[INFO] fetching crate contest-algorithms 0.3.0...
[INFO] checking contest-algorithms-0.3.0 against master#e652caa679a304af11fc04f1f12452f255a82593 for pr-98000
[INFO] extracting crate contest-algorithms 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate contest-algorithms 0.3.0 on toolchain e652caa679a304af11fc04f1f12452f255a82593
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate contest-algorithms 0.3.0
[INFO] finished tweaking crates.io crate contest-algorithms 0.3.0
[INFO] tweaked toml for crates.io crate contest-algorithms 0.3.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7848779d1bef7a7165d443dee4ba34cfd956cc66e1928f70b74a23a6365c1ef6
[INFO] running `Command { std: "docker" "start" "-a" "7848779d1bef7a7165d443dee4ba34cfd956cc66e1928f70b74a23a6365c1ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7848779d1bef7a7165d443dee4ba34cfd956cc66e1928f70b74a23a6365c1ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7848779d1bef7a7165d443dee4ba34cfd956cc66e1928f70b74a23a6365c1ef6", kill_on_drop: false }`
[INFO] [stdout] 7848779d1bef7a7165d443dee4ba34cfd956cc66e1928f70b74a23a6365c1ef6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e207ae1cb66d662cd5017325319d2c5ef493cbed2dcf43d7d344308daca66b7e
[INFO] running `Command { std: "docker" "start" "-a" "e207ae1cb66d662cd5017325319d2c5ef493cbed2dcf43d7d344308daca66b7e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking contest-algorithms v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "e207ae1cb66d662cd5017325319d2c5ef493cbed2dcf43d7d344308daca66b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e207ae1cb66d662cd5017325319d2c5ef493cbed2dcf43d7d344308daca66b7e", kill_on_drop: false }`
[INFO] [stdout] e207ae1cb66d662cd5017325319d2c5ef493cbed2dcf43d7d344308daca66b7e