[INFO] cloning repository https://github.com/df5602/aoc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/df5602/aoc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdf5602%2Faoc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdf5602%2Faoc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c63dda1ca30144e699f0be41430d9f9c5cfe396
[INFO] testing df5602/aoc against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdf5602%2Faoc" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/df5602/aoc 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 git repo https://github.com/df5602/aoc
[INFO] finished tweaking git repo https://github.com/df5602/aoc
[INFO] tweaked toml for git repo https://github.com/df5602/aoc written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/df5602/aoc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded adhoc_derive v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] cc223c26aa7a578d105b1d0c135f123820bdf39ce16837ad66439d8033997ce1
[INFO] running `Command { std: "docker" "start" "-a" "cc223c26aa7a578d105b1d0c135f123820bdf39ce16837ad66439d8033997ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc223c26aa7a578d105b1d0c135f123820bdf39ce16837ad66439d8033997ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc223c26aa7a578d105b1d0c135f123820bdf39ce16837ad66439d8033997ce1", kill_on_drop: false }`
[INFO] [stdout] cc223c26aa7a578d105b1d0c135f123820bdf39ce16837ad66439d8033997ce1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 68ff87e5771d9e16d22d0bb5e1dd2c899700dcaaabb1763e587c717f54db6a9b
[INFO] running `Command { std: "docker" "start" "-a" "68ff87e5771d9e16d22d0bb5e1dd2c899700dcaaabb1763e587c717f54db6a9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling util v0.1.0 (/opt/rustwide/workdir/util)
[INFO] [stderr]    Compiling chronal_calibration v0.1.0 (/opt/rustwide/workdir/chronal_calibration)
[INFO] [stderr]    Compiling sum_of_its_parts v0.1.0 (/opt/rustwide/workdir/sum_of_its_parts)
[INFO] [stderr]    Compiling immune_system_simulator_20xx v0.1.0 (/opt/rustwide/workdir/immune_system_simulator_20xx)
[INFO] [stderr]    Compiling mode_maze v0.1.0 (/opt/rustwide/workdir/mode_maze)
[INFO] [stderr]    Compiling alchemical_reduction v0.1.0 (/opt/rustwide/workdir/alchemical_reduction)
[INFO] [stderr]    Compiling go_with_the_flow v0.1.0 (/opt/rustwide/workdir/go_with_the_flow)
[INFO] [stderr]    Compiling memory_maneuver v0.1.0 (/opt/rustwide/workdir/memory_maneuver)
[INFO] [stderr]    Compiling four_dimensional_adventure v0.1.0 (/opt/rustwide/workdir/four_dimensional_adventure)
[INFO] [stderr]    Compiling beverage_bandits v0.1.0 (/opt/rustwide/workdir/beverage_bandits)
[INFO] [stderr]    Compiling a_regular_map v0.1.0 (/opt/rustwide/workdir/a_regular_map)
[INFO] [stderr]    Compiling reservoir_research v0.1.0 (/opt/rustwide/workdir/reservoir_research)
[INFO] [stderr]    Compiling chronal_conversion v0.1.0 (/opt/rustwide/workdir/chronal_conversion)
[INFO] [stderr]    Compiling mine_cart_madness v0.1.0 (/opt/rustwide/workdir/mine_cart_madness)
[INFO] [stderr]    Compiling settlers_of_the_north_pole v0.1.0 (/opt/rustwide/workdir/settlers_of_the_north_pole)
[INFO] [stderr]    Compiling chronal_classification v0.1.0 (/opt/rustwide/workdir/chronal_classification)
[INFO] [stderr]    Compiling subterranean_sustainability v0.1.0 (/opt/rustwide/workdir/subterranean_sustainability)
[INFO] [stderr]    Compiling chronal_charge v0.1.0 (/opt/rustwide/workdir/chronal_charge)
[INFO] [stderr]    Compiling stars_align v0.1.0 (/opt/rustwide/workdir/stars_align)
[INFO] [stderr]    Compiling marble_mania v0.1.0 (/opt/rustwide/workdir/marble_mania)
[INFO] [stderr]    Compiling inventory_management_system v0.1.0 (/opt/rustwide/workdir/inventory_management_system)
[INFO] [stderr]    Compiling experimental_emergency_teleportation v0.1.0 (/opt/rustwide/workdir/experimental_emergency_teleportation)
[INFO] [stderr]    Compiling chocolate_charts v0.1.0 (/opt/rustwide/workdir/chocolate_charts)
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.23/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit-mut"' -C metadata=be15159e636737fb -C extra-filename=-be15159e636737fb --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-084553754747af87.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-af621d124a8aa9c8.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-2f6444d33d391550.rmeta --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" "68ff87e5771d9e16d22d0bb5e1dd2c899700dcaaabb1763e587c717f54db6a9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ff87e5771d9e16d22d0bb5e1dd2c899700dcaaabb1763e587c717f54db6a9b", kill_on_drop: false }`
[INFO] [stdout] 68ff87e5771d9e16d22d0bb5e1dd2c899700dcaaabb1763e587c717f54db6a9b