[INFO] fetching crate studyhall 999999999.999999999.999999999...
[INFO] checking studyhall-999999999.999999999.999999999 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate studyhall 999999999.999999999.999999999 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate studyhall 999999999.999999999.999999999 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate studyhall 999999999.999999999.999999999
[INFO] finished tweaking crates.io crate studyhall 999999999.999999999.999999999
[INFO] tweaked toml for crates.io crate studyhall 999999999.999999999.999999999 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate studyhall 999999999.999999999.999999999 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1873f2a0ea397f995c191b2e8f76b9773f4482a6185ad9b282b5f85f778ca99
[INFO] running `Command { std: "docker" "start" "-a" "a1873f2a0ea397f995c191b2e8f76b9773f4482a6185ad9b282b5f85f778ca99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1873f2a0ea397f995c191b2e8f76b9773f4482a6185ad9b282b5f85f778ca99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1873f2a0ea397f995c191b2e8f76b9773f4482a6185ad9b282b5f85f778ca99", kill_on_drop: false }`
[INFO] [stdout] a1873f2a0ea397f995c191b2e8f76b9773f4482a6185ad9b282b5f85f778ca99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0e6942e222ab6d2725985dcfadd2f172e4571a60c91647c17fff1d5715f955b
[INFO] running `Command { std: "docker" "start" "-a" "b0e6942e222ab6d2725985dcfadd2f172e4571a60c91647c17fff1d5715f955b", kill_on_drop: false }`
[INFO] [stderr]     Checking studyhall v999999999.999999999.999999999 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "b0e6942e222ab6d2725985dcfadd2f172e4571a60c91647c17fff1d5715f955b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e6942e222ab6d2725985dcfadd2f172e4571a60c91647c17fff1d5715f955b", kill_on_drop: false }`
[INFO] [stdout] b0e6942e222ab6d2725985dcfadd2f172e4571a60c91647c17fff1d5715f955b