[INFO] fetching crate possible 0.1.0...
[INFO] testing possible-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate possible 0.1.0 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate possible 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate possible 0.1.0
[INFO] finished tweaking crates.io crate possible 0.1.0
[INFO] tweaked toml for crates.io crate possible 0.1.0 written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd89c1919f8cb6271401658e71d922ab2ab617e4ad49aef4b2fd88ecdfac06bf
[INFO] running `Command { std: "docker" "start" "-a" "dd89c1919f8cb6271401658e71d922ab2ab617e4ad49aef4b2fd88ecdfac06bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd89c1919f8cb6271401658e71d922ab2ab617e4ad49aef4b2fd88ecdfac06bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd89c1919f8cb6271401658e71d922ab2ab617e4ad49aef4b2fd88ecdfac06bf", kill_on_drop: false }`
[INFO] [stdout] dd89c1919f8cb6271401658e71d922ab2ab617e4ad49aef4b2fd88ecdfac06bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ada45dcf5ca353e496abb9673b1c3ef40c1bcbf18f4902a426d66e23531bb95b
[INFO] running `Command { std: "docker" "start" "-a" "ada45dcf5ca353e496abb9673b1c3ef40c1bcbf18f4902a426d66e23531bb95b", kill_on_drop: false }`
[INFO] [stderr]    Compiling possible v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "ada45dcf5ca353e496abb9673b1c3ef40c1bcbf18f4902a426d66e23531bb95b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ada45dcf5ca353e496abb9673b1c3ef40c1bcbf18f4902a426d66e23531bb95b", kill_on_drop: false }`
[INFO] [stdout] ada45dcf5ca353e496abb9673b1c3ef40c1bcbf18f4902a426d66e23531bb95b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d7e559cc39d2b67ac7accd353b00d75a4994f5038c0937c3ef4f6260898e6f0
[INFO] running `Command { std: "docker" "start" "-a" "5d7e559cc39d2b67ac7accd353b00d75a4994f5038c0937c3ef4f6260898e6f0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling serde_yaml v0.8.23
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling ron v0.6.6
[INFO] [stderr]    Compiling pretty_assertions v0.7.2
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling serde_qs v0.8.5
[INFO] [stderr]    Compiling possible v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.98s
[INFO] running `Command { std: "docker" "inspect" "5d7e559cc39d2b67ac7accd353b00d75a4994f5038c0937c3ef4f6260898e6f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d7e559cc39d2b67ac7accd353b00d75a4994f5038c0937c3ef4f6260898e6f0", kill_on_drop: false }`
[INFO] [stdout] 5d7e559cc39d2b67ac7accd353b00d75a4994f5038c0937c3ef4f6260898e6f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bb0e2e1f27fc87543cddfb9b06461bf008fc3e293fa881f9f253040cc951e74b
[INFO] running `Command { std: "docker" "start" "-a" "bb0e2e1f27fc87543cddfb9b06461bf008fc3e293fa881f9f253040cc951e74b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/possible-b8a17c1275f073ba)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_json.rs (/opt/rustwide/target/debug/deps/serde_json-e12e27854ef200de)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test baseline_with_option::deserialization::with_option_missing ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_option_none ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_option_some ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_none ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_some ... ok
[INFO] [stdout] test with_possible::deserialization::with_no_field ... ok
[INFO] [stdout] test with_possible::deserialization::with_null_value ... ok
[INFO] [stdout] test with_possible::deserialization::with_some_value ... ok
[INFO] [stdout] test with_possible::serialization::with_no_field ... ok
[INFO] [stdout] test with_possible::serialization::with_null_value ... ok
[INFO] [stdout] test with_possible::serialization::with_some_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_ron.rs (/opt/rustwide/target/debug/deps/serde_ron-a0336a5c867090f9)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test baseline_with_option::deserialization::with_explicit_option_none ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_explicit_option_some ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_implicit_option_some ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_none ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_option_missing ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_some ... ok
[INFO] [stdout] test with_possible::deserialization::with_explicit_some_value ... ok
[INFO] [stdout] test with_possible::deserialization::with_implicit_some_value ... ok
[INFO] [stdout] test with_possible::deserialization::with_no_field ... ok
[INFO] [stdout] test with_possible::serialization::with_no_field ... ok
[INFO] [stdout] test with_possible::deserialization::with_null_value ... ok
[INFO] [stdout] test with_possible::serialization::with_null_value ... ok
[INFO] [stdout] test with_possible::serialization::with_some_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_toml.rs (/opt/rustwide/target/debug/deps/serde_toml-2ede242ba953a157)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test baseline_with_option::deserialization::with_option_missing ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_none ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_option_some ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_some ... ok
[INFO] [stdout] test with_possible::deserialization::with_no_field ... ok
[INFO] [stdout] test with_possible::deserialization::with_some_value ... ok
[INFO] [stdout] test with_possible::serialization::with_no_field ... ok
[INFO] [stdout] test with_possible::serialization::with_null_value ... ok
[INFO] [stdout] test with_possible::serialization::with_some_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_url.rs (/opt/rustwide/target/debug/deps/serde_url-9347c74ddb79a4c0)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test baseline_with_option::deserialization::with_option_missing ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_option_some ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_option_none ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_none ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_some ... ok
[INFO] [stdout] test with_possible::deserialization::with_no_field ... ok
[INFO] [stdout] test with_possible::deserialization::with_null_value ... ok
[INFO] [stdout] test with_possible::deserialization::with_some_value ... ok
[INFO] [stdout] test with_possible::serialization::with_no_field ... ok
[INFO] [stdout] test with_possible::serialization::with_some_value ... ok
[INFO] [stdout] test with_possible::serialization::with_null_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_yaml.rs (/opt/rustwide/target/debug/deps/serde_yaml-a61203a8875a9a06)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test baseline_with_option::deserialization::with_explicit_option_none ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_option_some ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_implicit_option_none ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_option_missing ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_none ... ok
[INFO] [stdout] test baseline_with_option::deserialization::with_shorthand_option_none ... ok
[INFO] [stdout] test baseline_with_option::serialization::with_option_some ... ok
[INFO] [stdout] test with_possible::deserialization::with_explicit_null_value ... ok
[INFO] [stdout] test with_possible::deserialization::with_implicit_null_value ... ok
[INFO] [stdout] test with_possible::deserialization::with_no_field ... ok
[INFO] [stdout] test with_possible::deserialization::with_shorthand_null_value ... ok
[INFO] [stdout] test with_possible::deserialization::with_some_value ... ok
[INFO] [stdout] test with_possible::serialization::with_no_field ... ok
[INFO] [stdout] test with_possible::serialization::with_null_value ... ok
[INFO] [stdout] test with_possible::serialization::with_some_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests possible
[INFO] [stdout] 
[INFO] [stdout] running 56 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name possible --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern doc_comment=/opt/rustwide/target/debug/deps/libdoc_comment-56b68f85102039e4.rlib --extern possible=/opt/rustwide/target/debug/deps/libpossible-5608995f51a30182.rlib --extern pretty_assertions=/opt/rustwide/target/debug/deps/libpretty_assertions-7416aa04f49c92e3.rlib --extern ron=/opt/rustwide/target/debug/deps/libron-85c40e1115cb5276.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-a4100abc2836712d.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-4b7c9d59d425f716.rlib --extern serde_qs=/opt/rustwide/target/debug/deps/libserde_qs-b8779135fc283214.rlib --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-1f94e98bb1fec8a6.rlib --extern toml=/opt/rustwide/target/debug/deps/libtoml-64ccdcded39d1947.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "bb0e2e1f27fc87543cddfb9b06461bf008fc3e293fa881f9f253040cc951e74b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb0e2e1f27fc87543cddfb9b06461bf008fc3e293fa881f9f253040cc951e74b", kill_on_drop: false }`
[INFO] [stdout] bb0e2e1f27fc87543cddfb9b06461bf008fc3e293fa881f9f253040cc951e74b