[INFO] fetching crate monotonic-timer 1.0.0...
[INFO] testing monotonic-timer-1.0.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate monotonic-timer 1.0.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate monotonic-timer 1.0.0
[INFO] finished tweaking crates.io crate monotonic-timer 1.0.0
[INFO] tweaked toml for crates.io crate monotonic-timer 1.0.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate monotonic-timer 1.0.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2142a256b26608dbc7cfa3418e9c1021017aeb87e583d763034341d25679807d
[INFO] running `Command { std: "docker" "start" "-a" "2142a256b26608dbc7cfa3418e9c1021017aeb87e583d763034341d25679807d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2142a256b26608dbc7cfa3418e9c1021017aeb87e583d763034341d25679807d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2142a256b26608dbc7cfa3418e9c1021017aeb87e583d763034341d25679807d", kill_on_drop: false }`
[INFO] [stdout] 2142a256b26608dbc7cfa3418e9c1021017aeb87e583d763034341d25679807d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 297a0ec65c1cdd591aeb941214930893ec0910ab57bea6e87ff883bd671c39bd
[INFO] running `Command { std: "docker" "start" "-a" "297a0ec65c1cdd591aeb941214930893ec0910ab57bea6e87ff883bd671c39bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling monotonic-timer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:228:25
[INFO] [stdout]     |
[INFO] [stdout] 228 |                     let _ = waiter.condvar.wait(lock);
[INFO] [stdout]     |                         ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(let_underscore_lock)]` (part of `#[warn(let_underscore)]`) on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 228 |                     let _unused = waiter.condvar.wait(lock);
[INFO] [stdout]     |                          ++++++
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 228 -                     let _ = waiter.condvar.wait(lock);
[INFO] [stdout] 228 +                     drop(waiter.condvar.wait(lock));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "297a0ec65c1cdd591aeb941214930893ec0910ab57bea6e87ff883bd671c39bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "297a0ec65c1cdd591aeb941214930893ec0910ab57bea6e87ff883bd671c39bd", kill_on_drop: false }`
[INFO] [stdout] 297a0ec65c1cdd591aeb941214930893ec0910ab57bea6e87ff883bd671c39bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d24bc27fdccb78a2d7203e3bd9ac0afc7017a4c30ae7045032ba820c98d8c1ae
[INFO] running `Command { std: "docker" "start" "-a" "d24bc27fdccb78a2d7203e3bd9ac0afc7017a4c30ae7045032ba820c98d8c1ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling monotonic-timer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:228:25
[INFO] [stdout]     |
[INFO] [stdout] 228 |                     let _ = waiter.condvar.wait(lock);
[INFO] [stdout]     |                         ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(let_underscore_lock)]` (part of `#[warn(let_underscore)]`) on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 228 |                     let _unused = waiter.condvar.wait(lock);
[INFO] [stdout]     |                          ++++++
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 228 -                     let _ = waiter.condvar.wait(lock);
[INFO] [stdout] 228 +                     drop(waiter.condvar.wait(lock));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-binding let on a synchronization lock
[INFO] [stdout]    --> src/lib.rs:228:25
[INFO] [stdout]     |
[INFO] [stdout] 228 |                     let _ = waiter.condvar.wait(lock);
[INFO] [stdout]     |                         ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(let_underscore_lock)]` (part of `#[warn(let_underscore)]`) on by default
[INFO] [stdout] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 228 |                     let _unused = waiter.condvar.wait(lock);
[INFO] [stdout]     |                          ++++++
[INFO] [stdout] help: consider immediately dropping the value
[INFO] [stdout]     |
[INFO] [stdout] 228 -                     let _ = waiter.condvar.wait(lock);
[INFO] [stdout] 228 +                     drop(waiter.condvar.wait(lock));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "d24bc27fdccb78a2d7203e3bd9ac0afc7017a4c30ae7045032ba820c98d8c1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d24bc27fdccb78a2d7203e3bd9ac0afc7017a4c30ae7045032ba820c98d8c1ae", kill_on_drop: false }`
[INFO] [stdout] d24bc27fdccb78a2d7203e3bd9ac0afc7017a4c30ae7045032ba820c98d8c1ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4b8de294483a691480079650e3d0f9e2cc29d1e0fb0e95c50d3132b97c4e6409
[INFO] running `Command { std: "docker" "start" "-a" "4b8de294483a691480079650e3d0f9e2cc29d1e0fb0e95c50d3132b97c4e6409", kill_on_drop: false }`
[INFO] [stderr] warning: non-binding let on a synchronization lock
[INFO] [stderr]    --> src/lib.rs:228:25
[INFO] [stderr]     |
[INFO] [stderr] 228 |                     let _ = waiter.condvar.wait(lock);
[INFO] [stderr]     |                         ^ this lock is not assigned to a binding and is immediately dropped
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(let_underscore_lock)]` (part of `#[warn(let_underscore)]`) on by default
[INFO] [stderr] help: consider binding to an unused variable to avoid immediately dropping the value
[INFO] [stderr]     |
[INFO] [stderr] 228 |                     let _unused = waiter.condvar.wait(lock);
[INFO] [stderr]     |                          ++++++
[INFO] [stderr] help: consider immediately dropping the value
[INFO] [stderr]     |
[INFO] [stderr] 228 -                     let _ = waiter.condvar.wait(lock);
[INFO] [stderr] 228 +                     drop(waiter.condvar.wait(lock));
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `monotonic-timer` (lib) generated 1 warning (run `cargo fix --lib -p monotonic-timer` to apply 1 suggestion)
[INFO] [stderr] warning: `monotonic-timer` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/monotonic_timer-859f7d93de8fd00e)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_no_clone ... ok
[INFO] [stdout] test tests::test_message_timer ... ok
[INFO] [stdout] test tests::test_too_much_work ... ok
[INFO] [stdout] test tests::test_guard_ignore ... ok
[INFO] [stdout] test tests::test_guards ... ok
[INFO] [stderr]    Doc-tests monotonic_timer
[INFO] [stdout] test tests::test_schedule_with_delay ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 5.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - MessageTimer<T>::schedule_repeating (line 625) ... ok
[INFO] [stdout] test src/lib.rs - Timer::schedule_repeating (line 448) ... ok
[INFO] [stdout] test src/lib.rs - Timer::schedule_with_delay (line 400) ... ok
[INFO] [stdout] test src/lib.rs - MessageTimer<T>::schedule_with_delay (line 584) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4b8de294483a691480079650e3d0f9e2cc29d1e0fb0e95c50d3132b97c4e6409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8de294483a691480079650e3d0f9e2cc29d1e0fb0e95c50d3132b97c4e6409", kill_on_drop: false }`
[INFO] [stdout] 4b8de294483a691480079650e3d0f9e2cc29d1e0fb0e95c50d3132b97c4e6409