[INFO] fetching crate arc-guard 0.2.0...
[INFO] testing arc-guard-0.2.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate arc-guard 0.2.0 into /workspace/builds/worker-68/source
[INFO] validating manifest of crates.io crate arc-guard 0.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arc-guard 0.2.0
[INFO] finished tweaking crates.io crate arc-guard 0.2.0
[INFO] tweaked toml for crates.io crate arc-guard 0.2.0 written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bbef662f14438c668862ffacd4305973eabf4c378d3fd4ace9e86bd13f24e8a
[INFO] running `Command { std: "docker" "start" "-a" "9bbef662f14438c668862ffacd4305973eabf4c378d3fd4ace9e86bd13f24e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bbef662f14438c668862ffacd4305973eabf4c378d3fd4ace9e86bd13f24e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bbef662f14438c668862ffacd4305973eabf4c378d3fd4ace9e86bd13f24e8a", kill_on_drop: false }`
[INFO] [stdout] 9bbef662f14438c668862ffacd4305973eabf4c378d3fd4ace9e86bd13f24e8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e47da0677fb046b3c5b2b91dba1701d3ca49e4d6d24157c6b49efb48f4689fb6
[INFO] running `Command { std: "docker" "start" "-a" "e47da0677fb046b3c5b2b91dba1701d3ca49e4d6d24157c6b49efb48f4689fb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling arc-guard v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "e47da0677fb046b3c5b2b91dba1701d3ca49e4d6d24157c6b49efb48f4689fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47da0677fb046b3c5b2b91dba1701d3ca49e4d6d24157c6b49efb48f4689fb6", kill_on_drop: false }`
[INFO] [stdout] e47da0677fb046b3c5b2b91dba1701d3ca49e4d6d24157c6b49efb48f4689fb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7448d731ffa37b300ffc6647d6fcca0ade14c23b393b1940436f87af051c77ba
[INFO] running `Command { std: "docker" "start" "-a" "7448d731ffa37b300ffc6647d6fcca0ade14c23b393b1940436f87af051c77ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling arc-guard v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `indicator`
[INFO] [stdout]    --> src/lib.rs:139:41
[INFO] [stdout]     |
[INFO] [stdout] 139 |         let string = indicator.execute(|indicator| -> String {
[INFO] [stdout]     |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_indicator`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "7448d731ffa37b300ffc6647d6fcca0ade14c23b393b1940436f87af051c77ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7448d731ffa37b300ffc6647d6fcca0ade14c23b393b1940436f87af051c77ba", kill_on_drop: false }`
[INFO] [stdout] 7448d731ffa37b300ffc6647d6fcca0ade14c23b393b1940436f87af051c77ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9d9b437ff491c2f8aa4d46468e4fcb6267d36f245d670fb99caa0bba846cefae
[INFO] running `Command { std: "docker" "start" "-a" "9d9b437ff491c2f8aa4d46468e4fcb6267d36f245d670fb99caa0bba846cefae", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `indicator`
[INFO] [stderr]    --> src/lib.rs:139:41
[INFO] [stderr]     |
[INFO] [stderr] 139 |         let string = indicator.execute(|indicator| -> String {
[INFO] [stderr]     |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_indicator`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arc_guard-d77f41c7ecbb704a)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arc-guard
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - ArcGuard<T>::clone (line 113) ... FAILED
[INFO] [stdout] test src/lib.rs - ArcGuard<T>::arc (line 98) ... FAILED
[INFO] [stdout] test src/lib.rs - ArcGuard<T>::new (line 45) ... FAILED
[INFO] [stdout] test src/lib.rs - ArcGuard<T>::execute (line 78) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 22) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 8) ... FAILED
[INFO] [stdout] test src/lib.rs - ArcGuard<T>::execute (line 62) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - ArcGuard<T>::clone (line 113) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Indicator`
[INFO] [stdout]  --> src/lib.rs:116:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | let indicator = ArcGuard::new(Indicator::new());
[INFO] [stdout]   |                               ^^^^^^^^^ use of undeclared type `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - ArcGuard<T>::arc (line 98) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Indicator`
[INFO] [stdout]  --> src/lib.rs:101:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | let indicator = ArcGuard::new(Indicator::new());
[INFO] [stdout]   |                               ^^^^^^^^^ use of undeclared type `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - ArcGuard<T>::new (line 45) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Indicator`
[INFO] [stdout]  --> src/lib.rs:48:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | let indicator = ArcGuard::new(Indicator::new());
[INFO] [stdout]   |                               ^^^^^^^^^ use of undeclared type `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - ArcGuard<T>::execute (line 78) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Indicator`
[INFO] [stdout]  --> src/lib.rs:81:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | let indicator = ArcGuard::new(Indicator::new());
[INFO] [stdout]   |                               ^^^^^^^^^ use of undeclared type `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `something` found for struct `MutexGuard<'_, _>` in the current scope
[INFO] [stdout]   --> src/lib.rs:85:22
[INFO] [stdout]    |
[INFO] [stdout] 10 |     return indicator.something();
[INFO] [stdout]    |                      ^^^^^^^^^ method not found in `MutexGuard<'_, _>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `indicator` is a function, perhaps you wish to call it
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 22) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Indicator`
[INFO] [stdout]  --> src/lib.rs:25:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | let indicator = ArcGuard::new(Indicator::new());
[INFO] [stdout]   |                               ^^^^^^^^^ use of undeclared type `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `do_something` found for struct `MutexGuard<'_, _>` in the current scope
[INFO] [stdout]   --> src/lib.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     indicator.do_something();
[INFO] [stdout]    |               ^^^^^^^^^^^^ method not found in `MutexGuard<'_, _>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `indicator` is a function, perhaps you wish to call it
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 8) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Indicator`
[INFO] [stdout]  --> src/lib.rs:11:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | let indicator = Arc::new(Mutex::new(Indicator::new()));
[INFO] [stdout]   |                                     ^^^^^^^^^ use of undeclared type `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `do_something` found for struct `MutexGuard<'_, _>` in the current scope
[INFO] [stdout]  --> src/lib.rs:15:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | indicator_clone.do_something();
[INFO] [stdout]   |                 ^^^^^^^^^^^^ method not found in `MutexGuard<'_, _>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `indicator_clone` is a function, perhaps you wish to call it
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - ArcGuard<T>::execute (line 62) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Indicator`
[INFO] [stdout]  --> src/lib.rs:65:31
[INFO] [stdout]   |
[INFO] [stdout] 6 | let indicator = ArcGuard::new(Indicator::new());
[INFO] [stdout]   |                               ^^^^^^^^^ use of undeclared type `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `do_something` found for struct `MutexGuard<'_, _>` in the current scope
[INFO] [stdout]   --> src/lib.rs:69:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     indicator.do_something();
[INFO] [stdout]    |               ^^^^^^^^^^^^ method not found in `MutexGuard<'_, _>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `indicator` is a function, perhaps you wish to call it
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 22)
[INFO] [stdout]     src/lib.rs - (line 8)
[INFO] [stdout]     src/lib.rs - ArcGuard<T>::arc (line 98)
[INFO] [stdout]     src/lib.rs - ArcGuard<T>::clone (line 113)
[INFO] [stdout]     src/lib.rs - ArcGuard<T>::execute (line 62)
[INFO] [stdout]     src/lib.rs - ArcGuard<T>::execute (line 78)
[INFO] [stdout]     src/lib.rs - ArcGuard<T>::new (line 45)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 7 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "9d9b437ff491c2f8aa4d46468e4fcb6267d36f245d670fb99caa0bba846cefae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d9b437ff491c2f8aa4d46468e4fcb6267d36f245d670fb99caa0bba846cefae", kill_on_drop: false }`
[INFO] [stdout] 9d9b437ff491c2f8aa4d46468e4fcb6267d36f245d670fb99caa0bba846cefae
