[INFO] crate arc-guard 0.2.0 is already in cache
[INFO] testing arc-guard-0.2.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate arc-guard 0.2.0 into work/builds/worker-6/source
[INFO] validating manifest of crates.io crate arc-guard 0.2.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 work/builds/worker-6/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] e6de1ec636c102239ef760384553f293e632a3f8eff3a956cc33d1577a9a5731
[INFO] running `"docker" "start" "-a" "e6de1ec636c102239ef760384553f293e632a3f8eff3a956cc33d1577a9a5731"`
[INFO] [stderr]    Compiling arc-guard v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `"docker" "inspect" "e6de1ec636c102239ef760384553f293e632a3f8eff3a956cc33d1577a9a5731"`
[INFO] running `"docker" "rm" "-f" "e6de1ec636c102239ef760384553f293e632a3f8eff3a956cc33d1577a9a5731"`
[INFO] [stdout] e6de1ec636c102239ef760384553f293e632a3f8eff3a956cc33d1577a9a5731
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f38b7aed0f81e2e7e2580351a4ba078617adbb776e025cc15561fe1cde3ecc6f
[INFO] running `"docker" "start" "-a" "f38b7aed0f81e2e7e2580351a4ba078617adbb776e025cc15561fe1cde3ecc6f"`
[INFO] [stderr]    Compiling arc-guard v0.2.0 (/opt/rustwide/workdir)
[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: consider prefixing with an underscore: `_indicator`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "f38b7aed0f81e2e7e2580351a4ba078617adbb776e025cc15561fe1cde3ecc6f"`
[INFO] running `"docker" "rm" "-f" "f38b7aed0f81e2e7e2580351a4ba078617adbb776e025cc15561fe1cde3ecc6f"`
[INFO] [stdout] f38b7aed0f81e2e7e2580351a4ba078617adbb776e025cc15561fe1cde3ecc6f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] d8094da30f751e5807c95cc6329d7e7162fe39fca9b7c9c7a39183e3b3b6eebf
[INFO] running `"docker" "start" "-a" "d8094da30f751e5807c95cc6329d7e7162fe39fca9b7c9c7a39183e3b3b6eebf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/arc_guard-9aba3d8971fab5e2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests arc-guard
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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>::new (line 45) ... FAILED
[INFO] [stdout] test src/lib.rs - ArcGuard<T>::arc (line 98) ... 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 78) ... 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 or module `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 or module `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 or module `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 or module `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 or module `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 or module `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 -  (line 22) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 or module `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `do_something` found for type `std::sync::MutexGuard<'_, _>` in the current scope
[INFO] [stdout]   --> src/lib.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     indicator.do_something();
[INFO] [stdout]    |               ^^^^^^^^^^^^
[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 or module `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 or module `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `do_something` found for type `std::sync::MutexGuard<'_, _>` in the current scope
[INFO] [stdout]  --> src/lib.rs:15:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | indicator_clone.do_something();
[INFO] [stdout]   |                 ^^^^^^^^^^^^
[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 78) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 or module `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `something` found for type `std::sync::MutexGuard<'_, _>` in the current scope
[INFO] [stdout]   --> src/lib.rs:85:22
[INFO] [stdout]    |
[INFO] [stdout] 10 |     return indicator.something();
[INFO] [stdout]    |                      ^^^^^^^^^
[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 - ArcGuard<T>::execute (line 62) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 or module `Indicator`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `do_something` found for type `std::sync::MutexGuard<'_, _>` in the current scope
[INFO] [stdout]   --> src/lib.rs:69:15
[INFO] [stdout]    |
[INFO] [stdout] 10 |     indicator.do_something();
[INFO] [stdout]    |               ^^^^^^^^^^^^
[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
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "d8094da30f751e5807c95cc6329d7e7162fe39fca9b7c9c7a39183e3b3b6eebf"`
[INFO] running `"docker" "rm" "-f" "d8094da30f751e5807c95cc6329d7e7162fe39fca9b7c9c7a39183e3b3b6eebf"`
[INFO] [stdout] d8094da30f751e5807c95cc6329d7e7162fe39fca9b7c9c7a39183e3b3b6eebf