[INFO] fetching crate cargo-cover 0.0.0...
[INFO] testing cargo-cover-0.0.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate cargo-cover 0.0.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate cargo-cover 0.0.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-20/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8dabf1a360eb985fd17cbc3b814616030bc8e3b45c9136131a3cf5f8378a699
[INFO] running `Command { std: "docker" "start" "-a" "e8dabf1a360eb985fd17cbc3b814616030bc8e3b45c9136131a3cf5f8378a699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8dabf1a360eb985fd17cbc3b814616030bc8e3b45c9136131a3cf5f8378a699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8dabf1a360eb985fd17cbc3b814616030bc8e3b45c9136131a3cf5f8378a699", kill_on_drop: false }`
[INFO] [stdout] e8dabf1a360eb985fd17cbc3b814616030bc8e3b45c9136131a3cf5f8378a699
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc2cf694725d7691563b7748adeb9876d1318fa84bb1612b5de1dfa58b2f7685
[INFO] running `Command { std: "docker" "start" "-a" "dc2cf694725d7691563b7748adeb9876d1318fa84bb1612b5de1dfa58b2f7685", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-cover v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "dc2cf694725d7691563b7748adeb9876d1318fa84bb1612b5de1dfa58b2f7685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc2cf694725d7691563b7748adeb9876d1318fa84bb1612b5de1dfa58b2f7685", kill_on_drop: false }`
[INFO] [stdout] dc2cf694725d7691563b7748adeb9876d1318fa84bb1612b5de1dfa58b2f7685
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6b35d621afd1766f1fcefb0ae2a8b7e8777d1f8a46bf5342c8cfeedf08125db
[INFO] running `Command { std: "docker" "start" "-a" "e6b35d621afd1766f1fcefb0ae2a8b7e8777d1f8a46bf5342c8cfeedf08125db", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-cover v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "e6b35d621afd1766f1fcefb0ae2a8b7e8777d1f8a46bf5342c8cfeedf08125db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6b35d621afd1766f1fcefb0ae2a8b7e8777d1f8a46bf5342c8cfeedf08125db", kill_on_drop: false }`
[INFO] [stdout] e6b35d621afd1766f1fcefb0ae2a8b7e8777d1f8a46bf5342c8cfeedf08125db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4ee6f62ea0b1dc59318052d4d9d33505dcba04ac6278b4d18a292a6e3957b81c
[INFO] running `Command { std: "docker" "start" "-a" "4ee6f62ea0b1dc59318052d4d9d33505dcba04ac6278b4d18a292a6e3957b81c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_cover-9dfbdb3a9d775527)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4ee6f62ea0b1dc59318052d4d9d33505dcba04ac6278b4d18a292a6e3957b81c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ee6f62ea0b1dc59318052d4d9d33505dcba04ac6278b4d18a292a6e3957b81c", kill_on_drop: false }`
[INFO] [stdout] 4ee6f62ea0b1dc59318052d4d9d33505dcba04ac6278b4d18a292a6e3957b81c