[INFO] cloning repository https://github.com/nobleach/cc-2018-02-23
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nobleach/cc-2018-02-23" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnobleach%2Fcc-2018-02-23", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnobleach%2Fcc-2018-02-23'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd10ba5e02310e27c6181c88a4cc1cc21df2e38f
[INFO] testing nobleach/cc-2018-02-23 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnobleach%2Fcc-2018-02-23" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nobleach/cc-2018-02-23 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nobleach/cc-2018-02-23
[INFO] finished tweaking git repo https://github.com/nobleach/cc-2018-02-23
[INFO] tweaked toml for git repo https://github.com/nobleach/cc-2018-02-23 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nobleach/cc-2018-02-23 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 399c857a990e2f9407f74b1a53b9801b50add20e058abd0b3153867fd663c574
[INFO] running `Command { std: "docker" "start" "-a" "399c857a990e2f9407f74b1a53b9801b50add20e058abd0b3153867fd663c574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "399c857a990e2f9407f74b1a53b9801b50add20e058abd0b3153867fd663c574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "399c857a990e2f9407f74b1a53b9801b50add20e058abd0b3153867fd663c574", kill_on_drop: false }`
[INFO] [stdout] 399c857a990e2f9407f74b1a53b9801b50add20e058abd0b3153867fd663c574
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a46185845a16dc4100bc1cdcbd0d2180ca73466912312d35f213c040835e2a02
[INFO] running `Command { std: "docker" "start" "-a" "a46185845a16dc4100bc1cdcbd0d2180ca73466912312d35f213c040835e2a02", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-balanced-brackets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "a46185845a16dc4100bc1cdcbd0d2180ca73466912312d35f213c040835e2a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46185845a16dc4100bc1cdcbd0d2180ca73466912312d35f213c040835e2a02", kill_on_drop: false }`
[INFO] [stdout] a46185845a16dc4100bc1cdcbd0d2180ca73466912312d35f213c040835e2a02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dad83125be8b82866785b874ceda3fd107057b79767a94041008e9b53e39371
[INFO] running `Command { std: "docker" "start" "-a" "1dad83125be8b82866785b874ceda3fd107057b79767a94041008e9b53e39371", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-balanced-brackets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "1dad83125be8b82866785b874ceda3fd107057b79767a94041008e9b53e39371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dad83125be8b82866785b874ceda3fd107057b79767a94041008e9b53e39371", kill_on_drop: false }`
[INFO] [stdout] 1dad83125be8b82866785b874ceda3fd107057b79767a94041008e9b53e39371
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 770a67607786ecad1298e308f540833ebcaf538c77d4a2fcfefd365a31581c52
[INFO] running `Command { std: "docker" "start" "-a" "770a67607786ecad1298e308f540833ebcaf538c77d4a2fcfefd365a31581c52", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_balanced_brackets-347c9d44f50c5b71)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_is_balanced ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "770a67607786ecad1298e308f540833ebcaf538c77d4a2fcfefd365a31581c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "770a67607786ecad1298e308f540833ebcaf538c77d4a2fcfefd365a31581c52", kill_on_drop: false }`
[INFO] [stdout] 770a67607786ecad1298e308f540833ebcaf538c77d4a2fcfefd365a31581c52