[INFO] crate grex 1.1.0 is already in cache [INFO] checking grex-1.1.0 against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665 [INFO] extracting crate grex 1.1.0 into /workspace/builds/worker-11/source [INFO] validating manifest of crates.io crate grex 1.1.0 on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee [INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate grex 1.1.0 [INFO] finished tweaking crates.io crate grex 1.1.0 [INFO] tweaked toml for crates.io crate grex 1.1.0 written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate crates.io crate grex 1.1.0 already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d334da5229d1a31b1e228f7da6ed90f9f63b65a261b6d35dd9da857b593c1e14 [INFO] running `"docker" "start" "-a" "d334da5229d1a31b1e228f7da6ed90f9f63b65a261b6d35dd9da857b593c1e14"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking unic-common v0.9.0 [INFO] [stderr] Compiling ndarray v0.13.0 [INFO] [stderr] Checking unic-char-range v0.9.0 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Checking bit-vec v0.5.1 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking unic-char-property v0.9.0 [INFO] [stderr] Checking unic-ucd-version v0.9.0 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking colored v1.9.3 [INFO] [stderr] Checking bit-set v0.5.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking unic-ucd-category v0.9.0 [INFO] [stderr] Checking regex v1.3.6 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking petgraph v0.5.0 [INFO] [stderr] Compiling rstest v0.6.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking float-cmp v0.6.0 [INFO] [stderr] Checking predicates v1.0.4 [INFO] [stderr] Checking assert_cmd v1.0.1 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking rusty-fork v0.2.2 [INFO] [stderr] Checking proptest v0.9.6 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling structopt-derive v0.4.6 [INFO] [stderr] Checking structopt v0.3.13 [INFO] [stderr] Checking grex v1.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/regexp/regexp.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | / std::mem::replace( [INFO] [stderr] 48 | | test_cases, [INFO] [stderr] 49 | | test_cases.iter().map(|it| it.to_lowercase()).collect_vec(), [INFO] [stderr] 50 | | ); [INFO] [stderr] | |__________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/regexp/regexp.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | / std::mem::replace( [INFO] [stderr] 48 | | test_cases, [INFO] [stderr] 49 | | test_cases.iter().map(|it| it.to_lowercase()).collect_vec(), [INFO] [stderr] 50 | | ); [INFO] [stderr] | |__________^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 09s [INFO] running `"docker" "inspect" "d334da5229d1a31b1e228f7da6ed90f9f63b65a261b6d35dd9da857b593c1e14"` [INFO] running `"docker" "rm" "-f" "d334da5229d1a31b1e228f7da6ed90f9f63b65a261b6d35dd9da857b593c1e14"` [INFO] [stdout] d334da5229d1a31b1e228f7da6ed90f9f63b65a261b6d35dd9da857b593c1e14