[INFO] cloning repository https://github.com/matharp/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matharp/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatharp%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatharp%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 449c766ac52ed2be6f1a2cff004237a95ebbc440
[INFO] checking matharp/learn-rust against try#19b19c1ea5b23336f439d5f7be1cc1b3f1220bef for pr-112999
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatharp%2Flearn-rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matharp/learn-rust on toolchain 19b19c1ea5b23336f439d5f7be1cc1b3f1220bef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19b19c1ea5b23336f439d5f7be1cc1b3f1220bef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matharp/learn-rust
[INFO] finished tweaking git repo https://github.com/matharp/learn-rust
[INFO] tweaked toml for git repo https://github.com/matharp/learn-rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/matharp/learn-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19b19c1ea5b23336f439d5f7be1cc1b3f1220bef" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+19b19c1ea5b23336f439d5f7be1cc1b3f1220bef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 053fc527871cce1e0e4bcbab998080bea0d45fe6ba89e0be75615719a2ff5e80
[INFO] running `Command { std: "docker" "start" "-a" "053fc527871cce1e0e4bcbab998080bea0d45fe6ba89e0be75615719a2ff5e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "053fc527871cce1e0e4bcbab998080bea0d45fe6ba89e0be75615719a2ff5e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "053fc527871cce1e0e4bcbab998080bea0d45fe6ba89e0be75615719a2ff5e80", kill_on_drop: false }`
[INFO] [stdout] 053fc527871cce1e0e4bcbab998080bea0d45fe6ba89e0be75615719a2ff5e80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+19b19c1ea5b23336f439d5f7be1cc1b3f1220bef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fe0151d440c68951075f8fad71d3f9ed777626aa1251382f378dba27a988c7e
[INFO] running `Command { std: "docker" "start" "-a" "2fe0151d440c68951075f8fad71d3f9ed777626aa1251382f378dba27a988c7e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking hello-world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "2fe0151d440c68951075f8fad71d3f9ed777626aa1251382f378dba27a988c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe0151d440c68951075f8fad71d3f9ed777626aa1251382f378dba27a988c7e", kill_on_drop: false }`
[INFO] [stdout] 2fe0151d440c68951075f8fad71d3f9ed777626aa1251382f378dba27a988c7e