[INFO] fetching crate rustrank 0.0.1...
[INFO] testing rustrank-0.0.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate rustrank 0.0.1 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate rustrank 0.0.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustrank 0.0.1
[INFO] finished tweaking crates.io crate rustrank 0.0.1
[INFO] tweaked toml for crates.io crate rustrank 0.0.1 written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] crate crates.io crate rustrank 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e613b350564a238e48e624348db352dc6c383ef7cd08a07e6733b7f77fc7fc1f
[INFO] running `Command { std: "docker" "start" "-a" "e613b350564a238e48e624348db352dc6c383ef7cd08a07e6733b7f77fc7fc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e613b350564a238e48e624348db352dc6c383ef7cd08a07e6733b7f77fc7fc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e613b350564a238e48e624348db352dc6c383ef7cd08a07e6733b7f77fc7fc1f", kill_on_drop: false }`
[INFO] [stdout] e613b350564a238e48e624348db352dc6c383ef7cd08a07e6733b7f77fc7fc1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e1c671d4dccc508920740590b1bed3e015fe0c887f24d5d753f80a6400a1877
[INFO] running `Command { std: "docker" "start" "-a" "8e1c671d4dccc508920740590b1bed3e015fe0c887f24d5d753f80a6400a1877", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustrank v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "8e1c671d4dccc508920740590b1bed3e015fe0c887f24d5d753f80a6400a1877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1c671d4dccc508920740590b1bed3e015fe0c887f24d5d753f80a6400a1877", kill_on_drop: false }`
[INFO] [stdout] 8e1c671d4dccc508920740590b1bed3e015fe0c887f24d5d753f80a6400a1877
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 972544d50a28f04909b89fe2c2eb7debcdb50c4a8b758881a19e5b05b98558e5
[INFO] running `Command { std: "docker" "start" "-a" "972544d50a28f04909b89fe2c2eb7debcdb50c4a8b758881a19e5b05b98558e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustrank v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "972544d50a28f04909b89fe2c2eb7debcdb50c4a8b758881a19e5b05b98558e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "972544d50a28f04909b89fe2c2eb7debcdb50c4a8b758881a19e5b05b98558e5", kill_on_drop: false }`
[INFO] [stdout] 972544d50a28f04909b89fe2c2eb7debcdb50c4a8b758881a19e5b05b98558e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b5a4b9dcdea98a2807abacea6e791b3e493ca23e9d286af1c5a0c1246b17bc4d
[INFO] running `Command { std: "docker" "start" "-a" "b5a4b9dcdea98a2807abacea6e791b3e493ca23e9d286af1c5a0c1246b17bc4d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rustrank-57ed9b7fdcdbcb37)
[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" "b5a4b9dcdea98a2807abacea6e791b3e493ca23e9d286af1c5a0c1246b17bc4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a4b9dcdea98a2807abacea6e791b3e493ca23e9d286af1c5a0c1246b17bc4d", kill_on_drop: false }`
[INFO] [stdout] b5a4b9dcdea98a2807abacea6e791b3e493ca23e9d286af1c5a0c1246b17bc4d