[INFO] fetching crate supports-color 3.0.0...
[INFO] checking supports-color-3.0.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate supports-color 3.0.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate supports-color 3.0.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate supports-color 3.0.0
[INFO] finished tweaking crates.io crate supports-color 3.0.0
[INFO] tweaked toml for crates.io crate supports-color 3.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded is_ci v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 518a8a37c6c2a3d5514f94c8f7acfa32957a6700b0b83077b378d38e2bab4c5b
[INFO] running `Command { std: "docker" "start" "-a" "518a8a37c6c2a3d5514f94c8f7acfa32957a6700b0b83077b378d38e2bab4c5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "518a8a37c6c2a3d5514f94c8f7acfa32957a6700b0b83077b378d38e2bab4c5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "518a8a37c6c2a3d5514f94c8f7acfa32957a6700b0b83077b378d38e2bab4c5b", kill_on_drop: false }`
[INFO] [stdout] 518a8a37c6c2a3d5514f94c8f7acfa32957a6700b0b83077b378d38e2bab4c5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fcba40799b8ab58f6987b5a8148a1dc1b4ff4c5d1769ac44913c746cf04506f
[INFO] running `Command { std: "docker" "start" "-a" "2fcba40799b8ab58f6987b5a8148a1dc1b4ff4c5d1769ac44913c746cf04506f", kill_on_drop: false }`
[INFO] [stderr]     Checking is_ci v1.2.0
[INFO] [stderr]     Checking supports-color v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "2fcba40799b8ab58f6987b5a8148a1dc1b4ff4c5d1769ac44913c746cf04506f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fcba40799b8ab58f6987b5a8148a1dc1b4ff4c5d1769ac44913c746cf04506f", kill_on_drop: false }`
[INFO] [stdout] 2fcba40799b8ab58f6987b5a8148a1dc1b4ff4c5d1769ac44913c746cf04506f