[INFO] crate file-lock 1.1.20 is already in cache [INFO] extracting crate file-lock 1.1.20 into work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/reg/file-lock/1.1.20 [INFO] extracting crate file-lock 1.1.20 into work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/reg/file-lock/1.1.20 [INFO] validating manifest of file-lock-1.1.20 on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of file-lock-1.1.20 on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-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-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/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-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/reg/file-lock/1.1.20/Cargo.toml [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking file-lock-1.1.20 against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-4/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 641edc1804b9110b42ff1c330c70cff84873af2efad644d5e18e87dc5aa783a6 [INFO] running `"docker" "start" "-a" "641edc1804b9110b42ff1c330c70cff84873af2efad644d5e18e87dc5aa783a6"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Compiling file-lock v1.1.20 (/opt/crater/workdir) [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 1.71s [INFO] running `"docker" "inspect" "641edc1804b9110b42ff1c330c70cff84873af2efad644d5e18e87dc5aa783a6"` [INFO] running `"docker" "rm" "-f" "641edc1804b9110b42ff1c330c70cff84873af2efad644d5e18e87dc5aa783a6"` [INFO] [stdout] 641edc1804b9110b42ff1c330c70cff84873af2efad644d5e18e87dc5aa783a6