[INFO] crate file-lock 1.1.20 is already in cache [INFO] extracting crate file-lock 1.1.20 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/file-lock/1.1.20 [INFO] extracting crate file-lock 1.1.20 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/file-lock/1.1.20 [INFO] validating manifest of file-lock-1.1.20 on toolchain master#a850a426491e14186af2250549bf41256b5938d2 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of file-lock-1.1.20 on toolchain try#06a150c7d11500b41499224f165e9de1de096768 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing file-lock-1.1.20 [INFO] finished frobbing file-lock-1.1.20 [INFO] frobbed toml for file-lock-1.1.20 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/file-lock/1.1.20/Cargo.toml [INFO] started frobbing file-lock-1.1.20 [INFO] finished frobbing file-lock-1.1.20 [INFO] frobbed toml for file-lock-1.1.20 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/file-lock/1.1.20/Cargo.toml [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking file-lock-1.1.20 against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-7/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/file-lock/1.1.20:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 1def05a80909f4ba1fb83fddecba84833f4df4990fa8d8b5d4e4d32d5fcf68ce [INFO] running `"docker" "start" "-a" "1def05a80909f4ba1fb83fddecba84833f4df4990fa8d8b5d4e4d32d5fcf68ce"` [INFO] [stderr] Compiling file-lock v1.1.20 (/opt/crater/workdir) [INFO] [stderr] Checking mktemp v0.3.1 [INFO] [stderr] warning: use of deprecated item 'gcc::Build': crate has been renamed to `cc`, the `gcc` name is not maintained [INFO] [stderr] --> build.rs:4:3 [INFO] [stderr] | [INFO] [stderr] 4 | gcc::Build::new() [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'gcc::Build::new': crate has been renamed to `cc`, the `gcc` name is not maintained [INFO] [stderr] --> build.rs:4:3 [INFO] [stderr] | [INFO] [stderr] 4 | gcc::Build::new() [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:154:9 [INFO] [stderr] | [INFO] [stderr] 154 | self.unlock().is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:154:9 [INFO] [stderr] | [INFO] [stderr] 154 | self.unlock().is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:183:29 [INFO] [stderr] | [INFO] [stderr] 183 | remove_file(&filename).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:188:37 [INFO] [stderr] | [INFO] [stderr] 188 | / OpenOptions::new() [INFO] [stderr] 189 | | .write(true) [INFO] [stderr] 190 | | .create(true) [INFO] [stderr] 191 | | .open(&filename) [INFO] [stderr] 192 | | .is_ok(); [INFO] [stderr] | |_________________________________________________^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:209:57 [INFO] [stderr] | [INFO] [stderr] 209 | Some(lock) => { lock.unlock().is_ok(); }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::result::Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:276:29 [INFO] [stderr] | [INFO] [stderr] 276 | remove_file(&filename).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.49s [INFO] running `"docker" "inspect" "1def05a80909f4ba1fb83fddecba84833f4df4990fa8d8b5d4e4d32d5fcf68ce"` [INFO] running `"docker" "rm" "-f" "1def05a80909f4ba1fb83fddecba84833f4df4990fa8d8b5d4e4d32d5fcf68ce"` [INFO] [stdout] 1def05a80909f4ba1fb83fddecba84833f4df4990fa8d8b5d4e4d32d5fcf68ce