[INFO] cloning repository https://github.com/MaxStrange/roboarm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MaxStrange/roboarm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxStrange%2Froboarm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxStrange%2Froboarm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32fd976768a5db68959dbf14f88f6ef18691372c
[INFO] testing MaxStrange/roboarm against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaxStrange%2Froboarm" "/workspace/builds/worker-112/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-112/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MaxStrange/roboarm on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MaxStrange/roboarm
[INFO] finished tweaking git repo https://github.com/MaxStrange/roboarm
[INFO] tweaked toml for git repo https://github.com/MaxStrange/roboarm written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate git repo https://github.com/MaxStrange/roboarm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f371445b9636440b70edfb41fd6b6d7f35b38d93c889e39cfe99c2b88e98c3db
[INFO] running `Command { std: "docker" "start" "-a" "f371445b9636440b70edfb41fd6b6d7f35b38d93c889e39cfe99c2b88e98c3db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f371445b9636440b70edfb41fd6b6d7f35b38d93c889e39cfe99c2b88e98c3db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f371445b9636440b70edfb41fd6b6d7f35b38d93c889e39cfe99c2b88e98c3db", kill_on_drop: false }`
[INFO] [stdout] f371445b9636440b70edfb41fd6b6d7f35b38d93c889e39cfe99c2b88e98c3db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aab28ae7c648137336c66e3e7e2fc5ec2b714ca2208f69e4b33f1e499106e891
[INFO] running `Command { std: "docker" "start" "-a" "aab28ae7c648137336c66e3e7e2fc5ec2b714ca2208f69e4b33f1e499106e891", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling vcell v0.1.0
[INFO] [stderr]    Compiling cortex-m-rt v0.6.5
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling cortex-m v0.5.8
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling bare-metal v0.2.3
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling ucd-util v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling tm4c123x v0.7.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling libm v0.1.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.2
[INFO] [stderr]    Compiling RustyXML v0.1.1
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling tm4c123x-hal v0.6.0
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling nb v0.1.1
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling rust-ini v0.12.2
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling xml-rs v0.3.6
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling embedded-hal v0.2.1
[INFO] [stderr]    Compiling yaml-rust v0.4.2
[INFO] [stderr]    Compiling hash32 v0.1.0
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling bytes v0.4.10
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr] error: could not compile `serde`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-0.9.15/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=107522095b8404fa -C extra-filename=-107522095b8404fa --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (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" "aab28ae7c648137336c66e3e7e2fc5ec2b714ca2208f69e4b33f1e499106e891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aab28ae7c648137336c66e3e7e2fc5ec2b714ca2208f69e4b33f1e499106e891", kill_on_drop: false }`
[INFO] [stdout] aab28ae7c648137336c66e3e7e2fc5ec2b714ca2208f69e4b33f1e499106e891