[INFO] cloning repository https://github.com/iansudderth/rust_linked_lists
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iansudderth/rust_linked_lists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiansudderth%2Frust_linked_lists", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiansudderth%2Frust_linked_lists'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10b5cf8b9830c35c3d436d43959231829b3d409b
[INFO] testing iansudderth/rust_linked_lists against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiansudderth%2Frust_linked_lists" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iansudderth/rust_linked_lists on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iansudderth/rust_linked_lists
[INFO] finished tweaking git repo https://github.com/iansudderth/rust_linked_lists
[INFO] tweaked toml for git repo https://github.com/iansudderth/rust_linked_lists written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/iansudderth/rust_linked_lists already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2317a895b2b5358214a83351943ba639eabc8fce525e76c8c6448b931558fdd4
[INFO] running `Command { std: "docker" "start" "-a" "2317a895b2b5358214a83351943ba639eabc8fce525e76c8c6448b931558fdd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2317a895b2b5358214a83351943ba639eabc8fce525e76c8c6448b931558fdd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2317a895b2b5358214a83351943ba639eabc8fce525e76c8c6448b931558fdd4", kill_on_drop: false }`
[INFO] [stdout] 2317a895b2b5358214a83351943ba639eabc8fce525e76c8c6448b931558fdd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcccc336ccb02cb1da9d6cb1befd82de1bf2a2fd3e6f9cc540b636f8b3b0af1a
[INFO] running `Command { std: "docker" "start" "-a" "fcccc336ccb02cb1da9d6cb1befd82de1bf2a2fd3e6f9cc540b636f8b3b0af1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_with_linked_lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "fcccc336ccb02cb1da9d6cb1befd82de1bf2a2fd3e6f9cc540b636f8b3b0af1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcccc336ccb02cb1da9d6cb1befd82de1bf2a2fd3e6f9cc540b636f8b3b0af1a", kill_on_drop: false }`
[INFO] [stdout] fcccc336ccb02cb1da9d6cb1befd82de1bf2a2fd3e6f9cc540b636f8b3b0af1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 828e940c5d6cd48aa9a500369b7b777ec3a4833f70971727ca3655cfa6a2ab82
[INFO] running `Command { std: "docker" "start" "-a" "828e940c5d6cd48aa9a500369b7b777ec3a4833f70971727ca3655cfa6a2ab82", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_with_linked_lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "828e940c5d6cd48aa9a500369b7b777ec3a4833f70971727ca3655cfa6a2ab82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "828e940c5d6cd48aa9a500369b7b777ec3a4833f70971727ca3655cfa6a2ab82", kill_on_drop: false }`
[INFO] [stdout] 828e940c5d6cd48aa9a500369b7b777ec3a4833f70971727ca3655cfa6a2ab82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2cb01d980b2d6887f57a94662454f21ed6384a877c2feaa8e48a1bae5df9ba9a
[INFO] running `Command { std: "docker" "start" "-a" "2cb01d980b2d6887f57a94662454f21ed6384a877c2feaa8e48a1bae5df9ba9a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 8 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_with_linked_lists-7126af653a4859af)
[INFO] [stdout] test second::test::into_iter ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_with_linked_lists-bcdfc9aacf931c83)
[INFO] [stdout] test second::test::peek ... ok
[INFO] [stdout] test first::test::basics ... ok
[INFO] [stdout] test third::test::basics ... ok
[INFO] [stdout] test second::test::iter ... ok
[INFO] [stdout] test second::test::basics ... ok
[INFO] [stdout] test third::test::iter ... ok
[INFO] [stdout] test second::test::iter_mut ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_with_linked_lists
[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] [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" "2cb01d980b2d6887f57a94662454f21ed6384a877c2feaa8e48a1bae5df9ba9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cb01d980b2d6887f57a94662454f21ed6384a877c2feaa8e48a1bae5df9ba9a", kill_on_drop: false }`
[INFO] [stdout] 2cb01d980b2d6887f57a94662454f21ed6384a877c2feaa8e48a1bae5df9ba9a