[INFO] fetching crate empty-option 0.1.1...
[INFO] testing empty-option-0.1.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate empty-option 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate empty-option 0.1.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate empty-option 0.1.1
[INFO] finished tweaking crates.io crate empty-option 0.1.1
[INFO] tweaked toml for crates.io crate empty-option 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8400dfdf9db870185221f3ea576e0709cff1d829995f71fee37984d3eb85a2f5
[INFO] running `Command { std: "docker" "start" "-a" "8400dfdf9db870185221f3ea576e0709cff1d829995f71fee37984d3eb85a2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8400dfdf9db870185221f3ea576e0709cff1d829995f71fee37984d3eb85a2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8400dfdf9db870185221f3ea576e0709cff1d829995f71fee37984d3eb85a2f5", kill_on_drop: false }`
[INFO] [stdout] 8400dfdf9db870185221f3ea576e0709cff1d829995f71fee37984d3eb85a2f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad9edcb3f29d77eceeceba50ad8b7bb3fe20f03b67d8ae2d1954cc057e4b902b
[INFO] running `Command { std: "docker" "start" "-a" "ad9edcb3f29d77eceeceba50ad8b7bb3fe20f03b67d8ae2d1954cc057e4b902b", kill_on_drop: false }`
[INFO] [stderr]    Compiling empty-option v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "ad9edcb3f29d77eceeceba50ad8b7bb3fe20f03b67d8ae2d1954cc057e4b902b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad9edcb3f29d77eceeceba50ad8b7bb3fe20f03b67d8ae2d1954cc057e4b902b", kill_on_drop: false }`
[INFO] [stdout] ad9edcb3f29d77eceeceba50ad8b7bb3fe20f03b67d8ae2d1954cc057e4b902b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15802fc79f6b83c32393453074e709c9c1e7e474a1ba6a17cbf8f068bfdd5599
[INFO] running `Command { std: "docker" "start" "-a" "15802fc79f6b83c32393453074e709c9c1e7e474a1ba6a17cbf8f068bfdd5599", kill_on_drop: false }`
[INFO] [stderr]    Compiling empty-option v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "15802fc79f6b83c32393453074e709c9c1e7e474a1ba6a17cbf8f068bfdd5599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15802fc79f6b83c32393453074e709c9c1e7e474a1ba6a17cbf8f068bfdd5599", kill_on_drop: false }`
[INFO] [stdout] 15802fc79f6b83c32393453074e709c9c1e7e474a1ba6a17cbf8f068bfdd5599
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f5d33c26dc3467cdc53699d7035bf3c58959058e1686b1fd5a5801854c819cde
[INFO] running `Command { std: "docker" "start" "-a" "f5d33c26dc3467cdc53699d7035bf3c58959058e1686b1fd5a5801854c819cde", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/empty_option-e9b240ed8682063b)
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::mut_and_release ... ok
[INFO] [stdout] test tests::catch_and_release ... ok
[INFO] [stdout] test tests::mut_and_keep ... ok
[INFO] [stdout] test tests::catch_from_none - should panic ... ok
[INFO] [stderr]    Doc-tests empty-option
[INFO] [stdout] test tests::mut_from_none - should panic ... ok
[INFO] [stdout] test tests::catch_and_keep - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - (line 46) ... FAILED
[INFO] [stdout] test src/lib.rs - OptionGuard (line 157) ... ok
[INFO] [stdout] test src/lib.rs - OptionGuardMut (line 246) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 99) ... FAILED
[INFO] [stdout] test src/lib.rs - OptionGuardMut (line 230) ... ok
[INFO] [stdout] test src/lib.rs - (line 63) ... ok
[INFO] [stdout] test src/lib.rs - (line 81) ... ok
[INFO] [stdout] test src/lib.rs - OptionGuardMut (line 213) ... ok
[INFO] [stdout] test src/lib.rs - OptionGuard (line 168) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stdout] test src/lib.rs - OptionGuard (line 135) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 46) stdout ----
[INFO] [stdout] error[E0599]: no method named `steal` found for enum `Option` in the current scope
[INFO] [stdout]  --> src/lib.rs:50:24
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (guard, _) = thing.steal();
[INFO] [stdout]   |                        ^^^^^ method not found in `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - OptionGuardMut (line 246) stdout ----
[INFO] [stdout] error[E0599]: no method named `steal_mut` found for enum `Option` in the current scope
[INFO] [stdout]  --> src/lib.rs:250:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | thing.steal_mut();
[INFO] [stdout]   |       ^^^^^^^^^ help: there is an associated function with a similar name: `iter_mut`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 99) stdout ----
[INFO] [stdout] error[E0599]: no method named `steal_mut` found for enum `Option` in the current scope
[INFO] [stdout]  --> src/lib.rs:103:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | thing.steal_mut();
[INFO] [stdout]   |       ^^^^^^^^^ help: there is an associated function with a similar name: `iter_mut`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - OptionGuard (line 168) stdout ----
[INFO] [stdout] error[E0599]: no method named `steal` found for enum `Option` in the current scope
[INFO] [stdout]  --> src/lib.rs:172:24
[INFO] [stdout]   |
[INFO] [stdout] 6 | let (guard, _) = thing.steal();
[INFO] [stdout]   |                        ^^^^^ method not found in `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 46)
[INFO] [stdout]     src/lib.rs - (line 99)
[INFO] [stdout]     src/lib.rs - OptionGuard (line 168)
[INFO] [stdout]     src/lib.rs - OptionGuardMut (line 246)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f5d33c26dc3467cdc53699d7035bf3c58959058e1686b1fd5a5801854c819cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d33c26dc3467cdc53699d7035bf3c58959058e1686b1fd5a5801854c819cde", kill_on_drop: false }`
[INFO] [stdout] f5d33c26dc3467cdc53699d7035bf3c58959058e1686b1fd5a5801854c819cde