[INFO] fetching crate you-can 0.0.14... [INFO] checking you-can-0.0.14 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate you-can 0.0.14 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate you-can 0.0.14 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-7-tc1/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-7-tc1/source/Cargo.toml [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded compiletest_rs v0.8.0 [INFO] [stderr] Downloaded you-can-build-macros v0.0.14 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5e2303778f7bbc9e8ce587f1302c634bdb9f5510af78c15234aaff6ed33cafc9 [INFO] running `Command { std: "docker" "start" "-a" "5e2303778f7bbc9e8ce587f1302c634bdb9f5510af78c15234aaff6ed33cafc9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5e2303778f7bbc9e8ce587f1302c634bdb9f5510af78c15234aaff6ed33cafc9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e2303778f7bbc9e8ce587f1302c634bdb9f5510af78c15234aaff6ed33cafc9", kill_on_drop: false }` [INFO] [stdout] 5e2303778f7bbc9e8ce587f1302c634bdb9f5510af78c15234aaff6ed33cafc9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 860df23f824577f26d0c301fd7160b1cdfc00af517c002c9ee4cca02dfad1188 [INFO] running `Command { std: "docker" "start" "-a" "860df23f824577f26d0c301fd7160b1cdfc00af517c002c9ee4cca02dfad1188", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling libc v0.2.131 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling unicode-ident v1.0.3 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling serde_derive v1.0.143 [INFO] [stderr] Compiling serde v1.0.143 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling serde_json v1.0.83 [INFO] [stderr] Compiling semver v1.0.13 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Checking ryu v1.0.11 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Checking fastrand v1.8.0 [INFO] [stderr] Compiling compiletest_rs v0.8.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [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] Checking rustc_version v0.4.0 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking filetime v0.2.17 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking term v0.7.0 [INFO] [stderr] Checking tester v0.9.0 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking you-can v0.0.14 (/opt/rustwide/workdir) [INFO] [stderr] Checking 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/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/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: 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_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: 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_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_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_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] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.18s [INFO] running `Command { std: "docker" "inspect" "860df23f824577f26d0c301fd7160b1cdfc00af517c002c9ee4cca02dfad1188", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "860df23f824577f26d0c301fd7160b1cdfc00af517c002c9ee4cca02dfad1188", kill_on_drop: false }` [INFO] [stdout] 860df23f824577f26d0c301fd7160b1cdfc00af517c002c9ee4cca02dfad1188 [INFO] checking you-can-0.0.14 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate you-can 0.0.14 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate you-can 0.0.14 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-7-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-7-tc2/source/Cargo.toml [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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f03f33838c044b0ada2dd367580e5912d8ac17b10e3dec9bc2ff4edf182aeb33 [INFO] running `Command { std: "docker" "start" "-a" "f03f33838c044b0ada2dd367580e5912d8ac17b10e3dec9bc2ff4edf182aeb33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f03f33838c044b0ada2dd367580e5912d8ac17b10e3dec9bc2ff4edf182aeb33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f03f33838c044b0ada2dd367580e5912d8ac17b10e3dec9bc2ff4edf182aeb33", kill_on_drop: false }` [INFO] [stdout] f03f33838c044b0ada2dd367580e5912d8ac17b10e3dec9bc2ff4edf182aeb33 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b44f6c7146bf13c03e9998eb6fbf570496c8e4b13eb79130716f5aa0de1d7950 [INFO] running `Command { std: "docker" "start" "-a" "b44f6c7146bf13c03e9998eb6fbf570496c8e4b13eb79130716f5aa0de1d7950", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling libc v0.2.131 [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-parser v0.7.0 [INFO] [stderr] Compiling serde_derive v1.0.143 [INFO] [stderr] Compiling serde v1.0.143 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling serde_json v1.0.83 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Checking ryu v1.0.11 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling semver v1.0.13 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking fastrand v1.8.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Compiling compiletest_rs v0.8.0 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking rustc_version v0.4.0 [INFO] [stderr] Compiling you-can-build-macros v0.0.14 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking filetime v0.2.17 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking term v0.7.0 [INFO] [stderr] Checking tester v0.9.0 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.6.0/src/exec.rs:848:13 [INFO] [stdout] | [INFO] [stdout] 848 | / match dfa::Fsm::reverse( [INFO] [stdout] 849 | | &self.ro.dfa_reverse, [INFO] [stdout] 850 | | self.cache.value(), [INFO] [stdout] 851 | | false, [INFO] [stdout] ... | [INFO] [stdout] 862 | | Quit => return Some(Quit), [INFO] [stdout] 863 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "b44f6c7146bf13c03e9998eb6fbf570496c8e4b13eb79130716f5aa0de1d7950", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b44f6c7146bf13c03e9998eb6fbf570496c8e4b13eb79130716f5aa0de1d7950", kill_on_drop: false }` [INFO] [stdout] b44f6c7146bf13c03e9998eb6fbf570496c8e4b13eb79130716f5aa0de1d7950