[INFO] fetching crate trailing_cell 0.3.0... [INFO] testing trailing_cell-0.3.0 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate trailing_cell 0.3.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate trailing_cell 0.3.0 on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate trailing_cell 0.3.0 [INFO] finished tweaking crates.io crate trailing_cell 0.3.0 [INFO] tweaked toml for crates.io crate trailing_cell 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 56079c8fd24a17527c22347f8d4c7de98c13d5ce4456c694dc9e3d4e99399a06 [INFO] running `Command { std: "docker" "start" "-a" "56079c8fd24a17527c22347f8d4c7de98c13d5ce4456c694dc9e3d4e99399a06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56079c8fd24a17527c22347f8d4c7de98c13d5ce4456c694dc9e3d4e99399a06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56079c8fd24a17527c22347f8d4c7de98c13d5ce4456c694dc9e3d4e99399a06", kill_on_drop: false }` [INFO] [stdout] 56079c8fd24a17527c22347f8d4c7de98c13d5ce4456c694dc9e3d4e99399a06 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 34a67b1a6a68f16e97ec81c53962290a69958c0dfa81b86f1fbaecd415fcce64 [INFO] running `Command { std: "docker" "start" "-a" "34a67b1a6a68f16e97ec81c53962290a69958c0dfa81b86f1fbaecd415fcce64", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling atomic-option v0.1.2 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling smallvec v0.6.14 [INFO] [stderr] Compiling parking_lot_core v0.2.14 [INFO] [stderr] Compiling bus v1.4.1 [INFO] [stderr] Compiling trailing_cell v0.3.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.13s [INFO] running `Command { std: "docker" "inspect" "34a67b1a6a68f16e97ec81c53962290a69958c0dfa81b86f1fbaecd415fcce64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34a67b1a6a68f16e97ec81c53962290a69958c0dfa81b86f1fbaecd415fcce64", kill_on_drop: false }` [INFO] [stdout] 34a67b1a6a68f16e97ec81c53962290a69958c0dfa81b86f1fbaecd415fcce64 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4c7a3cd147d8a2721e2bacaf51280b85328aba745630f122bdb4a618431243b2 [INFO] running `Command { std: "docker" "start" "-a" "4c7a3cd147d8a2721e2bacaf51280b85328aba745630f122bdb4a618431243b2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling trailing_cell v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/tests.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | h.join().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/tests.rs:103:5 [INFO] [stdout] | [INFO] [stdout] 103 | h1.join().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/tests.rs:104:5 [INFO] [stdout] | [INFO] [stdout] 104 | h2.join().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: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.03s [INFO] running `Command { std: "docker" "inspect" "4c7a3cd147d8a2721e2bacaf51280b85328aba745630f122bdb4a618431243b2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c7a3cd147d8a2721e2bacaf51280b85328aba745630f122bdb4a618431243b2", kill_on_drop: false }` [INFO] [stdout] 4c7a3cd147d8a2721e2bacaf51280b85328aba745630f122bdb4a618431243b2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1926f5ac711fdc15998ffd616f9315bb83e25db2188241d9fe153db7dc32d1c0 [INFO] running `Command { std: "docker" "start" "-a" "1926f5ac711fdc15998ffd616f9315bb83e25db2188241d9fe153db7dc32d1c0", kill_on_drop: false }` [INFO] [stderr] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stderr] --> src/tests.rs:77:9 [INFO] [stderr] | [INFO] [stderr] 77 | h.join().is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stderr] --> src/tests.rs:103:5 [INFO] [stderr] | [INFO] [stderr] 103 | h1.join().is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stderr] --> src/tests.rs:104:5 [INFO] [stderr] | [INFO] [stderr] 104 | h2.join().is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] [INFO] [stderr] warning: `trailing_cell` (lib test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/trailing_cell-d1d5125ae4da748c) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test tests::deref ... ok [INFO] [stdout] test tests::deref_mut ... ok [INFO] [stdout] test tests::staleness ... ok [INFO] [stdout] test tests::wrapping_unwrapping ... ok [INFO] [stdout] test tests::limited_sync ... ok [INFO] [stderr] Doc-tests trailing_cell [INFO] [stdout] test tests::w1_r1_multithreaded ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s [INFO] [stdout] [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1926f5ac711fdc15998ffd616f9315bb83e25db2188241d9fe153db7dc32d1c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1926f5ac711fdc15998ffd616f9315bb83e25db2188241d9fe153db7dc32d1c0", kill_on_drop: false }` [INFO] [stdout] 1926f5ac711fdc15998ffd616f9315bb83e25db2188241d9fe153db7dc32d1c0