[INFO] fetching crate arc-guard 0.2.0...
[INFO] testing arc-guard-0.2.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate arc-guard 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate arc-guard 0.2.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2cd89f13b26d3a0a66898273d712d9516f0bf63a1b520902d9655705a9237689
[INFO] running `Command { std: "docker" "start" "-a" "2cd89f13b26d3a0a66898273d712d9516f0bf63a1b520902d9655705a9237689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cd89f13b26d3a0a66898273d712d9516f0bf63a1b520902d9655705a9237689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cd89f13b26d3a0a66898273d712d9516f0bf63a1b520902d9655705a9237689", kill_on_drop: false }`
[INFO] [stdout] 2cd89f13b26d3a0a66898273d712d9516f0bf63a1b520902d9655705a9237689
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f675332ea0d1b3eca04a5c99982371ffe28deb3f957e6d7cfe88dd95fe20acf8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f675332ea0d1b3eca04a5c99982371ffe28deb3f957e6d7cfe88dd95fe20acf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling arc-guard v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "f675332ea0d1b3eca04a5c99982371ffe28deb3f957e6d7cfe88dd95fe20acf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f675332ea0d1b3eca04a5c99982371ffe28deb3f957e6d7cfe88dd95fe20acf8", kill_on_drop: false }`
[INFO] [stdout] f675332ea0d1b3eca04a5c99982371ffe28deb3f957e6d7cfe88dd95fe20acf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 785c75dd93426f75d334a915fe15a929f928d39f9ec724f3a25cd6a6748a829e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "785c75dd93426f75d334a915fe15a929f928d39f9ec724f3a25cd6a6748a829e", 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 0.47s
[INFO] running `Command { std: "docker" "inspect" "785c75dd93426f75d334a915fe15a929f928d39f9ec724f3a25cd6a6748a829e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785c75dd93426f75d334a915fe15a929f928d39f9ec724f3a25cd6a6748a829e", kill_on_drop: false }`
[INFO] [stdout] 785c75dd93426f75d334a915fe15a929f928d39f9ec724f3a25cd6a6748a829e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9a0d09587f35243fb2cb788c411310bef13af96d7fd67e181eb0a7636117b487
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9a0d09587f35243fb2cb788c411310bef13af96d7fd67e181eb0a7636117b487", 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 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/arc_guard-9d48501ef3465b9d
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arc-guard
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[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 - ArcGuard<T>::execute (line 62) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 8) ... FAILED
[INFO] [stdout] test src/lib.rs - ArcGuard<T>::clone (line 113) ... FAILED
[INFO] [stdout] test src/lib.rs - ArcGuard<T>::execute (line 78) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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 struct `std::sync::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 `std::sync::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 - 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 struct `std::sync::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 `std::sync::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 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 struct `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]   |                 ^^^^^^^^^^^^ method not found in `std::sync::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>::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>::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 struct `std::sync::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 `std::sync::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
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "9a0d09587f35243fb2cb788c411310bef13af96d7fd67e181eb0a7636117b487", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a0d09587f35243fb2cb788c411310bef13af96d7fd67e181eb0a7636117b487", kill_on_drop: false }`
[INFO] [stdout] 9a0d09587f35243fb2cb788c411310bef13af96d7fd67e181eb0a7636117b487
