[INFO] crate sysfs-rs 0.0.12 is already in cache
[INFO] testing sysfs-rs-0.0.12 against 1.38.0 for beta-1.39-1
[INFO] extracting crate sysfs-rs 0.0.12 into work/builds/worker-8/source
[INFO] validating manifest of crates.io crate sysfs-rs 0.0.12 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sysfs-rs 0.0.12
[INFO] finished tweaking crates.io crate sysfs-rs 0.0.12
[INFO] tweaked toml for crates.io crate sysfs-rs 0.0.12 written to work/builds/worker-8/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 19f3c8134530b4a1c4524f0b5d388f304b89d062b41a5f4bc29160e7307e6ddd
[INFO] running `"docker" "start" "-a" "19f3c8134530b4a1c4524f0b5d388f304b89d062b41a5f4bc29160e7307e6ddd"`
[INFO] [stderr]    Compiling sysfs-rs v0.0.12 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `core::str::<impl str>::trim` that must be used
[INFO] [stderr]   --> src/util.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |                 s.trim();
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this returns the trimmed string as a slice, without modifying the original
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `"docker" "inspect" "19f3c8134530b4a1c4524f0b5d388f304b89d062b41a5f4bc29160e7307e6ddd"`
[INFO] running `"docker" "rm" "-f" "19f3c8134530b4a1c4524f0b5d388f304b89d062b41a5f4bc29160e7307e6ddd"`
[INFO] [stdout] 19f3c8134530b4a1c4524f0b5d388f304b89d062b41a5f4bc29160e7307e6ddd
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d0d39e1b6f4c05f6fc57f89e1dfd8de6da50554ac604babc9346c285ef71f0a1
[INFO] running `"docker" "start" "-a" "d0d39e1b6f4c05f6fc57f89e1dfd8de6da50554ac604babc9346c285ef71f0a1"`
[INFO] [stderr]    Compiling sysfs-rs v0.0.12 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `core::str::<impl str>::trim` that must be used
[INFO] [stderr]   --> src/util.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |                 s.trim();
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this returns the trimmed string as a slice, without modifying the original
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "d0d39e1b6f4c05f6fc57f89e1dfd8de6da50554ac604babc9346c285ef71f0a1"`
[INFO] running `"docker" "rm" "-f" "d0d39e1b6f4c05f6fc57f89e1dfd8de6da50554ac604babc9346c285ef71f0a1"`
[INFO] [stdout] d0d39e1b6f4c05f6fc57f89e1dfd8de6da50554ac604babc9346c285ef71f0a1
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 7b40327f3db580e61fe48a468d73fb15a5f36d80efcb4295dd0159a9c02c0fe5
[INFO] running `"docker" "start" "-a" "7b40327f3db580e61fe48a468d73fb15a5f36d80efcb4295dd0159a9c02c0fe5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sysfs_rs-e2c908470d0e2d69
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sysfs-rs
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7b40327f3db580e61fe48a468d73fb15a5f36d80efcb4295dd0159a9c02c0fe5"`
[INFO] running `"docker" "rm" "-f" "7b40327f3db580e61fe48a468d73fb15a5f36d80efcb4295dd0159a9c02c0fe5"`
[INFO] [stdout] 7b40327f3db580e61fe48a468d73fb15a5f36d80efcb4295dd0159a9c02c0fe5