[INFO] fetching crate treacle 0.1.0...
[INFO] testing treacle-0.1.0 against 1.95.0 for beta-1.96-3
[INFO] extracting crate treacle 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate treacle 0.1.0
[INFO] finished tweaking crates.io crate treacle 0.1.0
[INFO] tweaked toml for crates.io crate treacle 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate treacle 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate treacle 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a386c4c97f63cde0c224fa38f5c912fdc095ff60bb128a95625fb106654785c
[INFO] running `Command { std: "docker" "start" "-a" "2a386c4c97f63cde0c224fa38f5c912fdc095ff60bb128a95625fb106654785c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a386c4c97f63cde0c224fa38f5c912fdc095ff60bb128a95625fb106654785c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a386c4c97f63cde0c224fa38f5c912fdc095ff60bb128a95625fb106654785c", kill_on_drop: false }`
[INFO] [stdout] 2a386c4c97f63cde0c224fa38f5c912fdc095ff60bb128a95625fb106654785c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1790d80e2c2f12c82588787e3dc99656dbc7d1e155d91f452eb6f8e660b10ba1
[INFO] running `Command { std: "docker" "start" "-a" "1790d80e2c2f12c82588787e3dc99656dbc7d1e155d91f452eb6f8e660b10ba1", kill_on_drop: false }`
[INFO] [stderr]    Compiling treacle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:383:19
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn lock_state(&self) -> MutexGuard<DebouncerState<T>> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn lock_state(&self) -> MutexGuard<'_, DebouncerState<T>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "1790d80e2c2f12c82588787e3dc99656dbc7d1e155d91f452eb6f8e660b10ba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1790d80e2c2f12c82588787e3dc99656dbc7d1e155d91f452eb6f8e660b10ba1", kill_on_drop: false }`
[INFO] [stdout] 1790d80e2c2f12c82588787e3dc99656dbc7d1e155d91f452eb6f8e660b10ba1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb959da421eb10cb14e20b0ff41775e1149ab5f6360a4e4b772c2c2ab1a81fa9
[INFO] running `Command { std: "docker" "start" "-a" "eb959da421eb10cb14e20b0ff41775e1149ab5f6360a4e4b772c2c2ab1a81fa9", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:383:19
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn lock_state(&self) -> MutexGuard<DebouncerState<T>> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn lock_state(&self) -> MutexGuard<'_, DebouncerState<T>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling treacle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:383:19
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn lock_state(&self) -> MutexGuard<DebouncerState<T>> {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn lock_state(&self) -> MutexGuard<'_, DebouncerState<T>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "eb959da421eb10cb14e20b0ff41775e1149ab5f6360a4e4b772c2c2ab1a81fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb959da421eb10cb14e20b0ff41775e1149ab5f6360a4e4b772c2c2ab1a81fa9", kill_on_drop: false }`
[INFO] [stdout] eb959da421eb10cb14e20b0ff41775e1149ab5f6360a4e4b772c2c2ab1a81fa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7511dd1c04ff1f9a02db01b41fe70547dbbb4970aeca5685c7d06fa4bfc2557c
[INFO] running `Command { std: "docker" "start" "-a" "7511dd1c04ff1f9a02db01b41fe70547dbbb4970aeca5685c7d06fa4bfc2557c", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:383:19
[INFO] [stderr]     |
[INFO] [stderr] 383 |     fn lock_state(&self) -> MutexGuard<DebouncerState<T>> {
[INFO] [stderr]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 383 |     fn lock_state(&self) -> MutexGuard<'_, DebouncerState<T>> {
[INFO] [stderr]     |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: `treacle` (lib) generated 1 warning (run `cargo fix --lib -p treacle` to apply 1 suggestion)
[INFO] [stderr] warning: `treacle` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/treacle-c1a4777b9d6ec566)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_debouncer_shutdown ... ok
[INFO] [stdout] test tests::test_debounce ... ok
[INFO] [stdout] test tests::test_multi_rx ... ok
[INFO] [stdout] test tests::test_multi_tx ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests treacle
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/fold.rs - fold::fold_unit (line 32) ... ok
[INFO] [stdout] test src/fold.rs - fold::fold_vec_push (line 6) ... ok
[INFO] [stdout] test src/lib.rs - debouncer (line 72) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - DebouncerRx<D>::try_recv (line 289) ... ok
[INFO] [stdout] test src/lib.rs - DebouncerTx<R,D,F>::send (line 140) ... ok
[INFO] [stdout] test src/lib.rs - DebouncerRx<D>::recv (line 231) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7511dd1c04ff1f9a02db01b41fe70547dbbb4970aeca5685c7d06fa4bfc2557c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7511dd1c04ff1f9a02db01b41fe70547dbbb4970aeca5685c7d06fa4bfc2557c", kill_on_drop: false }`
[INFO] [stdout] 7511dd1c04ff1f9a02db01b41fe70547dbbb4970aeca5685c7d06fa4bfc2557c