;\na;\n```\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/in_mod.rs","byte_start":215,"byte_end":220,"line_start":10,"line_end":10,"column_start":26,"column_end":31,"is_primary":false,"text":[{"text":"        let mut_1 = &mut owned[0];","highlight_start":26,"highlight_end":31}],"label":"first mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_mod.rs","byte_start":250,"byte_end":255,"line_start":11,"line_end":11,"column_start":26,"column_end":31,"is_primary":true,"text":[{"text":"        let mut_2 = &mut owned[1];","highlight_start":26,"highlight_end":31}],"label":"second mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_mod.rs","byte_start":332,"byte_end":338,"line_start":15,"line_end":15,"column_start":25,"column_end":31,"is_primary":false,"text":[{"text":"        let undefined = *mut_1 + *mut_2;","highlight_start":25,"highlight_end":31}],"label":"first borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices","code":null,"level":"help","spans":[],"children":[],"rendered":null}],"rendered":"error[E0499]: cannot borrow `owned` as mutable more than once at a time\n  --> tests/unstable-pass/in_mod.rs:11:26\n   |\n10 |         let mut_1 = &mut owned[0];\n   |                          ----- first mutable borrow occurs here\n11 |         let mut_2 = &mut owned[1];\n   |                          ^^^^^ second mutable borrow occurs here\n...\n15 |         let undefined = *mut_1 + *mut_2;\n   |                         ------ first borrow later used here\n   |\n   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot move out of `owned` because it is borrowed","code":{"code":"E0505","explanation":"A value was moved out while it was still borrowed.\n\nErroneous code example:\n\n```compile_fail,E0505\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let _ref_to_val: &Value = &x;\n    eat(x);\n    borrow(_ref_to_val);\n}\n```\n\nHere, the function `eat` takes ownership of `x`. However,\n`x` cannot be moved because the borrow to `_ref_to_val`\nneeds to last till the function `borrow`.\nTo fix that you can do a few different things:\n\n* Try to avoid moving the variable.\n* Release borrow before move.\n* Implement the `Copy` trait on the type.\n\nExamples:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: &Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    eat(&x); // pass by reference, if it's possible\n    borrow(ref_to_val);\n}\n```\n\nOr:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    borrow(ref_to_val);\n    // ref_to_val is no longer used.\n    eat(x);\n}\n```\n\nOr:\n\n```\n#[derive(Clone, Copy)] // implement Copy trait\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let ref_to_val: &Value = &x;\n    eat(x); // it will be copied here.\n    borrow(ref_to_val);\n}\n```\n\nFor more information on Rust's ownership system, take a look at the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/in_mod.rs","byte_start":300,"byte_end":305,"line_start":14,"line_end":14,"column_start":14,"column_end":19,"is_primary":true,"text":[{"text":"        drop(owned);","highlight_start":14,"highlight_end":19}],"label":"move out of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_mod.rs","byte_start":215,"byte_end":220,"line_start":10,"line_end":10,"column_start":26,"column_end":31,"is_primary":false,"text":[{"text":"        let mut_1 = &mut owned[0];","highlight_start":26,"highlight_end":31}],"label":"borrow of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_mod.rs","byte_start":128,"byte_end":137,"line_start":7,"line_end":7,"column_start":13,"column_end":22,"is_primary":false,"text":[{"text":"        let mut owned = vec![1, 32];","highlight_start":13,"highlight_end":22}],"label":"binding `owned` declared here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_mod.rs","byte_start":332,"byte_end":338,"line_start":15,"line_end":15,"column_start":25,"column_end":31,"is_primary":false,"text":[{"text":"        let undefined = *mut_1 + *mut_2;","highlight_start":25,"highlight_end":31}],"label":"borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"consider cloning the value if the performance cost is acceptable","code":null,"level":"help","spans":[{"file_name":"tests/unstable-pass/in_mod.rs","byte_start":220,"byte_end":220,"line_start":10,"line_end":10,"column_start":31,"column_end":31,"is_primary":true,"text":[{"text":"        let mut_1 = &mut owned[0];","highlight_start":31,"highlight_end":31}],"label":null,"suggested_replacement":".clone()","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0505]: cannot move out of `owned` because it is borrowed\n  --> tests/unstable-pass/in_mod.rs:14:14\n   |\n 7 |         let mut owned = vec![1, 32];\n   |             --------- binding `owned` declared here\n...\n10 |         let mut_1 = &mut owned[0];\n   |                          ----- borrow of `owned` occurs here\n...\n14 |         drop(owned);\n   |              ^^^^^ move out of `owned` occurs here\n15 |         let undefined = *mut_1 + *mut_2;\n   |                         ------ borrow later used here\n   |\nhelp: consider cloning the value if the performance cost is acceptable\n   |\n10 |         let mut_1 = &mut owned.clone()[0];\n   |                               ++++++++\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"aborting due to 3 previous errors","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to 3 previous errors\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"Some errors have detailed explanations: E0464, E0499, E0505.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"Some errors have detailed explanations: E0464, E0499, E0505.\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"For more information about an error, try `rustc --explain E0464`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about an error, try `rustc --explain E0464`.\n"}
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] diff of stderr:
[INFO] [stdout] 
[INFO] [stdout] -warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout] - --> $DIR/on_fn_empty.rs:1:1
[INFO] [stdout] +error[E0464]: multiple candidates for `rlib` dependency `you_can` found
[INFO] [stdout] + --> $DIR/on_fn_empty.rs:1:3
[INFO] [stdout]    |
[INFO] [stdout]  1 | #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout] -  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] +  |   ^^^^^^^
[INFO] [stdout] +  |
[INFO] [stdout] +  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib
[INFO] [stdout] +  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib
[INFO] [stdout]  
[INFO] [stdout] -warning: 1 warning emitted
[INFO] [stdout] +error: aborting due to 1 previous error
[INFO] [stdout]  
[INFO] [stdout] +For more information about this error, try `rustc --explain E0464`.
[INFO] [stdout]  
[INFO] [stdout] 
[INFO] [stdout] The actual stderr differed from the expected stderr.
[INFO] [stdout] Actual stderr saved to /tmp/on_fn_empty.stage-id.stderr
[INFO] [stdout] To update references, rerun the tests and pass the `--bless` flag
[INFO] [stdout] To only update this specific test, also pass `--test-args on_fn_empty.rs`
[INFO] [stdout] 
[INFO] [stdout] error: 1 errors occurred comparing output.
[INFO] [stdout] status: exit status: 1
[INFO] [stdout] command: "rustc" "tests/unstable-pass/on_fn_empty.rs" "-L" "/tmp" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-C" "prefer-dynamic" "-o" "/tmp/on_fn_empty.stage-id" "-A" "unused" "--extern" "you_can" "--extern" "unbounded" "-L" "target/debug/deps" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib" "--edition=2021" "-L" "/tmp/on_fn_empty.stage-id.aux"
[INFO] [stdout] stdout:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] stderr:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] {"$message_type":"diagnostic","message":"multiple candidates for `rlib` dependency `you_can` found","code":{"code":"E0464","explanation":"The compiler found multiple library files with the requested crate name.\n\n```compile_fail\n// aux-build:crateresolve-1.rs\n// aux-build:crateresolve-2.rs\n// aux-build:crateresolve-3.rs\n\nextern crate crateresolve;\n//~^ ERROR multiple candidates for `rlib` dependency `crateresolve` found\n\nfn main() {}\n```\n\nThis error can occur in several different cases -- for example, when using\n`extern crate` or passing `--extern` options without crate paths. It can also be\ncaused by caching issues with the build directory, in which case `cargo clean`\nmay help.\n\nIn the above example, there are three different library files, all of which\ndefine the same crate name. Without providing a full path, there is no way for\nthe compiler to know which crate it should use.\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_fn_empty.rs","byte_start":2,"byte_end":9,"line_start":1,"line_end":1,"column_start":3,"column_end":10,"is_primary":true,"text":[{"text":"#[you_can::turn_off_the_borrow_checker]","highlight_start":3,"highlight_end":10}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"candidate #2: /opt/rustwide/target/debug/libyou_can.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null}],"rendered":"error[E0464]: multiple candidates for `rlib` dependency `you_can` found\n --> tests/unstable-pass/on_fn_empty.rs:1:3\n  |\n1 | #[you_can::turn_off_the_borrow_checker]\n  |   ^^^^^^^\n  |\n  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib\n  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"aborting due to 1 previous error","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to 1 previous error\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"For more information about this error, try `rustc --explain E0464`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0464`.\n"}
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] diff of stderr:
[INFO] [stdout] 
[INFO] [stdout] -warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout] - --> $DIR/on_block.rs:6:5
[INFO] [stdout] +error[E0464]: multiple candidates for `rlib` dependency `you_can` found
[INFO] [stdout] + --> $DIR/on_block.rs:6:7
[INFO] [stdout]    |
[INFO] [stdout]  6 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout] -  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] +  |       ^^^^^^^
[INFO] [stdout] +  |
[INFO] [stdout] +  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib
[INFO] [stdout] +  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib
[INFO] [stdout]  
[INFO] [stdout] -warning: the borrow checker is suppressed for these references.
[INFO] [stdout] -  --> $DIR/on_block.rs:9:21
[INFO] [stdout] +error[E0499]: cannot borrow `owned` as mutable more than once at a time
[INFO] [stdout] +  --> $DIR/on_block.rs:10:26
[INFO] [stdout]     |
[INFO] [stdout] -9  |         let mut_1 = &mut owned[0];
[INFO] [stdout] -   |                     ^^^^^^^^^^^^^
[INFO] [stdout] + 9 |         let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                          ----- first mutable borrow occurs here
[INFO] [stdout]  10 |         let mut_2 = &mut owned[1];
[INFO] [stdout] -   |                     ^^^^^^^^^^^^^
[INFO] [stdout] +   |                          ^^^^^ second mutable borrow occurs here
[INFO] [stdout] +...
[INFO] [stdout] +14 |         let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                         ------ first borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices
[INFO] [stdout]  
[INFO] [stdout] -warning: 2 warnings emitted
[INFO] [stdout] +error[E0505]: cannot move out of `owned` because it is borrowed
[INFO] [stdout] +  --> $DIR/on_block.rs:13:14
[INFO] [stdout] +   |
[INFO] [stdout] + 4 |     let mut owned = vec![1, 32];
[INFO] [stdout] +   |         --------- binding `owned` declared here
[INFO] [stdout] +...
[INFO] [stdout] + 9 |         let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                          ----- borrow of `owned` occurs here
[INFO] [stdout] +...
[INFO] [stdout] +13 |         drop(owned);
[INFO] [stdout] +   |              ^^^^^ move out of `owned` occurs here
[INFO] [stdout] +14 |         let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                         ------ borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout] +   |
[INFO] [stdout] + 9 |         let mut_1 = &mut owned.clone()[0];
[INFO] [stdout] +   |                               ++++++++
[INFO] [stdout]  
[INFO] [stdout] +error: aborting due to 3 previous errors
[INFO] [stdout] +
[INFO] [stdout] +Some errors have detailed explanations: E0464, E0499, E0505.
[INFO] [stdout] +For more information about an error, try `rustc --explain E0464`.
[INFO] [stdout]  
[INFO] [stdout] 
[INFO] [stdout] The actual stderr differed from the expected stderr.
[INFO] [stdout] Actual stderr saved to /tmp/on_block.stage-id.stderr
[INFO] [stdout] To update references, rerun the tests and pass the `--bless` flag
[INFO] [stdout] To only update this specific test, also pass `--test-args on_block.rs`
[INFO] [stdout] 
[INFO] [stdout] error: 1 errors occurred comparing output.
[INFO] [stdout] status: exit status: 1
[INFO] [stdout] command: "rustc" "tests/unstable-pass/on_block.rs" "-L" "/tmp" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-C" "prefer-dynamic" "-o" "/tmp/on_block.stage-id" "-A" "unused" "--extern" "you_can" "--extern" "unbounded" "-L" "target/debug/deps" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib" "--edition=2021" "-L" "/tmp/on_block.stage-id.aux"
[INFO] [stdout] stdout:
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[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] stderr:
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[INFO] [stdout] {"$message_type":"diagnostic","message":"multiple candidates for `rlib` dependency `you_can` found","code":{"code":"E0464","explanation":"The compiler found multiple library files with the requested crate name.\n\n```compile_fail\n// aux-build:crateresolve-1.rs\n// aux-build:crateresolve-2.rs\n// aux-build:crateresolve-3.rs\n\nextern crate crateresolve;\n//~^ ERROR multiple candidates for `rlib` dependency `crateresolve` found\n\nfn main() {}\n```\n\nThis error can occur in several different cases -- for example, when using\n`extern crate` or passing `--extern` options without crate paths. It can also be\ncaused by caching issues with the build directory, in which case `cargo clean`\nmay help.\n\nIn the above example, there are three different library files, all of which\ndefine the same crate name. Without providing a full path, there is no way for\nthe compiler to know which crate it should use.\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_block.rs","byte_start":111,"byte_end":118,"line_start":6,"line_end":6,"column_start":7,"column_end":14,"is_primary":true,"text":[{"text":"    #[you_can::turn_off_the_borrow_checker]","highlight_start":7,"highlight_end":14}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"candidate #2: /opt/rustwide/target/debug/libyou_can.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null}],"rendered":"error[E0464]: multiple candidates for `rlib` dependency `you_can` found\n --> tests/unstable-pass/on_block.rs:6:7\n  |\n6 |     #[you_can::turn_off_the_borrow_checker]\n  |       ^^^^^^^\n  |\n  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib\n  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot borrow `owned` as mutable more than once at a time","code":{"code":"E0499","explanation":"A variable was borrowed as mutable more than once.\n\nErroneous code example:\n\n```compile_fail,E0499\nlet mut i = 0;\nlet mut x = &mut i;\nlet mut a = &mut i;\nx;\n// error: cannot borrow `i` as mutable more than once at a time\n```\n\nPlease note that in Rust, you can either have many immutable references, or one\nmutable reference. For more details you may want to read the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n\nExample:\n\n```\nlet mut i = 0;\nlet mut x = &mut i; // ok!\n\n// or:\nlet mut i = 0;\nlet a = &i; // ok!\nlet b = &i; // still ok!\nlet c = &i; // still ok!\nb;\na;\n```\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_block.rs","byte_start":216,"byte_end":221,"line_start":9,"line_end":9,"column_start":26,"column_end":31,"is_primary":false,"text":[{"text":"        let mut_1 = &mut owned[0];","highlight_start":26,"highlight_end":31}],"label":"first mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_block.rs","byte_start":251,"byte_end":256,"line_start":10,"line_end":10,"column_start":26,"column_end":31,"is_primary":true,"text":[{"text":"        let mut_2 = &mut owned[1];","highlight_start":26,"highlight_end":31}],"label":"second mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_block.rs","byte_start":333,"byte_end":339,"line_start":14,"line_end":14,"column_start":25,"column_end":31,"is_primary":false,"text":[{"text":"        let undefined = *mut_1 + *mut_2;","highlight_start":25,"highlight_end":31}],"label":"first borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices","code":null,"level":"help","spans":[],"children":[],"rendered":null}],"rendered":"error[E0499]: cannot borrow `owned` as mutable more than once at a time\n  --> tests/unstable-pass/on_block.rs:10:26\n   |\n 9 |         let mut_1 = &mut owned[0];\n   |                          ----- first mutable borrow occurs here\n10 |         let mut_2 = &mut owned[1];\n   |                          ^^^^^ second mutable borrow occurs here\n...\n14 |         let undefined = *mut_1 + *mut_2;\n   |                         ------ first borrow later used here\n   |\n   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot move out of `owned` because it is borrowed","code":{"code":"E0505","explanation":"A value was moved out while it was still borrowed.\n\nErroneous code example:\n\n```compile_fail,E0505\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let _ref_to_val: &Value = &x;\n    eat(x);\n    borrow(_ref_to_val);\n}\n```\n\nHere, the function `eat` takes ownership of `x`. However,\n`x` cannot be moved because the borrow to `_ref_to_val`\nneeds to last till the function `borrow`.\nTo fix that you can do a few different things:\n\n* Try to avoid moving the variable.\n* Release borrow before move.\n* Implement the `Copy` trait on the type.\n\nExamples:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: &Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    eat(&x); // pass by reference, if it's possible\n    borrow(ref_to_val);\n}\n```\n\nOr:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    borrow(ref_to_val);\n    // ref_to_val is no longer used.\n    eat(x);\n}\n```\n\nOr:\n\n```\n#[derive(Clone, Copy)] // implement Copy trait\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let ref_to_val: &Value = &x;\n    eat(x); // it will be copied here.\n    borrow(ref_to_val);\n}\n```\n\nFor more information on Rust's ownership system, take a look at the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_block.rs","byte_start":301,"byte_end":306,"line_start":13,"line_end":13,"column_start":14,"column_end":19,"is_primary":true,"text":[{"text":"        drop(owned);","highlight_start":14,"highlight_end":19}],"label":"move out of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_block.rs","byte_start":216,"byte_end":221,"line_start":9,"line_end":9,"column_start":26,"column_end":31,"is_primary":false,"text":[{"text":"        let mut_1 = &mut owned[0];","highlight_start":26,"highlight_end":31}],"label":"borrow of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_block.rs","byte_start":79,"byte_end":88,"line_start":4,"line_end":4,"column_start":9,"column_end":18,"is_primary":false,"text":[{"text":"    let mut owned = vec![1, 32];","highlight_start":9,"highlight_end":18}],"label":"binding `owned` declared here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_block.rs","byte_start":333,"byte_end":339,"line_start":14,"line_end":14,"column_start":25,"column_end":31,"is_primary":false,"text":[{"text":"        let undefined = *mut_1 + *mut_2;","highlight_start":25,"highlight_end":31}],"label":"borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"consider cloning the value if the performance cost is acceptable","code":null,"level":"help","spans":[{"file_name":"tests/unstable-pass/on_block.rs","byte_start":221,"byte_end":221,"line_start":9,"line_end":9,"column_start":31,"column_end":31,"is_primary":true,"text":[{"text":"        let mut_1 = &mut owned[0];","highlight_start":31,"highlight_end":31}],"label":null,"suggested_replacement":".clone()","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0505]: cannot move out of `owned` because it is borrowed\n  --> tests/unstable-pass/on_block.rs:13:14\n   |\n 4 |     let mut owned = vec![1, 32];\n   |         --------- binding `owned` declared here\n...\n 9 |         let mut_1 = &mut owned[0];\n   |                          ----- borrow of `owned` occurs here\n...\n13 |         drop(owned);\n   |              ^^^^^ move out of `owned` occurs here\n14 |         let undefined = *mut_1 + *mut_2;\n   |                         ------ borrow later used here\n   |\nhelp: consider cloning the value if the performance cost is acceptable\n   |\n 9 |         let mut_1 = &mut owned.clone()[0];\n   |                               ++++++++\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"aborting due to 3 previous errors","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to 3 previous errors\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"Some errors have detailed explanations: E0464, E0499, E0505.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"Some errors have detailed explanations: E0464, E0499, E0505.\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"For more information about an error, try `rustc --explain E0464`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about an error, try `rustc --explain E0464`.\n"}
[INFO] [stdout] 
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[INFO] [stdout] 
[INFO] [stdout] diff of stderr:
[INFO] [stdout] 
[INFO] [stdout] -warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout] - --> $DIR/in_fn.rs:4:5
[INFO] [stdout] +error[E0464]: multiple candidates for `rlib` dependency `you_can` found
[INFO] [stdout] + --> $DIR/in_fn.rs:4:8
[INFO] [stdout]    |
[INFO] [stdout]  4 |     #![you_can::turn_off_the_borrow_checker]
[INFO] [stdout] -  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] +  |        ^^^^^^^
[INFO] [stdout] +  |
[INFO] [stdout] +  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib
[INFO] [stdout] +  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib
[INFO] [stdout]  
[INFO] [stdout] -warning: the borrow checker is suppressed for these references.
[INFO] [stdout] -  --> $DIR/in_fn.rs:9:17
[INFO] [stdout] +error[E0499]: cannot borrow `owned` as mutable more than once at a time
[INFO] [stdout] +  --> $DIR/in_fn.rs:10:22
[INFO] [stdout]     |
[INFO] [stdout] -9  |     let mut_1 = &mut owned[0];
[INFO] [stdout] -   |                 ^^^^^^^^^^^^^
[INFO] [stdout] + 9 |     let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                      ----- first mutable borrow occurs here
[INFO] [stdout]  10 |     let mut_2 = &mut owned[1];
[INFO] [stdout] -   |                 ^^^^^^^^^^^^^
[INFO] [stdout] +   |                      ^^^^^ second mutable borrow occurs here
[INFO] [stdout] +...
[INFO] [stdout] +14 |     let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                     ------ first borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices
[INFO] [stdout]  
[INFO] [stdout] -warning: 2 warnings emitted
[INFO] [stdout] +error[E0505]: cannot move out of `owned` because it is borrowed
[INFO] [stdout] +  --> $DIR/in_fn.rs:13:10
[INFO] [stdout] +   |
[INFO] [stdout] + 6 |     let mut owned = vec![1, 32];
[INFO] [stdout] +   |         --------- binding `owned` declared here
[INFO] [stdout] +...
[INFO] [stdout] + 9 |     let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                      ----- borrow of `owned` occurs here
[INFO] [stdout] +...
[INFO] [stdout] +13 |     drop(owned);
[INFO] [stdout] +   |          ^^^^^ move out of `owned` occurs here
[INFO] [stdout] +14 |     let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                     ------ borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout] +   |
[INFO] [stdout] + 9 |     let mut_1 = &mut owned.clone()[0];
[INFO] [stdout] +   |                           ++++++++
[INFO] [stdout]  
[INFO] [stdout] +error: aborting due to 3 previous errors
[INFO] [stdout] +
[INFO] [stdout] +Some errors have detailed explanations: E0464, E0499, E0505.
[INFO] [stdout] +For more information about an error, try `rustc --explain E0464`.
[INFO] [stdout]  
[INFO] [stdout] 
[INFO] [stdout] The actual stderr differed from the expected stderr.
[INFO] [stdout] Actual stderr saved to /tmp/in_fn.stage-id.stderr
[INFO] [stdout] To update references, rerun the tests and pass the `--bless` flag
[INFO] [stdout] To only update this specific test, also pass `--test-args in_fn.rs`
[INFO] [stdout] 
[INFO] [stdout] error: 1 errors occurred comparing output.
[INFO] [stdout] status: exit status: 1
[INFO] [stdout] command: "rustc" "tests/unstable-pass/in_fn.rs" "-L" "/tmp" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-C" "prefer-dynamic" "-o" "/tmp/in_fn.stage-id" "-A" "unused" "--extern" "you_can" "--extern" "unbounded" "-L" "target/debug/deps" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib" "--edition=2021" "-L" "/tmp/in_fn.stage-id.aux"
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[INFO] [stdout] stderr:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] {"$message_type":"diagnostic","message":"multiple candidates for `rlib` dependency `you_can` found","code":{"code":"E0464","explanation":"The compiler found multiple library files with the requested crate name.\n\n```compile_fail\n// aux-build:crateresolve-1.rs\n// aux-build:crateresolve-2.rs\n// aux-build:crateresolve-3.rs\n\nextern crate crateresolve;\n//~^ ERROR multiple candidates for `rlib` dependency `crateresolve` found\n\nfn main() {}\n```\n\nThis error can occur in several different cases -- for example, when using\n`extern crate` or passing `--extern` options without crate paths. It can also be\ncaused by caching issues with the build directory, in which case `cargo clean`\nmay help.\n\nIn the above example, there are three different library files, all of which\ndefine the same crate name. Without providing a full path, there is no way for\nthe compiler to know which crate it should use.\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/in_fn.rs","byte_start":61,"byte_end":68,"line_start":4,"line_end":4,"column_start":8,"column_end":15,"is_primary":true,"text":[{"text":"    #![you_can::turn_off_the_borrow_checker]","highlight_start":8,"highlight_end":15}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"candidate #2: /opt/rustwide/target/debug/libyou_can.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null}],"rendered":"error[E0464]: multiple candidates for `rlib` dependency `you_can` found\n --> tests/unstable-pass/in_fn.rs:4:8\n  |\n4 |     #![you_can::turn_off_the_borrow_checker]\n  |        ^^^^^^^\n  |\n  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib\n  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot borrow `owned` as mutable more than once at a time","code":{"code":"E0499","explanation":"A variable was borrowed as mutable more than once.\n\nErroneous code example:\n\n```compile_fail,E0499\nlet mut i = 0;\nlet mut x = &mut i;\nlet mut a = &mut i;\nx;\n// error: cannot borrow `i` as mutable more than once at a time\n```\n\nPlease note that in Rust, you can either have many immutable references, or one\nmutable reference. For more details you may want to read the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n\nExample:\n\n```\nlet mut i = 0;\nlet mut x = &mut i; // ok!\n\n// or:\nlet mut i = 0;\nlet a = &i; // ok!\nlet b = &i; // still ok!\nlet c = &i; // still ok!\nb;\na;\n```\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/in_fn.rs","byte_start":187,"byte_end":192,"line_start":9,"line_end":9,"column_start":22,"column_end":27,"is_primary":false,"text":[{"text":"    let mut_1 = &mut owned[0];","highlight_start":22,"highlight_end":27}],"label":"first mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_fn.rs","byte_start":218,"byte_end":223,"line_start":10,"line_end":10,"column_start":22,"column_end":27,"is_primary":true,"text":[{"text":"    let mut_2 = &mut owned[1];","highlight_start":22,"highlight_end":27}],"label":"second mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_fn.rs","byte_start":288,"byte_end":294,"line_start":14,"line_end":14,"column_start":21,"column_end":27,"is_primary":false,"text":[{"text":"    let undefined = *mut_1 + *mut_2;","highlight_start":21,"highlight_end":27}],"label":"first borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices","code":null,"level":"help","spans":[],"children":[],"rendered":null}],"rendered":"error[E0499]: cannot borrow `owned` as mutable more than once at a time\n  --> tests/unstable-pass/in_fn.rs:10:22\n   |\n 9 |     let mut_1 = &mut owned[0];\n   |                      ----- first mutable borrow occurs here\n10 |     let mut_2 = &mut owned[1];\n   |                      ^^^^^ second mutable borrow occurs here\n...\n14 |     let undefined = *mut_1 + *mut_2;\n   |                     ------ first borrow later used here\n   |\n   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot move out of `owned` because it is borrowed","code":{"code":"E0505","explanation":"A value was moved out while it was still borrowed.\n\nErroneous code example:\n\n```compile_fail,E0505\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let _ref_to_val: &Value = &x;\n    eat(x);\n    borrow(_ref_to_val);\n}\n```\n\nHere, the function `eat` takes ownership of `x`. However,\n`x` cannot be moved because the borrow to `_ref_to_val`\nneeds to last till the function `borrow`.\nTo fix that you can do a few different things:\n\n* Try to avoid moving the variable.\n* Release borrow before move.\n* Implement the `Copy` trait on the type.\n\nExamples:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: &Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    eat(&x); // pass by reference, if it's possible\n    borrow(ref_to_val);\n}\n```\n\nOr:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    borrow(ref_to_val);\n    // ref_to_val is no longer used.\n    eat(x);\n}\n```\n\nOr:\n\n```\n#[derive(Clone, Copy)] // implement Copy trait\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let ref_to_val: &Value = &x;\n    eat(x); // it will be copied here.\n    borrow(ref_to_val);\n}\n```\n\nFor more information on Rust's ownership system, take a look at the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/in_fn.rs","byte_start":260,"byte_end":265,"line_start":13,"line_end":13,"column_start":10,"column_end":15,"is_primary":true,"text":[{"text":"    drop(owned);","highlight_start":10,"highlight_end":15}],"label":"move out of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_fn.rs","byte_start":187,"byte_end":192,"line_start":9,"line_end":9,"column_start":22,"column_end":27,"is_primary":false,"text":[{"text":"    let mut_1 = &mut owned[0];","highlight_start":22,"highlight_end":27}],"label":"borrow of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_fn.rs","byte_start":108,"byte_end":117,"line_start":6,"line_end":6,"column_start":9,"column_end":18,"is_primary":false,"text":[{"text":"    let mut owned = vec![1, 32];","highlight_start":9,"highlight_end":18}],"label":"binding `owned` declared here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/in_fn.rs","byte_start":288,"byte_end":294,"line_start":14,"line_end":14,"column_start":21,"column_end":27,"is_primary":false,"text":[{"text":"    let undefined = *mut_1 + *mut_2;","highlight_start":21,"highlight_end":27}],"label":"borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"consider cloning the value if the performance cost is acceptable","code":null,"level":"help","spans":[{"file_name":"tests/unstable-pass/in_fn.rs","byte_start":192,"byte_end":192,"line_start":9,"line_end":9,"column_start":27,"column_end":27,"is_primary":true,"text":[{"text":"    let mut_1 = &mut owned[0];","highlight_start":27,"highlight_end":27}],"label":null,"suggested_replacement":".clone()","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0505]: cannot move out of `owned` because it is borrowed\n  --> tests/unstable-pass/in_fn.rs:13:10\n   |\n 6 |     let mut owned = vec![1, 32];\n   |         --------- binding `owned` declared here\n...\n 9 |     let mut_1 = &mut owned[0];\n   |                      ----- borrow of `owned` occurs here\n...\n13 |     drop(owned);\n   |          ^^^^^ move out of `owned` occurs here\n14 |     let undefined = *mut_1 + *mut_2;\n   |                     ------ borrow later used here\n   |\nhelp: consider cloning the value if the performance cost is acceptable\n   |\n 9 |     let mut_1 = &mut owned.clone()[0];\n   |                           ++++++++\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"aborting due to 3 previous errors","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to 3 previous errors\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"Some errors have detailed explanations: E0464, E0499, E0505.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"Some errors have detailed explanations: E0464, E0499, E0505.\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"For more information about an error, try `rustc --explain E0464`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about an error, try `rustc --explain E0464`.\n"}
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] diff of stderr:
[INFO] [stdout] 
[INFO] [stdout] -warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout] - --> $DIR/on_mod.rs:1:1
[INFO] [stdout] +error[E0464]: multiple candidates for `rlib` dependency `you_can` found
[INFO] [stdout] + --> $DIR/on_mod.rs:1:3
[INFO] [stdout]    |
[INFO] [stdout]  1 | #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout] -  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] -
[INFO] [stdout] -warning: the borrow checker is suppressed for these references.
[INFO] [stdout] - --> $DIR/on_mod.rs:7:21
[INFO] [stdout] +  |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] -7 |         let mut_1 = &mut owned[0];
[INFO] [stdout] -  |                     ^^^^^^^^^^^^^
[INFO] [stdout] -8 |         let mut_2 = &mut owned[1];
[INFO] [stdout] -  |                     ^^^^^^^^^^^^^
[INFO] [stdout] +  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib
[INFO] [stdout] +  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib
[INFO] [stdout]  
[INFO] [stdout] -warning: 2 warnings emitted
[INFO] [stdout] +error[E0499]: cannot borrow `owned` as mutable more than once at a time
[INFO] [stdout] +  --> $DIR/on_mod.rs:8:26
[INFO] [stdout] +   |
[INFO] [stdout] + 7 |         let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                          ----- first mutable borrow occurs here
[INFO] [stdout] + 8 |         let mut_2 = &mut owned[1];
[INFO] [stdout] +   |                          ^^^^^ second mutable borrow occurs here
[INFO] [stdout] +...
[INFO] [stdout] +12 |         let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                         ------ first borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices
[INFO] [stdout]  
[INFO] [stdout] +error[E0505]: cannot move out of `owned` because it is borrowed
[INFO] [stdout] +  --> $DIR/on_mod.rs:11:14
[INFO] [stdout] +   |
[INFO] [stdout] + 4 |         let mut owned = vec![1, 32];
[INFO] [stdout] +   |             --------- binding `owned` declared here
[INFO] [stdout] +...
[INFO] [stdout] + 7 |         let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                          ----- borrow of `owned` occurs here
[INFO] [stdout] +...
[INFO] [stdout] +11 |         drop(owned);
[INFO] [stdout] +   |              ^^^^^ move out of `owned` occurs here
[INFO] [stdout] +12 |         let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                         ------ borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout] +   |
[INFO] [stdout] + 7 |         let mut_1 = &mut owned.clone()[0];
[INFO] [stdout] +   |                               ++++++++
[INFO] [stdout] +
[INFO] [stdout] +error: aborting due to 3 previous errors
[INFO] [stdout] +
[INFO] [stdout] +Some errors have detailed explanations: E0464, E0499, E0505.
[INFO] [stdout] +For more information about an error, try `rustc --explain E0464`.
[INFO] [stdout]  
[INFO] [stdout] 
[INFO] [stdout] The actual stderr differed from the expected stderr.
[INFO] [stdout] Actual stderr saved to /tmp/on_mod.stage-id.stderr
[INFO] [stdout] To update references, rerun the tests and pass the `--bless` flag
[INFO] [stdout] To only update this specific test, also pass `--test-args on_mod.rs`
[INFO] [stdout] 
[INFO] [stdout] error: 1 errors occurred comparing output.
[INFO] [stdout] status: exit status: 1
[INFO] [stdout] command: "rustc" "tests/unstable-pass/on_mod.rs" "-L" "/tmp" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-C" "prefer-dynamic" "-o" "/tmp/on_mod.stage-id" "-A" "unused" "--extern" "you_can" "--extern" "unbounded" "-L" "target/debug/deps" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib" "--edition=2021" "-L" "/tmp/on_mod.stage-id.aux"
[INFO] [stdout] stdout:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] stderr:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] {"$message_type":"diagnostic","message":"multiple candidates for `rlib` dependency `you_can` found","code":{"code":"E0464","explanation":"The compiler found multiple library files with the requested crate name.\n\n```compile_fail\n// aux-build:crateresolve-1.rs\n// aux-build:crateresolve-2.rs\n// aux-build:crateresolve-3.rs\n\nextern crate crateresolve;\n//~^ ERROR multiple candidates for `rlib` dependency `crateresolve` found\n\nfn main() {}\n```\n\nThis error can occur in several different cases -- for example, when using\n`extern crate` or passing `--extern` options without crate paths. It can also be\ncaused by caching issues with the build directory, in which case `cargo clean`\nmay help.\n\nIn the above example, there are three different library files, all of which\ndefine the same crate name. Without providing a full path, there is no way for\nthe compiler to know which crate it should use.\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_mod.rs","byte_start":2,"byte_end":9,"line_start":1,"line_end":1,"column_start":3,"column_end":10,"is_primary":true,"text":[{"text":"#[you_can::turn_off_the_borrow_checker]","highlight_start":3,"highlight_end":10}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"candidate #2: /opt/rustwide/target/debug/libyou_can.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null}],"rendered":"error[E0464]: multiple candidates for `rlib` dependency `you_can` found\n --> tests/unstable-pass/on_mod.rs:1:3\n  |\n1 | #[you_can::turn_off_the_borrow_checker]\n  |   ^^^^^^^\n  |\n  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib\n  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot borrow `owned` as mutable more than once at a time","code":{"code":"E0499","explanation":"A variable was borrowed as mutable more than once.\n\nErroneous code example:\n\n```compile_fail,E0499\nlet mut i = 0;\nlet mut x = &mut i;\nlet mut a = &mut i;\nx;\n// error: cannot borrow `i` as mutable more than once at a time\n```\n\nPlease note that in Rust, you can either have many immutable references, or one\nmutable reference. For more details you may want to read the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n\nExample:\n\n```\nlet mut i = 0;\nlet mut x = &mut i; // ok!\n\n// or:\nlet mut i = 0;\nlet a = &i; // ok!\nlet b = &i; // still ok!\nlet c = &i; // still ok!\nb;\na;\n```\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_mod.rs","byte_start":171,"byte_end":176,"line_start":7,"line_end":7,"column_start":26,"column_end":31,"is_primary":false,"text":[{"text":"        let mut_1 = &mut owned[0];","highlight_start":26,"highlight_end":31}],"label":"first mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_mod.rs","byte_start":206,"byte_end":211,"line_start":8,"line_end":8,"column_start":26,"column_end":31,"is_primary":true,"text":[{"text":"        let mut_2 = &mut owned[1];","highlight_start":26,"highlight_end":31}],"label":"second mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_mod.rs","byte_start":288,"byte_end":294,"line_start":12,"line_end":12,"column_start":25,"column_end":31,"is_primary":false,"text":[{"text":"        let undefined = *mut_1 + *mut_2;","highlight_start":25,"highlight_end":31}],"label":"first borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices","code":null,"level":"help","spans":[],"children":[],"rendered":null}],"rendered":"error[E0499]: cannot borrow `owned` as mutable more than once at a time\n  --> tests/unstable-pass/on_mod.rs:8:26\n   |\n 7 |         let mut_1 = &mut owned[0];\n   |                          ----- first mutable borrow occurs here\n 8 |         let mut_2 = &mut owned[1];\n   |                          ^^^^^ second mutable borrow occurs here\n...\n12 |         let undefined = *mut_1 + *mut_2;\n   |                         ------ first borrow later used here\n   |\n   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot move out of `owned` because it is borrowed","code":{"code":"E0505","explanation":"A value was moved out while it was still borrowed.\n\nErroneous code example:\n\n```compile_fail,E0505\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let _ref_to_val: &Value = &x;\n    eat(x);\n    borrow(_ref_to_val);\n}\n```\n\nHere, the function `eat` takes ownership of `x`. However,\n`x` cannot be moved because the borrow to `_ref_to_val`\nneeds to last till the function `borrow`.\nTo fix that you can do a few different things:\n\n* Try to avoid moving the variable.\n* Release borrow before move.\n* Implement the `Copy` trait on the type.\n\nExamples:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: &Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    eat(&x); // pass by reference, if it's possible\n    borrow(ref_to_val);\n}\n```\n\nOr:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    borrow(ref_to_val);\n    // ref_to_val is no longer used.\n    eat(x);\n}\n```\n\nOr:\n\n```\n#[derive(Clone, Copy)] // implement Copy trait\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let ref_to_val: &Value = &x;\n    eat(x); // it will be copied here.\n    borrow(ref_to_val);\n}\n```\n\nFor more information on Rust's ownership system, take a look at the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_mod.rs","byte_start":256,"byte_end":261,"line_start":11,"line_end":11,"column_start":14,"column_end":19,"is_primary":true,"text":[{"text":"        drop(owned);","highlight_start":14,"highlight_end":19}],"label":"move out of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_mod.rs","byte_start":171,"byte_end":176,"line_start":7,"line_end":7,"column_start":26,"column_end":31,"is_primary":false,"text":[{"text":"        let mut_1 = &mut owned[0];","highlight_start":26,"highlight_end":31}],"label":"borrow of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_mod.rs","byte_start":84,"byte_end":93,"line_start":4,"line_end":4,"column_start":13,"column_end":22,"is_primary":false,"text":[{"text":"        let mut owned = vec![1, 32];","highlight_start":13,"highlight_end":22}],"label":"binding `owned` declared here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_mod.rs","byte_start":288,"byte_end":294,"line_start":12,"line_end":12,"column_start":25,"column_end":31,"is_primary":false,"text":[{"text":"        let undefined = *mut_1 + *mut_2;","highlight_start":25,"highlight_end":31}],"label":"borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"consider cloning the value if the performance cost is acceptable","code":null,"level":"help","spans":[{"file_name":"tests/unstable-pass/on_mod.rs","byte_start":176,"byte_end":176,"line_start":7,"line_end":7,"column_start":31,"column_end":31,"is_primary":true,"text":[{"text":"        let mut_1 = &mut owned[0];","highlight_start":31,"highlight_end":31}],"label":null,"suggested_replacement":".clone()","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0505]: cannot move out of `owned` because it is borrowed\n  --> tests/unstable-pass/on_mod.rs:11:14\n   |\n 4 |         let mut owned = vec![1, 32];\n   |             --------- binding `owned` declared here\n...\n 7 |         let mut_1 = &mut owned[0];\n   |                          ----- borrow of `owned` occurs here\n...\n11 |         drop(owned);\n   |              ^^^^^ move out of `owned` occurs here\n12 |         let undefined = *mut_1 + *mut_2;\n   |                         ------ borrow later used here\n   |\nhelp: consider cloning the value if the performance cost is acceptable\n   |\n 7 |         let mut_1 = &mut owned.clone()[0];\n   |                               ++++++++\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"aborting due to 3 previous errors","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to 3 previous errors\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"Some errors have detailed explanations: E0464, E0499, E0505.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"Some errors have detailed explanations: E0464, E0499, E0505.\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"For more information about an error, try `rustc --explain E0464`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about an error, try `rustc --explain E0464`.\n"}
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] diff of stderr:
[INFO] [stdout] 
[INFO] [stdout] -warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout] - --> $DIR/on_fn.rs:1:1
[INFO] [stdout] +error[E0464]: multiple candidates for `rlib` dependency `you_can` found
[INFO] [stdout] + --> $DIR/on_fn.rs:1:3
[INFO] [stdout]    |
[INFO] [stdout]  1 | #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout] -  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] -
[INFO] [stdout] -warning: the borrow checker is suppressed for these references.
[INFO] [stdout] - --> $DIR/on_fn.rs:6:17
[INFO] [stdout] +  |   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] -6 |     let mut_1 = &mut owned[0];
[INFO] [stdout] -  |                 ^^^^^^^^^^^^^
[INFO] [stdout] -7 |     let mut_2 = &mut owned[1];
[INFO] [stdout] -  |                 ^^^^^^^^^^^^^
[INFO] [stdout] +  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib
[INFO] [stdout] +  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib
[INFO] [stdout]  
[INFO] [stdout] -warning: 2 warnings emitted
[INFO] [stdout] +error[E0499]: cannot borrow `owned` as mutable more than once at a time
[INFO] [stdout] +  --> $DIR/on_fn.rs:7:22
[INFO] [stdout] +   |
[INFO] [stdout] + 6 |     let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                      ----- first mutable borrow occurs here
[INFO] [stdout] + 7 |     let mut_2 = &mut owned[1];
[INFO] [stdout] +   |                      ^^^^^ second mutable borrow occurs here
[INFO] [stdout] +...
[INFO] [stdout] +11 |     let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                     ------ first borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices
[INFO] [stdout]  
[INFO] [stdout] +error[E0505]: cannot move out of `owned` because it is borrowed
[INFO] [stdout] +  --> $DIR/on_fn.rs:10:10
[INFO] [stdout] +   |
[INFO] [stdout] + 3 |     let mut owned = vec![1, 32];
[INFO] [stdout] +   |         --------- binding `owned` declared here
[INFO] [stdout] +...
[INFO] [stdout] + 6 |     let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                      ----- borrow of `owned` occurs here
[INFO] [stdout] +...
[INFO] [stdout] +10 |     drop(owned);
[INFO] [stdout] +   |          ^^^^^ move out of `owned` occurs here
[INFO] [stdout] +11 |     let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                     ------ borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout] +   |
[INFO] [stdout] + 6 |     let mut_1 = &mut owned.clone()[0];
[INFO] [stdout] +   |                           ++++++++
[INFO] [stdout] +
[INFO] [stdout] +error: aborting due to 3 previous errors
[INFO] [stdout] +
[INFO] [stdout] +Some errors have detailed explanations: E0464, E0499, E0505.
[INFO] [stdout] +For more information about an error, try `rustc --explain E0464`.
[INFO] [stdout]  
[INFO] [stdout] 
[INFO] [stdout] The actual stderr differed from the expected stderr.
[INFO] [stdout] Actual stderr saved to /tmp/on_fn.stage-id.stderr
[INFO] [stdout] To update references, rerun the tests and pass the `--bless` flag
[INFO] [stdout] To only update this specific test, also pass `--test-args on_fn.rs`
[INFO] [stdout] 
[INFO] [stdout] error: 1 errors occurred comparing output.
[INFO] [stdout] status: exit status: 1
[INFO] [stdout] command: "rustc" "tests/unstable-pass/on_fn.rs" "-L" "/tmp" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-C" "prefer-dynamic" "-o" "/tmp/on_fn.stage-id" "-A" "unused" "--extern" "you_can" "--extern" "unbounded" "-L" "target/debug/deps" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib" "--edition=2021" "-L" "/tmp/on_fn.stage-id.aux"
[INFO] [stdout] stdout:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] stderr:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] {"$message_type":"diagnostic","message":"multiple candidates for `rlib` dependency `you_can` found","code":{"code":"E0464","explanation":"The compiler found multiple library files with the requested crate name.\n\n```compile_fail\n// aux-build:crateresolve-1.rs\n// aux-build:crateresolve-2.rs\n// aux-build:crateresolve-3.rs\n\nextern crate crateresolve;\n//~^ ERROR multiple candidates for `rlib` dependency `crateresolve` found\n\nfn main() {}\n```\n\nThis error can occur in several different cases -- for example, when using\n`extern crate` or passing `--extern` options without crate paths. It can also be\ncaused by caching issues with the build directory, in which case `cargo clean`\nmay help.\n\nIn the above example, there are three different library files, all of which\ndefine the same crate name. Without providing a full path, there is no way for\nthe compiler to know which crate it should use.\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_fn.rs","byte_start":2,"byte_end":9,"line_start":1,"line_end":1,"column_start":3,"column_end":10,"is_primary":true,"text":[{"text":"#[you_can::turn_off_the_borrow_checker]","highlight_start":3,"highlight_end":10}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"candidate #2: /opt/rustwide/target/debug/libyou_can.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null}],"rendered":"error[E0464]: multiple candidates for `rlib` dependency `you_can` found\n --> tests/unstable-pass/on_fn.rs:1:3\n  |\n1 | #[you_can::turn_off_the_borrow_checker]\n  |   ^^^^^^^\n  |\n  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib\n  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot borrow `owned` as mutable more than once at a time","code":{"code":"E0499","explanation":"A variable was borrowed as mutable more than once.\n\nErroneous code example:\n\n```compile_fail,E0499\nlet mut i = 0;\nlet mut x = &mut i;\nlet mut a = &mut i;\nx;\n// error: cannot borrow `i` as mutable more than once at a time\n```\n\nPlease note that in Rust, you can either have many immutable references, or one\nmutable reference. For more details you may want to read the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n\nExample:\n\n```\nlet mut i = 0;\nlet mut x = &mut i; // ok!\n\n// or:\nlet mut i = 0;\nlet a = &i; // ok!\nlet b = &i; // still ok!\nlet c = &i; // still ok!\nb;\na;\n```\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_fn.rs","byte_start":139,"byte_end":144,"line_start":6,"line_end":6,"column_start":22,"column_end":27,"is_primary":false,"text":[{"text":"    let mut_1 = &mut owned[0];","highlight_start":22,"highlight_end":27}],"label":"first mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_fn.rs","byte_start":170,"byte_end":175,"line_start":7,"line_end":7,"column_start":22,"column_end":27,"is_primary":true,"text":[{"text":"    let mut_2 = &mut owned[1];","highlight_start":22,"highlight_end":27}],"label":"second mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_fn.rs","byte_start":240,"byte_end":246,"line_start":11,"line_end":11,"column_start":21,"column_end":27,"is_primary":false,"text":[{"text":"    let undefined = *mut_1 + *mut_2;","highlight_start":21,"highlight_end":27}],"label":"first borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices","code":null,"level":"help","spans":[],"children":[],"rendered":null}],"rendered":"error[E0499]: cannot borrow `owned` as mutable more than once at a time\n  --> tests/unstable-pass/on_fn.rs:7:22\n   |\n 6 |     let mut_1 = &mut owned[0];\n   |                      ----- first mutable borrow occurs here\n 7 |     let mut_2 = &mut owned[1];\n   |                      ^^^^^ second mutable borrow occurs here\n...\n11 |     let undefined = *mut_1 + *mut_2;\n   |                     ------ first borrow later used here\n   |\n   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot move out of `owned` because it is borrowed","code":{"code":"E0505","explanation":"A value was moved out while it was still borrowed.\n\nErroneous code example:\n\n```compile_fail,E0505\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let _ref_to_val: &Value = &x;\n    eat(x);\n    borrow(_ref_to_val);\n}\n```\n\nHere, the function `eat` takes ownership of `x`. However,\n`x` cannot be moved because the borrow to `_ref_to_val`\nneeds to last till the function `borrow`.\nTo fix that you can do a few different things:\n\n* Try to avoid moving the variable.\n* Release borrow before move.\n* Implement the `Copy` trait on the type.\n\nExamples:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: &Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    eat(&x); // pass by reference, if it's possible\n    borrow(ref_to_val);\n}\n```\n\nOr:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    borrow(ref_to_val);\n    // ref_to_val is no longer used.\n    eat(x);\n}\n```\n\nOr:\n\n```\n#[derive(Clone, Copy)] // implement Copy trait\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let ref_to_val: &Value = &x;\n    eat(x); // it will be copied here.\n    borrow(ref_to_val);\n}\n```\n\nFor more information on Rust's ownership system, take a look at the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_fn.rs","byte_start":212,"byte_end":217,"line_start":10,"line_end":10,"column_start":10,"column_end":15,"is_primary":true,"text":[{"text":"    drop(owned);","highlight_start":10,"highlight_end":15}],"label":"move out of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_fn.rs","byte_start":139,"byte_end":144,"line_start":6,"line_end":6,"column_start":22,"column_end":27,"is_primary":false,"text":[{"text":"    let mut_1 = &mut owned[0];","highlight_start":22,"highlight_end":27}],"label":"borrow of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_fn.rs","byte_start":60,"byte_end":69,"line_start":3,"line_end":3,"column_start":9,"column_end":18,"is_primary":false,"text":[{"text":"    let mut owned = vec![1, 32];","highlight_start":9,"highlight_end":18}],"label":"binding `owned` declared here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_fn.rs","byte_start":240,"byte_end":246,"line_start":11,"line_end":11,"column_start":21,"column_end":27,"is_primary":false,"text":[{"text":"    let undefined = *mut_1 + *mut_2;","highlight_start":21,"highlight_end":27}],"label":"borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"consider cloning the value if the performance cost is acceptable","code":null,"level":"help","spans":[{"file_name":"tests/unstable-pass/on_fn.rs","byte_start":144,"byte_end":144,"line_start":6,"line_end":6,"column_start":27,"column_end":27,"is_primary":true,"text":[{"text":"    let mut_1 = &mut owned[0];","highlight_start":27,"highlight_end":27}],"label":null,"suggested_replacement":".clone()","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0505]: cannot move out of `owned` because it is borrowed\n  --> tests/unstable-pass/on_fn.rs:10:10\n   |\n 3 |     let mut owned = vec![1, 32];\n   |         --------- binding `owned` declared here\n...\n 6 |     let mut_1 = &mut owned[0];\n   |                      ----- borrow of `owned` occurs here\n...\n10 |     drop(owned);\n   |          ^^^^^ move out of `owned` occurs here\n11 |     let undefined = *mut_1 + *mut_2;\n   |                     ------ borrow later used here\n   |\nhelp: consider cloning the value if the performance cost is acceptable\n   |\n 6 |     let mut_1 = &mut owned.clone()[0];\n   |                           ++++++++\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"aborting due to 3 previous errors","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to 3 previous errors\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"Some errors have detailed explanations: E0464, E0499, E0505.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"Some errors have detailed explanations: E0464, E0499, E0505.\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"For more information about an error, try `rustc --explain E0464`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about an error, try `rustc --explain E0464`.\n"}
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] diff of stderr:
[INFO] [stdout] 
[INFO] [stdout] -warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout] - --> $DIR/on_statement.rs:6:5
[INFO] [stdout] +error[E0464]: multiple candidates for `rlib` dependency `you_can` found
[INFO] [stdout] + --> $DIR/on_statement.rs:6:7
[INFO] [stdout]    |
[INFO] [stdout]  6 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout] -  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] -
[INFO] [stdout] -warning: this suppresses the borrow checker in an unsafe, unsound, and unstable way that produces undefined behaviour. this is not suitable for any purpose beyond educational experimentation.
[INFO] [stdout] - --> $DIR/on_statement.rs:8:5
[INFO] [stdout] +  |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] -8 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout] -  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] +  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib
[INFO] [stdout] +  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib
[INFO] [stdout]  
[INFO] [stdout] -warning: 2 warnings emitted
[INFO] [stdout] +error[E0499]: cannot borrow `owned` as mutable more than once at a time
[INFO] [stdout] +  --> $DIR/on_statement.rs:9:22
[INFO] [stdout] +   |
[INFO] [stdout] + 7 |     let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                      ----- first mutable borrow occurs here
[INFO] [stdout] + 8 |     #[you_can::turn_off_the_borrow_checker]
[INFO] [stdout] + 9 |     let mut_2 = &mut owned[1];
[INFO] [stdout] +   |                      ^^^^^ second mutable borrow occurs here
[INFO] [stdout] +...
[INFO] [stdout] +13 |     let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                     ------ first borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices
[INFO] [stdout]  
[INFO] [stdout] +error[E0505]: cannot move out of `owned` because it is borrowed
[INFO] [stdout] +  --> $DIR/on_statement.rs:12:10
[INFO] [stdout] +   |
[INFO] [stdout] + 4 |     let mut owned = vec![1, 32];
[INFO] [stdout] +   |         --------- binding `owned` declared here
[INFO] [stdout] +...
[INFO] [stdout] + 7 |     let mut_1 = &mut owned[0];
[INFO] [stdout] +   |                      ----- borrow of `owned` occurs here
[INFO] [stdout] +...
[INFO] [stdout] +12 |     drop(owned);
[INFO] [stdout] +   |          ^^^^^ move out of `owned` occurs here
[INFO] [stdout] +13 |     let undefined = *mut_1 + *mut_2;
[INFO] [stdout] +   |                     ------ borrow later used here
[INFO] [stdout] +   |
[INFO] [stdout] +help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout] +   |
[INFO] [stdout] + 7 |     let mut_1 = &mut owned.clone()[0];
[INFO] [stdout] +   |                           ++++++++
[INFO] [stdout] +
[INFO] [stdout] +error: aborting due to 3 previous errors
[INFO] [stdout] +
[INFO] [stdout] +Some errors have detailed explanations: E0464, E0499, E0505.
[INFO] [stdout] +For more information about an error, try `rustc --explain E0464`.
[INFO] [stdout]  
[INFO] [stdout] 
[INFO] [stdout] The actual stderr differed from the expected stderr.
[INFO] [stdout] Actual stderr saved to /tmp/on_statement.stage-id.stderr
[INFO] [stdout] To update references, rerun the tests and pass the `--bless` flag
[INFO] [stdout] To only update this specific test, also pass `--test-args on_statement.rs`
[INFO] [stdout] 
[INFO] [stdout] error: 1 errors occurred comparing output.
[INFO] [stdout] status: exit status: 1
[INFO] [stdout] command: "rustc" "tests/unstable-pass/on_statement.rs" "-L" "/tmp" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "-C" "prefer-dynamic" "-o" "/tmp/on_statement.stage-id" "-A" "unused" "--extern" "you_can" "--extern" "unbounded" "-L" "target/debug/deps" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-L" "/opt/rustwide/rustup-home/toolchains/c2e32f1c9652b13ed99608599c1e855462f421f3/lib" "--edition=2021" "-L" "/tmp/on_statement.stage-id.aux"
[INFO] [stdout] stdout:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] stderr:
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] {"$message_type":"diagnostic","message":"multiple candidates for `rlib` dependency `you_can` found","code":{"code":"E0464","explanation":"The compiler found multiple library files with the requested crate name.\n\n```compile_fail\n// aux-build:crateresolve-1.rs\n// aux-build:crateresolve-2.rs\n// aux-build:crateresolve-3.rs\n\nextern crate crateresolve;\n//~^ ERROR multiple candidates for `rlib` dependency `crateresolve` found\n\nfn main() {}\n```\n\nThis error can occur in several different cases -- for example, when using\n`extern crate` or passing `--extern` options without crate paths. It can also be\ncaused by caching issues with the build directory, in which case `cargo clean`\nmay help.\n\nIn the above example, there are three different library files, all of which\ndefine the same crate name. Without providing a full path, there is no way for\nthe compiler to know which crate it should use.\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_statement.rs","byte_start":142,"byte_end":149,"line_start":6,"line_end":6,"column_start":7,"column_end":14,"is_primary":true,"text":[{"text":"    #[you_can::turn_off_the_borrow_checker]","highlight_start":7,"highlight_end":14}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null},{"message":"candidate #2: /opt/rustwide/target/debug/libyou_can.rlib","code":null,"level":"note","spans":[],"children":[],"rendered":null}],"rendered":"error[E0464]: multiple candidates for `rlib` dependency `you_can` found\n --> tests/unstable-pass/on_statement.rs:6:7\n  |\n6 |     #[you_can::turn_off_the_borrow_checker]\n  |       ^^^^^^^\n  |\n  = note: candidate #1: /opt/rustwide/target/debug/deps/libyou_can-b08806133707d29a.rlib\n  = note: candidate #2: /opt/rustwide/target/debug/libyou_can.rlib\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot borrow `owned` as mutable more than once at a time","code":{"code":"E0499","explanation":"A variable was borrowed as mutable more than once.\n\nErroneous code example:\n\n```compile_fail,E0499\nlet mut i = 0;\nlet mut x = &mut i;\nlet mut a = &mut i;\nx;\n// error: cannot borrow `i` as mutable more than once at a time\n```\n\nPlease note that in Rust, you can either have many immutable references, or one\nmutable reference. For more details you may want to read the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n\nExample:\n\n```\nlet mut i = 0;\nlet mut x = &mut i; // ok!\n\n// or:\nlet mut i = 0;\nlet a = &i; // ok!\nlet b = &i; // still ok!\nlet c = &i; // still ok!\nb;\na;\n```\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_statement.rs","byte_start":201,"byte_end":206,"line_start":7,"line_end":7,"column_start":22,"column_end":27,"is_primary":false,"text":[{"text":"    let mut_1 = &mut owned[0];","highlight_start":22,"highlight_end":27}],"label":"first mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_statement.rs","byte_start":276,"byte_end":281,"line_start":9,"line_end":9,"column_start":22,"column_end":27,"is_primary":true,"text":[{"text":"    let mut_2 = &mut owned[1];","highlight_start":22,"highlight_end":27}],"label":"second mutable borrow occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_statement.rs","byte_start":346,"byte_end":352,"line_start":13,"line_end":13,"column_start":21,"column_end":27,"is_primary":false,"text":[{"text":"    let undefined = *mut_1 + *mut_2;","highlight_start":21,"highlight_end":27}],"label":"first borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices","code":null,"level":"help","spans":[],"children":[],"rendered":null}],"rendered":"error[E0499]: cannot borrow `owned` as mutable more than once at a time\n  --> tests/unstable-pass/on_statement.rs:9:22\n   |\n 7 |     let mut_1 = &mut owned[0];\n   |                      ----- first mutable borrow occurs here\n 8 |     #[you_can::turn_off_the_borrow_checker]\n 9 |     let mut_2 = &mut owned[1];\n   |                      ^^^^^ second mutable borrow occurs here\n...\n13 |     let undefined = *mut_1 + *mut_2;\n   |                     ------ first borrow later used here\n   |\n   = help: use `.split_at_mut(position)` to obtain two mutable non-overlapping sub-slices\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"cannot move out of `owned` because it is borrowed","code":{"code":"E0505","explanation":"A value was moved out while it was still borrowed.\n\nErroneous code example:\n\n```compile_fail,E0505\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let _ref_to_val: &Value = &x;\n    eat(x);\n    borrow(_ref_to_val);\n}\n```\n\nHere, the function `eat` takes ownership of `x`. However,\n`x` cannot be moved because the borrow to `_ref_to_val`\nneeds to last till the function `borrow`.\nTo fix that you can do a few different things:\n\n* Try to avoid moving the variable.\n* Release borrow before move.\n* Implement the `Copy` trait on the type.\n\nExamples:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: &Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    eat(&x); // pass by reference, if it's possible\n    borrow(ref_to_val);\n}\n```\n\nOr:\n\n```\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n\n    let ref_to_val: &Value = &x;\n    borrow(ref_to_val);\n    // ref_to_val is no longer used.\n    eat(x);\n}\n```\n\nOr:\n\n```\n#[derive(Clone, Copy)] // implement Copy trait\nstruct Value {}\n\nfn borrow(val: &Value) {}\n\nfn eat(val: Value) {}\n\nfn main() {\n    let x = Value{};\n    let ref_to_val: &Value = &x;\n    eat(x); // it will be copied here.\n    borrow(ref_to_val);\n}\n```\n\nFor more information on Rust's ownership system, take a look at the\n[References & Borrowing][references-and-borrowing] section of the Book.\n\n[references-and-borrowing]: https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html\n"},"level":"error","spans":[{"file_name":"tests/unstable-pass/on_statement.rs","byte_start":318,"byte_end":323,"line_start":12,"line_end":12,"column_start":10,"column_end":15,"is_primary":true,"text":[{"text":"    drop(owned);","highlight_start":10,"highlight_end":15}],"label":"move out of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_statement.rs","byte_start":201,"byte_end":206,"line_start":7,"line_end":7,"column_start":22,"column_end":27,"is_primary":false,"text":[{"text":"    let mut_1 = &mut owned[0];","highlight_start":22,"highlight_end":27}],"label":"borrow of `owned` occurs here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_statement.rs","byte_start":79,"byte_end":88,"line_start":4,"line_end":4,"column_start":9,"column_end":18,"is_primary":false,"text":[{"text":"    let mut owned = vec![1, 32];","highlight_start":9,"highlight_end":18}],"label":"binding `owned` declared here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"tests/unstable-pass/on_statement.rs","byte_start":346,"byte_end":352,"line_start":13,"line_end":13,"column_start":21,"column_end":27,"is_primary":false,"text":[{"text":"    let undefined = *mut_1 + *mut_2;","highlight_start":21,"highlight_end":27}],"label":"borrow later used here","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"consider cloning the value if the performance cost is acceptable","code":null,"level":"help","spans":[{"file_name":"tests/unstable-pass/on_statement.rs","byte_start":206,"byte_end":206,"line_start":7,"line_end":7,"column_start":27,"column_end":27,"is_primary":true,"text":[{"text":"    let mut_1 = &mut owned[0];","highlight_start":27,"highlight_end":27}],"label":null,"suggested_replacement":".clone()","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error[E0505]: cannot move out of `owned` because it is borrowed\n  --> tests/unstable-pass/on_statement.rs:12:10\n   |\n 4 |     let mut owned = vec![1, 32];\n   |         --------- binding `owned` declared here\n...\n 7 |     let mut_1 = &mut owned[0];\n   |                      ----- borrow of `owned` occurs here\n...\n12 |     drop(owned);\n   |          ^^^^^ move out of `owned` occurs here\n13 |     let undefined = *mut_1 + *mut_2;\n   |                     ------ borrow later used here\n   |\nhelp: consider cloning the value if the performance cost is acceptable\n   |\n 7 |     let mut_1 = &mut owned.clone()[0];\n   |                           ++++++++\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"aborting due to 3 previous errors","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to 3 previous errors\n\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"Some errors have detailed explanations: E0464, E0499, E0505.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"Some errors have detailed explanations: E0464, E0499, E0505.\n"}
[INFO] [stdout] {"$message_type":"diagnostic","message":"For more information about an error, try `rustc --explain E0464`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about an error, try `rustc --explain E0464`.\n"}
[INFO] [stdout] 
[INFO] [stdout] ------------------------------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] thread 'run_pass' (27) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/compiletest_rs-0.8.0/src/lib.rs:111:22:
[INFO] [stdout] Some tests failed
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x60156cc36f22 - std::backtrace_rs::backtrace::libunwind::trace::h9ea1e07ac77a25d7
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x60156cc36f22 - std::backtrace_rs::backtrace::trace_unsynchronized::h72b75eb83b53d15a
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x60156cc36f22 - std::sys::backtrace::_print_fmt::h255777b7ec902439
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x60156cc36f22 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8a1ac49fcd7ee8ce
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x60156cc4840f - core::fmt::rt::Argument::fmt::h635cbf3c6754cc90
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x60156cc4840f - core::fmt::write::hbdcc0ec4f1bab1db
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x60156cbff053 - std::io::default_write_fmt::h2580ece0d4b58e51
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x60156cbff053 - std::io::Write::write_fmt::hac9e42858f273b87
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x60156cc0c692 - std::sys::backtrace::BacktraceLock::print::h052febbd86f7bf07
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x60156cc11bef - std::panicking::default_hook::{{closure}}::h66aeee20dd470abb
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x60156cc11a81 - std::panicking::default_hook::h9d66b9642014ce48
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x60156c8fbd8e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h8c698701e444e564
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x60156c8fbd8e - test::test_main_with_exit_callback::{{closure}}::ha1c98e7b69c4defb
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x60156cc122af - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hc4f222a8a57c637a
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x60156cc122af - std::panicking::panic_with_hook::h6d5921a1a1fa5a8e
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x60156cc118fc - std::panicking::begin_panic::{{closure}}::hbca37b9370ed1d4e
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:771:9
[INFO] [stdout]   16:     0x60156cc0c7d9 - std::sys::backtrace::__rust_end_short_backtrace::h383389d914306e48
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x60156cc118c2 - std::panicking::begin_panic::hacb00ff898b62556
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:770:5
[INFO] [stdout]   18:     0x60156c9c89a4 - compiletest_rs::run_tests::h6415586ac938ea98
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/compiletest_rs-0.8.0/src/lib.rs:111:22
[INFO] [stdout]   19:     0x60156c8c35fa - compile_tests::run_pass::hfc5caba37d1488b9
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/compile_tests.rs:28:5
[INFO] [stdout]   20:     0x60156c8c3657 - compile_tests::run_pass::{{closure}}::h36c56127e0a851b6
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/compile_tests.rs:4:14
[INFO] [stdout]   21:     0x60156c8c3806 - core::ops::function::FnOnce::call_once::he582d73c73605c5a
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x60156c8fbbdb - core::ops::function::FnOnce::call_once::h4f6eabe90cccb47d
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x60156c8fbbdb - test::__rust_begin_short_backtrace::h94208530f2b4c8c7
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:663:18
[INFO] [stdout]   24:     0x60156c90fbed - test::run_test_in_process::{{closure}}::hbdc6a45a78c46404
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:686:74
[INFO] [stdout]   25:     0x60156c90fbed - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7f9d8efc7eedd165
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   26:     0x60156c90fbed - std::panicking::catch_unwind::do_call::he5edbaf126c13b99
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   27:     0x60156c90fbed - std::panicking::catch_unwind::h3d6a8652eceeabce
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   28:     0x60156c90fbed - std::panic::catch_unwind::hbef0c501dd7bb498
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x60156c90fbed - test::run_test_in_process::h400008a46a5006a0
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:686:27
[INFO] [stdout]   30:     0x60156c90fbed - test::run_test::{{closure}}::h9a131655b31d9427
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:607:43
[INFO] [stdout]   31:     0x60156c8e9134 - test::run_test::{{closure}}::he4a7177c216308c0
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:637:41
[INFO] [stdout]   32:     0x60156c8e9134 - std::sys::backtrace::__rust_begin_short_backtrace::hd3980e9c55d6c539
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   33:     0x60156c8eca6a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h18552df67c7aa9b8
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   34:     0x60156c8eca6a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h3d7b285234641a08
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   35:     0x60156c8eca6a - std::panicking::catch_unwind::do_call::h5a2b5cf36528a5b2
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   36:     0x60156c8eca6a - std::panicking::catch_unwind::h7e8b531bbda77d20
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   37:     0x60156c8eca6a - std::panic::catch_unwind::hf9bbb2040b4f1e6c
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   38:     0x60156c8eca6a - std::thread::Builder::spawn_unchecked_::{{closure}}::h600f92cf68549574
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   39:     0x60156c8eca6a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb6607307df8a1847
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x60156cc0740f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6891ad53a5ed6f52
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   41:     0x60156cc0740f - std::sys::thread::unix::Thread::new::thread_start::h7f3e77fa86df70af
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   42:     0x7a0f22d46aa4 - <unknown>
[INFO] [stdout]   43:     0x7a0f22dd3a64 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     run_pass
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test compile_tests`
[INFO] running `Command { std: "docker" "inspect" "8ef53eead3898d43aae1012c97f4343b72f538130d9b1018df3c4b284a1d8f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ef53eead3898d43aae1012c97f4343b72f538130d9b1018df3c4b284a1d8f0c", kill_on_drop: false }`
[INFO] [stdout] 8ef53eead3898d43aae1012c97f4343b72f538130d9b1018df3c4b284a1d8f0c
