[INFO] fetching crate mossback 0.0.0...
[INFO] testing mossback-0.0.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate mossback 0.0.0 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate mossback 0.0.0 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 mossback 0.0.0
[INFO] finished tweaking crates.io crate mossback 0.0.0
[INFO] tweaked toml for crates.io crate mossback 0.0.0 written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] crate crates.io crate mossback 0.0.0 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-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] e9226611fe60e438c7649aec85ce100a3ce2702ea37605594059c85697b9d688
[INFO] running `Command { std: "docker" "start" "-a" "e9226611fe60e438c7649aec85ce100a3ce2702ea37605594059c85697b9d688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9226611fe60e438c7649aec85ce100a3ce2702ea37605594059c85697b9d688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9226611fe60e438c7649aec85ce100a3ce2702ea37605594059c85697b9d688", kill_on_drop: false }`
[INFO] [stdout] e9226611fe60e438c7649aec85ce100a3ce2702ea37605594059c85697b9d688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] cfade9c42c11882dc5ff6c1c3d9544b9fb18ef3987c91f4d40b1c4a9ae0c7bd6
[INFO] running `Command { std: "docker" "start" "-a" "cfade9c42c11882dc5ff6c1c3d9544b9fb18ef3987c91f4d40b1c4a9ae0c7bd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling mossback v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "cfade9c42c11882dc5ff6c1c3d9544b9fb18ef3987c91f4d40b1c4a9ae0c7bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfade9c42c11882dc5ff6c1c3d9544b9fb18ef3987c91f4d40b1c4a9ae0c7bd6", kill_on_drop: false }`
[INFO] [stdout] cfade9c42c11882dc5ff6c1c3d9544b9fb18ef3987c91f4d40b1c4a9ae0c7bd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] 253636f59340b9fcb01cc9a096feca4a22d9a2a5b11f59113b2c06c23c679cbc
[INFO] running `Command { std: "docker" "start" "-a" "253636f59340b9fcb01cc9a096feca4a22d9a2a5b11f59113b2c06c23c679cbc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mossback v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "253636f59340b9fcb01cc9a096feca4a22d9a2a5b11f59113b2c06c23c679cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "253636f59340b9fcb01cc9a096feca4a22d9a2a5b11f59113b2c06c23c679cbc", kill_on_drop: false }`
[INFO] [stdout] 253636f59340b9fcb01cc9a096feca4a22d9a2a5b11f59113b2c06c23c679cbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-95/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] efb35cd98498439bca2fae6c859e0db04b7b8ec74567ee139b8d1e1eff5f8352
[INFO] running `Command { std: "docker" "start" "-a" "efb35cd98498439bca2fae6c859e0db04b7b8ec74567ee139b8d1e1eff5f8352", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mossback-28544619418fd29a)
[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" "efb35cd98498439bca2fae6c859e0db04b7b8ec74567ee139b8d1e1eff5f8352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efb35cd98498439bca2fae6c859e0db04b7b8ec74567ee139b8d1e1eff5f8352", kill_on_drop: false }`
[INFO] [stdout] efb35cd98498439bca2fae6c859e0db04b7b8ec74567ee139b8d1e1eff5f8352