[INFO] fetching crate file-lock 1.1.20... [INFO] building file-lock-1.1.20 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3 [INFO] extracting crate file-lock 1.1.20 into /workspace/builds/worker-39/source [INFO] validating manifest of crates.io crate file-lock 1.1.20 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate file-lock 1.1.20 [INFO] finished tweaking crates.io crate file-lock 1.1.20 [INFO] tweaked toml for crates.io crate file-lock 1.1.20 written to /workspace/builds/worker-39/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded mktemp v0.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eae52db9440d8c540a0df376e16a8196555a7709f6802c2563a7871545163723 [INFO] running `Command { std: "docker" "start" "-a" "eae52db9440d8c540a0df376e16a8196555a7709f6802c2563a7871545163723", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eae52db9440d8c540a0df376e16a8196555a7709f6802c2563a7871545163723", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eae52db9440d8c540a0df376e16a8196555a7709f6802c2563a7871545163723", kill_on_drop: false }` [INFO] [stdout] eae52db9440d8c540a0df376e16a8196555a7709f6802c2563a7871545163723 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 489e9275ab66c988089a918648b09284fa67ed02ccf9f91c1a8d39eba810dd8a [INFO] running `Command { std: "docker" "start" "-a" "489e9275ab66c988089a918648b09284fa67ed02ccf9f91c1a8d39eba810dd8a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.99 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Compiling nix v0.11.1 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling file-lock v1.1.20 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated struct `gcc::Build`: crate has been renamed to `cc`, the `gcc` name is not maintained [INFO] [stdout] --> build.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | gcc::Build::new() [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `gcc::Build::new`: crate has been renamed to `cc`, the `gcc` name is not maintained [INFO] [stdout] --> build.rs:4:15 [INFO] [stdout] | [INFO] [stdout] 4 | gcc::Build::new() [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling uuid v0.1.18 [INFO] [stderr] Compiling mktemp v0.3.1 [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:154:9 [INFO] [stdout] | [INFO] [stdout] 154 | self.unlock().is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.27s [INFO] running `Command { std: "docker" "inspect" "489e9275ab66c988089a918648b09284fa67ed02ccf9f91c1a8d39eba810dd8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "489e9275ab66c988089a918648b09284fa67ed02ccf9f91c1a8d39eba810dd8a", kill_on_drop: false }` [INFO] [stdout] 489e9275ab66c988089a918648b09284fa67ed02ccf9f91c1a8d39eba810dd8a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8c9797059595ab4ca21d70fe57f250dd4efa8c32aa1023ef0add17f1f50da930 [INFO] running `Command { std: "docker" "start" "-a" "8c9797059595ab4ca21d70fe57f250dd4efa8c32aa1023ef0add17f1f50da930", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] warning: use of deprecated struct `gcc::Build`: crate has been renamed to `cc`, the `gcc` name is not maintained [INFO] [stdout] --> build.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | gcc::Build::new() [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `gcc::Build::new`: crate has been renamed to `cc`, the `gcc` name is not maintained [INFO] [stdout] --> build.rs:4:15 [INFO] [stdout] | [INFO] [stdout] 4 | gcc::Build::new() [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling file-lock v1.1.20 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:154:9 [INFO] [stdout] | [INFO] [stdout] 154 | self.unlock().is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:154:9 [INFO] [stdout] | [INFO] [stdout] 154 | self.unlock().is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:183:29 [INFO] [stdout] | [INFO] [stdout] 183 | ... remove_file(&filename).is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:188:37 [INFO] [stdout] | [INFO] [stdout] 188 | / ... OpenOptions::new() [INFO] [stdout] 189 | | ... .write(true) [INFO] [stdout] 190 | | ... .create(true) [INFO] [stdout] 191 | | ... .open(&filename) [INFO] [stdout] 192 | | ... .is_ok(); [INFO] [stdout] | |___________________________________^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:209:57 [INFO] [stdout] | [INFO] [stdout] 209 | ... Some(lock) => { lock.unlock().is_ok(); }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:276:29 [INFO] [stdout] | [INFO] [stdout] 276 | ... remove_file(&filename).is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.63s [INFO] running `Command { std: "docker" "inspect" "8c9797059595ab4ca21d70fe57f250dd4efa8c32aa1023ef0add17f1f50da930", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c9797059595ab4ca21d70fe57f250dd4efa8c32aa1023ef0add17f1f50da930", kill_on_drop: false }` [INFO] [stdout] 8c9797059595ab4ca21d70fe57f250dd4efa8c32aa1023ef0add17f1f50da930