[INFO] fetching crate flandres 0.3.1...
[INFO] testing flandres-0.3.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate flandres 0.3.1 into /workspace/builds/worker-95/source
[INFO] validating manifest of crates.io crate flandres 0.3.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flandres 0.3.1
[INFO] finished tweaking crates.io crate flandres 0.3.1
[INFO] tweaked toml for crates.io crate flandres 0.3.1 written to /workspace/builds/worker-95/source/Cargo.toml
[INFO] crate crates.io crate flandres 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7497d5096eb5c6678420b9f70136fab2776fcfd741dfff398317d965df72084
[INFO] running `Command { std: "docker" "start" "-a" "c7497d5096eb5c6678420b9f70136fab2776fcfd741dfff398317d965df72084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7497d5096eb5c6678420b9f70136fab2776fcfd741dfff398317d965df72084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7497d5096eb5c6678420b9f70136fab2776fcfd741dfff398317d965df72084", kill_on_drop: false }`
[INFO] [stdout] c7497d5096eb5c6678420b9f70136fab2776fcfd741dfff398317d965df72084
[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=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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c475dbb69851a4ef2e7de52ca344e7c98206423d666dc261433d6cbd777f6b9
[INFO] running `Command { std: "docker" "start" "-a" "1c475dbb69851a4ef2e7de52ca344e7c98206423d666dc261433d6cbd777f6b9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling fltk-sys v1.0.7
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling fltk-derive v1.0.7
[INFO] [stderr] error: could not compile `fltk-derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name fltk_derive --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/fltk-derive-1.0.7/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=54ea77172b832c65 -C extra-filename=-54ea77172b832c65 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern quote=/opt/rustwide/target/debug/deps/libquote-9a1ec515ed4a0df9.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-dbdbd3dbe4b321b6.rlib --extern proc_macro --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1c475dbb69851a4ef2e7de52ca344e7c98206423d666dc261433d6cbd777f6b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c475dbb69851a4ef2e7de52ca344e7c98206423d666dc261433d6cbd777f6b9", kill_on_drop: false }`
[INFO] [stdout] 1c475dbb69851a4ef2e7de52ca344e7c98206423d666dc261433d6cbd777f6b9