[INFO] cloning repository https://github.com/CampoDiFiori/doubly-linked-list-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CampoDiFiori/doubly-linked-list-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCampoDiFiori%2Fdoubly-linked-list-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCampoDiFiori%2Fdoubly-linked-list-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cde3edee757ac05d06308fd48385783740f79f6
[INFO] testing CampoDiFiori/doubly-linked-list-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCampoDiFiori%2Fdoubly-linked-list-rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CampoDiFiori/doubly-linked-list-rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CampoDiFiori/doubly-linked-list-rust
[INFO] finished tweaking git repo https://github.com/CampoDiFiori/doubly-linked-list-rust
[INFO] tweaked toml for git repo https://github.com/CampoDiFiori/doubly-linked-list-rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/CampoDiFiori/doubly-linked-list-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ca45755872821c553a2de0cbeb74b3e7c5948dd5b2bf26e077da4330565a7e2
[INFO] running `Command { std: "docker" "start" "-a" "9ca45755872821c553a2de0cbeb74b3e7c5948dd5b2bf26e077da4330565a7e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ca45755872821c553a2de0cbeb74b3e7c5948dd5b2bf26e077da4330565a7e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ca45755872821c553a2de0cbeb74b3e7c5948dd5b2bf26e077da4330565a7e2", kill_on_drop: false }`
[INFO] [stdout] 9ca45755872821c553a2de0cbeb74b3e7c5948dd5b2bf26e077da4330565a7e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 884565db295aacbe05d228f43a918a25d7baad37fd3654bef7171205a2ee9b03
[INFO] running `Command { std: "docker" "start" "-a" "884565db295aacbe05d228f43a918a25d7baad37fd3654bef7171205a2ee9b03", kill_on_drop: false }`
[INFO] [stderr]    Compiling doubly-linked-list-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "884565db295aacbe05d228f43a918a25d7baad37fd3654bef7171205a2ee9b03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "884565db295aacbe05d228f43a918a25d7baad37fd3654bef7171205a2ee9b03", kill_on_drop: false }`
[INFO] [stdout] 884565db295aacbe05d228f43a918a25d7baad37fd3654bef7171205a2ee9b03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 374d40af7a598e77c9851902a25605f47f193d39afe3d6e5ebdd91be05fe5921
[INFO] running `Command { std: "docker" "start" "-a" "374d40af7a598e77c9851902a25605f47f193d39afe3d6e5ebdd91be05fe5921", kill_on_drop: false }`
[INFO] [stderr]    Compiling doubly-linked-list-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "374d40af7a598e77c9851902a25605f47f193d39afe3d6e5ebdd91be05fe5921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "374d40af7a598e77c9851902a25605f47f193d39afe3d6e5ebdd91be05fe5921", kill_on_drop: false }`
[INFO] [stdout] 374d40af7a598e77c9851902a25605f47f193d39afe3d6e5ebdd91be05fe5921
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 90919d4a6fbb66c73b675feb1e3fd3e3057aea0c6f0e0991efe6c8b3ab2cf37b
[INFO] running `Command { std: "docker" "start" "-a" "90919d4a6fbb66c73b675feb1e3fd3e3057aea0c6f0e0991efe6c8b3ab2cf37b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/doubly_linked_list_rust-69d41b00a7611828)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test contains_test ... ok
[INFO] [stdout] test insert_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "90919d4a6fbb66c73b675feb1e3fd3e3057aea0c6f0e0991efe6c8b3ab2cf37b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90919d4a6fbb66c73b675feb1e3fd3e3057aea0c6f0e0991efe6c8b3ab2cf37b", kill_on_drop: false }`
[INFO] [stdout] 90919d4a6fbb66c73b675feb1e3fd3e3057aea0c6f0e0991efe6c8b3ab2cf37b