[INFO] cloning repository https://github.com/PoC-Consortium/scavenger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PoC-Consortium/scavenger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoC-Consortium%2Fscavenger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoC-Consortium%2Fscavenger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b38f6552c31d589a0433cb8ef52a44c87ce18725
[INFO] checking PoC-Consortium/scavenger against try#e251c42c969d6f8dbaae00e1028489c3a29f8789 for pr-94081
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoC-Consortium%2Fscavenger" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/PoC-Consortium/scavenger on toolchain e251c42c969d6f8dbaae00e1028489c3a29f8789
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PoC-Consortium/scavenger
[INFO] finished tweaking git repo https://github.com/PoC-Consortium/scavenger
[INFO] tweaked toml for git repo https://github.com/PoC-Consortium/scavenger written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/PoC-Consortium/scavenger already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4bd0b3d6174a10ffb66381d4c276ebb9e62f94e4dfb1a77248c4117e8403d7b
[INFO] running `Command { std: "docker" "start" "-a" "f4bd0b3d6174a10ffb66381d4c276ebb9e62f94e4dfb1a77248c4117e8403d7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4bd0b3d6174a10ffb66381d4c276ebb9e62f94e4dfb1a77248c4117e8403d7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4bd0b3d6174a10ffb66381d4c276ebb9e62f94e4dfb1a77248c4117e8403d7b", kill_on_drop: false }`
[INFO] [stdout] f4bd0b3d6174a10ffb66381d4c276ebb9e62f94e4dfb1a77248c4117e8403d7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+e251c42c969d6f8dbaae00e1028489c3a29f8789" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 424bc4c90808b599848edca891ac264919d4a513b4a30d85759be9e97a61c05a
[INFO] running `Command { std: "docker" "start" "-a" "424bc4c90808b599848edca891ac264919d4a513b4a30d85759be9e97a61c05a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.96
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking tokio-sync v0.1.8
[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,artifacts,future-incompat --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" "424bc4c90808b599848edca891ac264919d4a513b4a30d85759be9e97a61c05a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "424bc4c90808b599848edca891ac264919d4a513b4a30d85759be9e97a61c05a", kill_on_drop: false }`
[INFO] [stdout] 424bc4c90808b599848edca891ac264919d4a513b4a30d85759be9e97a61c05a