[INFO] fetching crate formal 0.1.0...
[INFO] testing formal-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate formal 0.1.0 into /workspace/builds/worker-85/source
[INFO] validating manifest of crates.io crate formal 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate formal 0.1.0
[INFO] finished tweaking crates.io crate formal 0.1.0
[INFO] tweaked toml for crates.io crate formal 0.1.0 written to /workspace/builds/worker-85/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb3883901def8bfb5768280ddb5c660206f28f9be18cde5a154bb4aca982b941
[INFO] running `Command { std: "docker" "start" "-a" "eb3883901def8bfb5768280ddb5c660206f28f9be18cde5a154bb4aca982b941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb3883901def8bfb5768280ddb5c660206f28f9be18cde5a154bb4aca982b941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb3883901def8bfb5768280ddb5c660206f28f9be18cde5a154bb4aca982b941", kill_on_drop: false }`
[INFO] [stdout] eb3883901def8bfb5768280ddb5c660206f28f9be18cde5a154bb4aca982b941
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f38113a4d4e782702338a997ae6a678d4b4449943bb7c4bb55dda6265e1506b7
[INFO] running `Command { std: "docker" "start" "-a" "f38113a4d4e782702338a997ae6a678d4b4449943bb7c4bb55dda6265e1506b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling formal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "f38113a4d4e782702338a997ae6a678d4b4449943bb7c4bb55dda6265e1506b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f38113a4d4e782702338a997ae6a678d4b4449943bb7c4bb55dda6265e1506b7", kill_on_drop: false }`
[INFO] [stdout] f38113a4d4e782702338a997ae6a678d4b4449943bb7c4bb55dda6265e1506b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dddb63223ee3f00626d96a2f249f4547df79573342fdc46208806528df832b83
[INFO] running `Command { std: "docker" "start" "-a" "dddb63223ee3f00626d96a2f249f4547df79573342fdc46208806528df832b83", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling formal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "dddb63223ee3f00626d96a2f249f4547df79573342fdc46208806528df832b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dddb63223ee3f00626d96a2f249f4547df79573342fdc46208806528df832b83", kill_on_drop: false }`
[INFO] [stdout] dddb63223ee3f00626d96a2f249f4547df79573342fdc46208806528df832b83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 979f4f09bcb70acb7b8f49eb7f4b2139c6ad7a05da131fbe1dc9acdfd9cb95a7
[INFO] running `Command { std: "docker" "start" "-a" "979f4f09bcb70acb7b8f49eb7f4b2139c6ad7a05da131fbe1dc9acdfd9cb95a7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/formal-13770133af5c3c74)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests formal
[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] [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" "979f4f09bcb70acb7b8f49eb7f4b2139c6ad7a05da131fbe1dc9acdfd9cb95a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "979f4f09bcb70acb7b8f49eb7f4b2139c6ad7a05da131fbe1dc9acdfd9cb95a7", kill_on_drop: false }`
[INFO] [stdout] 979f4f09bcb70acb7b8f49eb7f4b2139c6ad7a05da131fbe1dc9acdfd9cb95a7