[INFO] cloning repository https://github.com/yl4869/learnrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yl4869/learnrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyl4869%2Flearnrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyl4869%2Flearnrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20306231fa8ca5c2fde024428839e70ef97aa905
[INFO] testing yl4869/learnrust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyl4869%2Flearnrust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  83% (471/562)
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Updating files: 100% (562/562), done.
[INFO] validating manifest of git repo https://github.com/yl4869/learnrust 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/yl4869/learnrust
[INFO] finished tweaking git repo https://github.com/yl4869/learnrust
[INFO] tweaked toml for git repo https://github.com/yl4869/learnrust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/yl4869/learnrust 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 9cee1a454bf0b1c95303998f8ffef52a8dd6c74f2ff05315a78fcdd1cf246dd3
[INFO] running `Command { std: "docker" "start" "-a" "9cee1a454bf0b1c95303998f8ffef52a8dd6c74f2ff05315a78fcdd1cf246dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cee1a454bf0b1c95303998f8ffef52a8dd6c74f2ff05315a78fcdd1cf246dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cee1a454bf0b1c95303998f8ffef52a8dd6c74f2ff05315a78fcdd1cf246dd3", kill_on_drop: false }`
[INFO] [stdout] 9cee1a454bf0b1c95303998f8ffef52a8dd6c74f2ff05315a78fcdd1cf246dd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 40321f2746157404c6c946d9ed879888ab1f1378d8c5e4bb73064ee1ac609918
[INFO] running `Command { std: "docker" "start" "-a" "40321f2746157404c6c946d9ed879888ab1f1378d8c5e4bb73064ee1ac609918", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "40321f2746157404c6c946d9ed879888ab1f1378d8c5e4bb73064ee1ac609918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40321f2746157404c6c946d9ed879888ab1f1378d8c5e4bb73064ee1ac609918", kill_on_drop: false }`
[INFO] [stdout] 40321f2746157404c6c946d9ed879888ab1f1378d8c5e4bb73064ee1ac609918
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 65ab16a25a134795f6b18442eebf6c3effbceeed696eb22a28491bfda0e93ae0
[INFO] running `Command { std: "docker" "start" "-a" "65ab16a25a134795f6b18442eebf6c3effbceeed696eb22a28491bfda0e93ae0", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "65ab16a25a134795f6b18442eebf6c3effbceeed696eb22a28491bfda0e93ae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ab16a25a134795f6b18442eebf6c3effbceeed696eb22a28491bfda0e93ae0", kill_on_drop: false }`
[INFO] [stdout] 65ab16a25a134795f6b18442eebf6c3effbceeed696eb22a28491bfda0e93ae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 7ca47e15d1ed64bccf6b58b2117f606052d256a6aea9b448ad56de09ccfdca13
[INFO] running `Command { std: "docker" "start" "-a" "7ca47e15d1ed64bccf6b58b2117f606052d256a6aea9b448ad56de09ccfdca13", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_cargo-2d2c1558816a00d9)
[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" "7ca47e15d1ed64bccf6b58b2117f606052d256a6aea9b448ad56de09ccfdca13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ca47e15d1ed64bccf6b58b2117f606052d256a6aea9b448ad56de09ccfdca13", kill_on_drop: false }`
[INFO] [stdout] 7ca47e15d1ed64bccf6b58b2117f606052d256a6aea9b448ad56de09ccfdca13