[INFO] fetching crate cargo-cover 0.0.0...
[INFO] checking cargo-cover-0.0.0 against master#7702ae16a23407cdd909ff9174294563ae1f4ba3 for pr-97183
[INFO] extracting crate cargo-cover 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cargo-cover 0.0.0 on toolchain 7702ae16a23407cdd909ff9174294563ae1f4ba3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7702ae16a23407cdd909ff9174294563ae1f4ba3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-cover 0.0.0
[INFO] finished tweaking crates.io crate cargo-cover 0.0.0
[INFO] tweaked toml for crates.io crate cargo-cover 0.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cargo-cover 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7702ae16a23407cdd909ff9174294563ae1f4ba3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+7702ae16a23407cdd909ff9174294563ae1f4ba3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1fc048cd2cd20253c43d118c72d7d584680b64000aa745a01e106ca189f3e4a
[INFO] running `Command { std: "docker" "start" "-a" "b1fc048cd2cd20253c43d118c72d7d584680b64000aa745a01e106ca189f3e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1fc048cd2cd20253c43d118c72d7d584680b64000aa745a01e106ca189f3e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1fc048cd2cd20253c43d118c72d7d584680b64000aa745a01e106ca189f3e4a", kill_on_drop: false }`
[INFO] [stdout] b1fc048cd2cd20253c43d118c72d7d584680b64000aa745a01e106ca189f3e4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+7702ae16a23407cdd909ff9174294563ae1f4ba3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09da8ebc58e6b02e7143bc5d594642193e8f9795e2aad302716be0a550d725d2
[INFO] running `Command { std: "docker" "start" "-a" "09da8ebc58e6b02e7143bc5d594642193e8f9795e2aad302716be0a550d725d2", kill_on_drop: false }`
[INFO] [stderr]     Checking cargo-cover v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "09da8ebc58e6b02e7143bc5d594642193e8f9795e2aad302716be0a550d725d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09da8ebc58e6b02e7143bc5d594642193e8f9795e2aad302716be0a550d725d2", kill_on_drop: false }`
[INFO] [stdout] 09da8ebc58e6b02e7143bc5d594642193e8f9795e2aad302716be0a550d725d2