[INFO] cloning repository https://github.com/SAPikachu/euphonium
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SAPikachu/euphonium" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSAPikachu%2Feuphonium", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSAPikachu%2Feuphonium'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9914215bc554a13781804d589394c4787e8a5254
[INFO] checking SAPikachu/euphonium against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSAPikachu%2Feuphonium" "/workspace/builds/worker-42/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-42/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SAPikachu/euphonium on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SAPikachu/euphonium
[INFO] finished tweaking git repo https://github.com/SAPikachu/euphonium
[INFO] tweaked toml for git repo https://github.com/SAPikachu/euphonium written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate git repo https://github.com/SAPikachu/euphonium already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a503e5a9610c556e7e7e5ea2a38c7d555c24aefff37c3b5ec03bb5519d934b1
[INFO] running `Command { std: "docker" "start" "-a" "6a503e5a9610c556e7e7e5ea2a38c7d555c24aefff37c3b5ec03bb5519d934b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a503e5a9610c556e7e7e5ea2a38c7d555c24aefff37c3b5ec03bb5519d934b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a503e5a9610c556e7e7e5ea2a38c7d555c24aefff37c3b5ec03bb5519d934b1", kill_on_drop: false }`
[INFO] [stdout] 6a503e5a9610c556e7e7e5ea2a38c7d555c24aefff37c3b5ec03bb5519d934b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53e29e84763a627fdafcfbf76ff6c60bf65435f898eddb8072eee994adf07c29
[INFO] running `Command { std: "docker" "start" "-a" "53e29e84763a627fdafcfbf76ff6c60bf65435f898eddb8072eee994adf07c29", 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] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking smallvec v0.6.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking spin v0.4.6
[INFO] [stderr]     Checking pnet_base v0.20.0
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking ipnetwork v0.12.7
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]     Checking slab v0.2.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking data-encoding v1.2.0
[INFO] [stderr]     Checking treebitmap v0.2.2 (https://github.com/sopium/treebitmap.git#fb5f2235)
[INFO] [stderr]     Checking macro-attr v0.2.0
[INFO] [stderr]     Checking atom v0.3.4
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking yaml-rust v0.4.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rustc_serialize /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.24/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=6f34013fb813232d -C extra-filename=-6f34013fb813232d --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" "53e29e84763a627fdafcfbf76ff6c60bf65435f898eddb8072eee994adf07c29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53e29e84763a627fdafcfbf76ff6c60bf65435f898eddb8072eee994adf07c29", kill_on_drop: false }`
[INFO] [stdout] 53e29e84763a627fdafcfbf76ff6c60bf65435f898eddb8072eee994adf07c29