[INFO] cloning repository https://github.com/natemcintosh/letter_box
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/natemcintosh/letter_box" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatemcintosh%2Fletter_box", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatemcintosh%2Fletter_box'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0920df71d963b32b9e9461f9e4801204c9eb63a2
[INFO] checking natemcintosh/letter_box against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnatemcintosh%2Fletter_box" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/natemcintosh/letter_box on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/natemcintosh/letter_box
[INFO] finished tweaking git repo https://github.com/natemcintosh/letter_box
[INFO] tweaked toml for git repo https://github.com/natemcintosh/letter_box written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/natemcintosh/letter_box 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" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca8dad7ed21cd0a05d04114cf364ec486e9e59d9380ae566b09abfe32a3bbdb3
[INFO] running `Command { std: "docker" "start" "-a" "ca8dad7ed21cd0a05d04114cf364ec486e9e59d9380ae566b09abfe32a3bbdb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca8dad7ed21cd0a05d04114cf364ec486e9e59d9380ae566b09abfe32a3bbdb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca8dad7ed21cd0a05d04114cf364ec486e9e59d9380ae566b09abfe32a3bbdb3", kill_on_drop: false }`
[INFO] [stdout] ca8dad7ed21cd0a05d04114cf364ec486e9e59d9380ae566b09abfe32a3bbdb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50263986b986d5053c8bb5a0b63492c0e5cb133c4c6a41ea679d7717d367bbc5
[INFO] running `Command { std: "docker" "start" "-a" "50263986b986d5053c8bb5a0b63492c0e5cb133c4c6a41ea679d7717d367bbc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v3.0.0
[INFO] [stderr]     Checking letter_box v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "50263986b986d5053c8bb5a0b63492c0e5cb133c4c6a41ea679d7717d367bbc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50263986b986d5053c8bb5a0b63492c0e5cb133c4c6a41ea679d7717d367bbc5", kill_on_drop: false }`
[INFO] [stdout] 50263986b986d5053c8bb5a0b63492c0e5cb133c4c6a41ea679d7717d367bbc5