[INFO] fetching crate impossible 0.0.0...
[INFO] testing impossible-0.0.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate impossible 0.0.0 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate impossible 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 impossible 0.0.0
[INFO] finished tweaking crates.io crate impossible 0.0.0
[INFO] tweaked toml for crates.io crate impossible 0.0.0 written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] crate crates.io crate impossible 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-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] 6aa9046fae9268e23292600e97d22a2ede2e0ca75f067bbf3383fab7c474450d
[INFO] running `Command { std: "docker" "start" "-a" "6aa9046fae9268e23292600e97d22a2ede2e0ca75f067bbf3383fab7c474450d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6aa9046fae9268e23292600e97d22a2ede2e0ca75f067bbf3383fab7c474450d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aa9046fae9268e23292600e97d22a2ede2e0ca75f067bbf3383fab7c474450d", kill_on_drop: false }`
[INFO] [stdout] 6aa9046fae9268e23292600e97d22a2ede2e0ca75f067bbf3383fab7c474450d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] 6e71762f3c67daa47a49330c07436f3e5d7a13617c041f659913bfd312759eb9
[INFO] running `Command { std: "docker" "start" "-a" "6e71762f3c67daa47a49330c07436f3e5d7a13617c041f659913bfd312759eb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling impossible v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "6e71762f3c67daa47a49330c07436f3e5d7a13617c041f659913bfd312759eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e71762f3c67daa47a49330c07436f3e5d7a13617c041f659913bfd312759eb9", kill_on_drop: false }`
[INFO] [stdout] 6e71762f3c67daa47a49330c07436f3e5d7a13617c041f659913bfd312759eb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] f3ff85c46630fba27fa54cc3dd5fbe7a0fb3b0c0eca166bd34c105a92be702a8
[INFO] running `Command { std: "docker" "start" "-a" "f3ff85c46630fba27fa54cc3dd5fbe7a0fb3b0c0eca166bd34c105a92be702a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling impossible v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "f3ff85c46630fba27fa54cc3dd5fbe7a0fb3b0c0eca166bd34c105a92be702a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3ff85c46630fba27fa54cc3dd5fbe7a0fb3b0c0eca166bd34c105a92be702a8", kill_on_drop: false }`
[INFO] [stdout] f3ff85c46630fba27fa54cc3dd5fbe7a0fb3b0c0eca166bd34c105a92be702a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] 4cf7f6c9892fde3792f5b415ebfc34cfdbb8294b0c2de1340fdf2cab988fc3e4
[INFO] running `Command { std: "docker" "start" "-a" "4cf7f6c9892fde3792f5b415ebfc34cfdbb8294b0c2de1340fdf2cab988fc3e4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/impossible-1a64da71986a2fa3)
[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" "4cf7f6c9892fde3792f5b415ebfc34cfdbb8294b0c2de1340fdf2cab988fc3e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cf7f6c9892fde3792f5b415ebfc34cfdbb8294b0c2de1340fdf2cab988fc3e4", kill_on_drop: false }`
[INFO] [stdout] 4cf7f6c9892fde3792f5b415ebfc34cfdbb8294b0c2de1340fdf2cab988fc3e4