[INFO] cloning repository https://github.com/jamesblacklock/wasmer-singlepass-arm-concept
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamesblacklock/wasmer-singlepass-arm-concept" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesblacklock%2Fwasmer-singlepass-arm-concept", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesblacklock%2Fwasmer-singlepass-arm-concept'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea8ac1c86c6053f06ad4c3e0c116b56a9544a014
[INFO] checking jamesblacklock/wasmer-singlepass-arm-concept against try#e0f03aec47b100bc29555561bd62a99d1bc6aca5 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesblacklock%2Fwasmer-singlepass-arm-concept" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jamesblacklock/wasmer-singlepass-arm-concept on toolchain e0f03aec47b100bc29555561bd62a99d1bc6aca5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/jamesblacklock/wasmer-singlepass-arm-concept
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/jamesblacklock/wasmer-singlepass-arm-concept
[INFO] tweaked toml for git repo https://github.com/jamesblacklock/wasmer-singlepass-arm-concept written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/jamesblacklock/wasmer-singlepass-arm-concept already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c2f03e67ad47680a97d6f6bcf95969adbcee48bc61626a6cdb732aaf620441a
[INFO] running `Command { std: "docker" "start" "-a" "2c2f03e67ad47680a97d6f6bcf95969adbcee48bc61626a6cdb732aaf620441a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c2f03e67ad47680a97d6f6bcf95969adbcee48bc61626a6cdb732aaf620441a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c2f03e67ad47680a97d6f6bcf95969adbcee48bc61626a6cdb732aaf620441a", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+e0f03aec47b100bc29555561bd62a99d1bc6aca5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f07c6bf52b94e7be21e018811edc81d81a2d056b996581a65a1467e2ad10fa7
[INFO] running `Command { std: "docker" "start" "-a" "0f07c6bf52b94e7be21e018811edc81d81a2d056b996581a65a1467e2ad10fa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
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[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling wasmer-compiler-cranelift v1.0.2 (/opt/rustwide/workdir/lib/compiler-cranelift)
[INFO] [stderr]    Compiling anyhow v1.0.35
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling ucd-trie v0.1.3
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[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling getrandom v0.2.0
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[INFO] [stderr]    Compiling heck v0.3.1
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[INFO] [stderr]     Checking predicates-tree v1.0.0
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[INFO] [stderr]    Compiling num-traits v0.2.14
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[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]     Checking regalloc v0.0.30
[INFO] [stderr]    Compiling wayland-sys v0.27.0
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.4
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking test-generator v0.1.0 (/opt/rustwide/workdir/tests/lib/test-generator)
[INFO] [stderr]    Compiling cast v0.2.3
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[INFO] [stderr]    Compiling inline-c-macro v0.1.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
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[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rustc_version v0.3.0
[INFO] [stderr] error: could not compile `regalloc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regalloc --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regalloc-0.0.30/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=39255501e45917a9 -C extra-filename=-39255501e45917a9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern log=/opt/rustwide/target/debug/deps/liblog-56c6ea24e985b331.rmeta --extern rustc_hash=/opt/rustwide/target/debug/deps/librustc_hash-4d43eaa587425f2c.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-759699eb99d1e173.rmeta --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" "0f07c6bf52b94e7be21e018811edc81d81a2d056b996581a65a1467e2ad10fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f07c6bf52b94e7be21e018811edc81d81a2d056b996581a65a1467e2ad10fa7", kill_on_drop: false }`
[INFO] [stdout] 0f07c6bf52b94e7be21e018811edc81d81a2d056b996581a65a1467e2ad10fa7