[INFO] fetching crate ukebox 0.9.0...
[INFO] testing ukebox-0.9.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate ukebox 0.9.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate ukebox 0.9.0 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 ukebox 0.9.0
[INFO] finished tweaking crates.io crate ukebox 0.9.0
[INFO] tweaked toml for crates.io crate ukebox 0.9.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate ukebox 0.9.0 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 65319a8be43966d5a9a79eab5d9caf0b59acf26cca4cfcac3ece574973f6a005
[INFO] running `Command { std: "docker" "start" "-a" "65319a8be43966d5a9a79eab5d9caf0b59acf26cca4cfcac3ece574973f6a005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65319a8be43966d5a9a79eab5d9caf0b59acf26cca4cfcac3ece574973f6a005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65319a8be43966d5a9a79eab5d9caf0b59acf26cca4cfcac3ece574973f6a005", kill_on_drop: false }`
[INFO] [stdout] 65319a8be43966d5a9a79eab5d9caf0b59acf26cca4cfcac3ece574973f6a005
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 64b9b1b5dccf47bb82982cc6694c94dfd2b88be390ed378e353c3342769e9b62
[INFO] running `Command { std: "docker" "start" "-a" "64b9b1b5dccf47bb82982cc6694c94dfd2b88be390ed378e353c3342769e9b62", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling fixedbitset v0.4.0
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling ukebox v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.67s
[INFO] running `Command { std: "docker" "inspect" "64b9b1b5dccf47bb82982cc6694c94dfd2b88be390ed378e353c3342769e9b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b9b1b5dccf47bb82982cc6694c94dfd2b88be390ed378e353c3342769e9b62", kill_on_drop: false }`
[INFO] [stdout] 64b9b1b5dccf47bb82982cc6694c94dfd2b88be390ed378e353c3342769e9b62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] d0966e58c5688d91e04889a28e17506770032ddb4c7cca4fa94276d8c3c75771
[INFO] running `Command { std: "docker" "start" "-a" "d0966e58c5688d91e04889a28e17506770032ddb4c7cca4fa94276d8c3c75771", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling termtree v0.2.3
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling predicates-tree v1.0.4
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling rstest v0.11.0
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling predicates v2.1.0
[INFO] [stderr]    Compiling assert_cmd v2.0.2
[INFO] [stderr]    Compiling ukebox v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `ukebox`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name ukebox --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=9449819a28c0c1fd -C extra-filename=-9449819a28c0c1fd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern assert_cmd=/opt/rustwide/target/debug/deps/libassert_cmd-abffea92c77cb4cb.rlib --extern indoc=/opt/rustwide/target/debug/deps/libindoc-10ffa8efd79c82d3.so --extern itertools=/opt/rustwide/target/debug/deps/libitertools-861b3a55d453e9ac.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-b341606102c7008f.rlib --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-2b0e45b6caf8ab89.rlib --extern predicates=/opt/rustwide/target/debug/deps/libpredicates-9b93d758744063cd.rlib --extern rstest=/opt/rustwide/target/debug/deps/librstest-4fa0f66436e909a3.so --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-f1396e29154b6a01.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "d0966e58c5688d91e04889a28e17506770032ddb4c7cca4fa94276d8c3c75771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0966e58c5688d91e04889a28e17506770032ddb4c7cca4fa94276d8c3c75771", kill_on_drop: false }`
[INFO] [stdout] d0966e58c5688d91e04889a28e17506770032ddb4c7cca4fa94276d8c3c75771