[INFO] fetching crate formal_spec 0.0.1...
[INFO] testing formal_spec-0.0.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate formal_spec 0.0.1 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate formal_spec 0.0.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate formal_spec 0.0.1
[INFO] finished tweaking crates.io crate formal_spec 0.0.1
[INFO] tweaked toml for crates.io crate formal_spec 0.0.1 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0df00a9879d2e2bd595b647304226091f1cb0512f94ff479556aa8f3e6458f95
[INFO] running `Command { std: "docker" "start" "-a" "0df00a9879d2e2bd595b647304226091f1cb0512f94ff479556aa8f3e6458f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0df00a9879d2e2bd595b647304226091f1cb0512f94ff479556aa8f3e6458f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0df00a9879d2e2bd595b647304226091f1cb0512f94ff479556aa8f3e6458f95", kill_on_drop: false }`
[INFO] [stdout] 0df00a9879d2e2bd595b647304226091f1cb0512f94ff479556aa8f3e6458f95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3361b087f5e665d9bf989b6a590ec9db4c45a7c1c725ee5467dd067df2881002
[INFO] running `Command { std: "docker" "start" "-a" "3361b087f5e665d9bf989b6a590ec9db4c45a7c1c725ee5467dd067df2881002", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling formal_spec v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.38s
[INFO] running `Command { std: "docker" "inspect" "3361b087f5e665d9bf989b6a590ec9db4c45a7c1c725ee5467dd067df2881002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3361b087f5e665d9bf989b6a590ec9db4c45a7c1c725ee5467dd067df2881002", kill_on_drop: false }`
[INFO] [stdout] 3361b087f5e665d9bf989b6a590ec9db4c45a7c1c725ee5467dd067df2881002
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c6160f21a9294c2110c8d06298d526cda3d006dc3f827f2213319f15418b841
[INFO] running `Command { std: "docker" "start" "-a" "7c6160f21a9294c2110c8d06298d526cda3d006dc3f827f2213319f15418b841", kill_on_drop: false }`
[INFO] [stderr]    Compiling formal_spec v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.20s
[INFO] running `Command { std: "docker" "inspect" "7c6160f21a9294c2110c8d06298d526cda3d006dc3f827f2213319f15418b841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c6160f21a9294c2110c8d06298d526cda3d006dc3f827f2213319f15418b841", kill_on_drop: false }`
[INFO] [stdout] 7c6160f21a9294c2110c8d06298d526cda3d006dc3f827f2213319f15418b841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dd7b423c30c3a14d30cd554ef0f5a76aa23769c6e24ee5dd26f0ae1fe0113ccd
[INFO] running `Command { std: "docker" "start" "-a" "dd7b423c30c3a14d30cd554ef0f5a76aa23769c6e24ee5dd26f0ae1fe0113ccd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/formal_spec-79546ee64091fa3e)
[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] [stderr]    Doc-tests formal_spec
[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" "dd7b423c30c3a14d30cd554ef0f5a76aa23769c6e24ee5dd26f0ae1fe0113ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7b423c30c3a14d30cd554ef0f5a76aa23769c6e24ee5dd26f0ae1fe0113ccd", kill_on_drop: false }`
[INFO] [stdout] dd7b423c30c3a14d30cd554ef0f5a76aa23769c6e24ee5dd26f0ae1fe0113ccd