[INFO] fetching crate mut_guard 0.1.0... [INFO] testing mut_guard-0.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] extracting crate mut_guard 0.1.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate mut_guard 0.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mut_guard 0.1.0 [INFO] finished tweaking crates.io crate mut_guard 0.1.0 [INFO] tweaked toml for crates.io crate mut_guard 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] e70969d02f9419c43838746a193519b5bcf9819eff5cabda2b66d5a8c133c0cc [INFO] running `Command { std: "docker" "start" "-a" "e70969d02f9419c43838746a193519b5bcf9819eff5cabda2b66d5a8c133c0cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e70969d02f9419c43838746a193519b5bcf9819eff5cabda2b66d5a8c133c0cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e70969d02f9419c43838746a193519b5bcf9819eff5cabda2b66d5a8c133c0cc", kill_on_drop: false }` [INFO] [stdout] e70969d02f9419c43838746a193519b5bcf9819eff5cabda2b66d5a8c133c0cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 19c601a4aa857ab38bf46148393e1648a9f60fab0c368db475bee70af5681f8e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "19c601a4aa857ab38bf46148393e1648a9f60fab0c368db475bee70af5681f8e", kill_on_drop: false }` [INFO] [stderr] Compiling mut_guard v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | f: Box<'a + FnMut(&mut T)>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&mut T)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.35s [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "19c601a4aa857ab38bf46148393e1648a9f60fab0c368db475bee70af5681f8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19c601a4aa857ab38bf46148393e1648a9f60fab0c368db475bee70af5681f8e", kill_on_drop: false }` [INFO] [stdout] 19c601a4aa857ab38bf46148393e1648a9f60fab0c368db475bee70af5681f8e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 7d9234c1df1added65bee22d595f2b62c9010f4d256cb0a55b508e7af7c4ed3f [INFO] running `Command { std: "docker" "start" "-a" "7d9234c1df1added65bee22d595f2b62c9010f4d256cb0a55b508e7af7c4ed3f", kill_on_drop: false }` [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | f: Box<'a + FnMut(&mut T)>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&mut T)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling serde_json v1.0.71 [INFO] [stderr] Compiling mut_guard v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:211:12 [INFO] [stdout] | [INFO] [stdout] 211 | f: Box<'a + FnMut(&mut T)>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&mut T)` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 10.48s [INFO] running `Command { std: "docker" "inspect" "7d9234c1df1added65bee22d595f2b62c9010f4d256cb0a55b508e7af7c4ed3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d9234c1df1added65bee22d595f2b62c9010f4d256cb0a55b508e7af7c4ed3f", kill_on_drop: false }` [INFO] [stdout] 7d9234c1df1added65bee22d595f2b62c9010f4d256cb0a55b508e7af7c4ed3f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 36f973db98eb68d3af44e18eba6e66789739291c09ac93ffada88299b184b41d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "36f973db98eb68d3af44e18eba6e66789739291c09ac93ffada88299b184b41d", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] running 4 tests [INFO] [stderr] --> src/lib.rs:211:12 [INFO] [stdout] test tests::bank ... ok [INFO] [stderr] | [INFO] [stderr] 211 | f: Box<'a + FnMut(&mut T)>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&mut T)` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: `mut_guard` (lib) generated 1 warning [INFO] [stderr] warning: `mut_guard` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/mut_guard-a2d690ec3a6350d6) [INFO] [stdout] test tests::count_access ... ok [INFO] [stdout] test tests::invariant_bank - should panic ... ok [INFO] [stdout] test tests::less_than - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s [INFO] [stdout] [INFO] [stderr] Doc-tests mut_guard [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - (line 57) ... ok [INFO] [stdout] test src/lib.rs - (line 17) ... ok [INFO] [stdout] test src/lib.rs - (line 85) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.85s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "36f973db98eb68d3af44e18eba6e66789739291c09ac93ffada88299b184b41d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "36f973db98eb68d3af44e18eba6e66789739291c09ac93ffada88299b184b41d", kill_on_drop: false }` [INFO] [stdout] 36f973db98eb68d3af44e18eba6e66789739291c09ac93ffada88299b184b41d