[INFO] fetching crate prince 0.0.1...
[INFO] checking prince-0.0.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate prince 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate prince 0.0.1
[INFO] finished tweaking crates.io crate prince 0.0.1
[INFO] tweaked toml for crates.io crate prince 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate prince 0.0.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate prince 0.0.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 100527b9dfc1fe9f454eb115b1cd93a6bec0423a8a6be316f97040fa2f54cc2c
[INFO] running `Command { std: "docker" "start" "-a" "100527b9dfc1fe9f454eb115b1cd93a6bec0423a8a6be316f97040fa2f54cc2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "100527b9dfc1fe9f454eb115b1cd93a6bec0423a8a6be316f97040fa2f54cc2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "100527b9dfc1fe9f454eb115b1cd93a6bec0423a8a6be316f97040fa2f54cc2c", kill_on_drop: false }`
[INFO] [stdout] 100527b9dfc1fe9f454eb115b1cd93a6bec0423a8a6be316f97040fa2f54cc2c
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2191d4b4d4a7b425cb6b9438e1d8c23360c920ad742a25494d52c173f55f5a74
[INFO] running `Command { std: "docker" "start" "-a" "2191d4b4d4a7b425cb6b9438e1d8c23360c920ad742a25494d52c173f55f5a74", kill_on_drop: false }`
[INFO] [stderr]     Checking prince v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "2191d4b4d4a7b425cb6b9438e1d8c23360c920ad742a25494d52c173f55f5a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2191d4b4d4a7b425cb6b9438e1d8c23360c920ad742a25494d52c173f55f5a74", kill_on_drop: false }`
[INFO] [stdout] 2191d4b4d4a7b425cb6b9438e1d8c23360c920ad742a25494d52c173f55f5a74