[INFO] fetching crate list-fn 0.18.0...
[INFO] testing list-fn-0.18.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate list-fn 0.18.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate list-fn 0.18.0 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 list-fn 0.18.0
[INFO] finished tweaking crates.io crate list-fn 0.18.0
[INFO] tweaked toml for crates.io crate list-fn 0.18.0 written to /workspace/builds/worker-13/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 11f3cf6ecee67c9d18436ae8d7af3330fbfadcf5766c2078237e88ebcfb091a5
[INFO] running `Command { std: "docker" "start" "-a" "11f3cf6ecee67c9d18436ae8d7af3330fbfadcf5766c2078237e88ebcfb091a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11f3cf6ecee67c9d18436ae8d7af3330fbfadcf5766c2078237e88ebcfb091a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11f3cf6ecee67c9d18436ae8d7af3330fbfadcf5766c2078237e88ebcfb091a5", kill_on_drop: false }`
[INFO] [stdout] 11f3cf6ecee67c9d18436ae8d7af3330fbfadcf5766c2078237e88ebcfb091a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 9f77212ba3dd42770c1b5b948ba7dee7659ef3026d88546272fa85b67d85fb21
[INFO] running `Command { std: "docker" "start" "-a" "9f77212ba3dd42770c1b5b948ba7dee7659ef3026d88546272fa85b67d85fb21", kill_on_drop: false }`
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling list-fn v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "9f77212ba3dd42770c1b5b948ba7dee7659ef3026d88546272fa85b67d85fb21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f77212ba3dd42770c1b5b948ba7dee7659ef3026d88546272fa85b67d85fb21", kill_on_drop: false }`
[INFO] [stdout] 9f77212ba3dd42770c1b5b948ba7dee7659ef3026d88546272fa85b67d85fb21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] ff919a11d9696a1b58e1d0f194421e202a2cfff79b1b9279a03459b8adeb4c44
[INFO] running `Command { std: "docker" "start" "-a" "ff919a11d9696a1b58e1d0f194421e202a2cfff79b1b9279a03459b8adeb4c44", kill_on_drop: false }`
[INFO] [stderr]    Compiling list-fn v0.18.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "ff919a11d9696a1b58e1d0f194421e202a2cfff79b1b9279a03459b8adeb4c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff919a11d9696a1b58e1d0f194421e202a2cfff79b1b9279a03459b8adeb4c44", kill_on_drop: false }`
[INFO] [stdout] ff919a11d9696a1b58e1d0f194421e202a2cfff79b1b9279a03459b8adeb4c44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 3382211bfd76740dbee7563b4a2a0a2a9bd1b3eda03619afea613ae6e38fd5df
[INFO] running `Command { std: "docker" "start" "-a" "3382211bfd76740dbee7563b4a2a0a2a9bd1b3eda03619afea613ae6e38fd5df", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/list_fn-b15c4df101173f08)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test flat_scan::tests::flat_scan_end ... ok
[INFO] [stdout] test tests::as_range ... ok
[INFO] [stdout] test tests::as_ref ... ok
[INFO] [stdout] test tests::foreach ... ok
[INFO] [stdout] test tests::option ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests list-fn
[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] running `Command { std: "docker" "inspect" "3382211bfd76740dbee7563b4a2a0a2a9bd1b3eda03619afea613ae6e38fd5df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3382211bfd76740dbee7563b4a2a0a2a9bd1b3eda03619afea613ae6e38fd5df", kill_on_drop: false }`
[INFO] [stdout] 3382211bfd76740dbee7563b4a2a0a2a9bd1b3eda03619afea613ae6e38fd5df