[INFO] cloning repository https://github.com/NicholasLYang/saber
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NicholasLYang/saber" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Fsaber", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Fsaber'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 954dd7a1468f929056307aab06a3258f358b2233
[INFO] checking NicholasLYang/saber against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Fsaber" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NicholasLYang/saber on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NicholasLYang/saber
[INFO] finished tweaking git repo https://github.com/NicholasLYang/saber
[INFO] tweaked toml for git repo https://github.com/NicholasLYang/saber written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] crate git repo https://github.com/NicholasLYang/saber already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6340613c2a9057c3c4733947b17a2ed45290d81503facf8dff0e2edb9a93f737
[INFO] running `Command { std: "docker" "start" "-a" "6340613c2a9057c3c4733947b17a2ed45290d81503facf8dff0e2edb9a93f737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6340613c2a9057c3c4733947b17a2ed45290d81503facf8dff0e2edb9a93f737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6340613c2a9057c3c4733947b17a2ed45290d81503facf8dff0e2edb9a93f737", kill_on_drop: false }`
[INFO] [stdout] 6340613c2a9057c3c4733947b17a2ed45290d81503facf8dff0e2edb9a93f737
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a34946c440da7a74bd8a2558a0200dbf7a72f29e6bece414caed92528c882726
[INFO] running `Command { std: "docker" "start" "-a" "a34946c440da7a74bd8a2558a0200dbf7a72f29e6bece414caed92528c882726", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.69.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling target-lexicon v0.11.1
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking wasmparser v0.71.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling wasmtime-cache v0.22.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking strum v0.13.0
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling cpp_demangle v0.3.2
[INFO] [stderr]     Checking bimap v0.4.0
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.22/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"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=7e4751b993abafcb -C extra-filename=-7e4751b993abafcb --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" "a34946c440da7a74bd8a2558a0200dbf7a72f29e6bece414caed92528c882726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a34946c440da7a74bd8a2558a0200dbf7a72f29e6bece414caed92528c882726", kill_on_drop: false }`
[INFO] [stdout] a34946c440da7a74bd8a2558a0200dbf7a72f29e6bece414caed92528c882726