[INFO] fetching crate comment_app_backend 0.1.3...
[INFO] checking comment_app_backend-0.1.3 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate comment_app_backend 0.1.3 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate comment_app_backend 0.1.3 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comment_app_backend 0.1.3
[INFO] finished tweaking crates.io crate comment_app_backend 0.1.3
[INFO] tweaked toml for crates.io crate comment_app_backend 0.1.3 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate crates.io crate comment_app_backend 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time-macros-impl v0.1.0
[INFO] [stderr]   Downloaded rusqlite v0.23.1
[INFO] [stderr]   Downloaded standback v0.2.2
[INFO] [stderr]   Downloaded time v0.2.9
[INFO] [stderr]   Downloaded libsqlite3-sys v0.18.0
[INFO] [stderr]   Downloaded lexical-core v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74d72e62023ab1d8b15027a10b2ca4499b19901f7959494ec17f3cb38ffd9f7b
[INFO] running `Command { std: "docker" "start" "-a" "74d72e62023ab1d8b15027a10b2ca4499b19901f7959494ec17f3cb38ffd9f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74d72e62023ab1d8b15027a10b2ca4499b19901f7959494ec17f3cb38ffd9f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d72e62023ab1d8b15027a10b2ca4499b19901f7959494ec17f3cb38ffd9f7b", kill_on_drop: false }`
[INFO] [stdout] 74d72e62023ab1d8b15027a10b2ca4499b19901f7959494ec17f3cb38ffd9f7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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=warn" "-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" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85b725bd73d3aa49535839416c3fc4116b5289407ae441bf2e85ed3a7f251119
[INFO] running `Command { std: "docker" "start" "-a" "85b725bd73d3aa49535839416c3fc4116b5289407ae441bf2e85ed3a7f251119", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking smallvec v1.3.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]    Compiling standback v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr] error: could not compile `cc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cc --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.50/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=5c6631cfa7bc8c5a -C extra-filename=-5c6631cfa7bc8c5a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn` (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" "85b725bd73d3aa49535839416c3fc4116b5289407ae441bf2e85ed3a7f251119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85b725bd73d3aa49535839416c3fc4116b5289407ae441bf2e85ed3a7f251119", kill_on_drop: false }`
[INFO] [stdout] 85b725bd73d3aa49535839416c3fc4116b5289407ae441bf2e85ed3a7f251119
