[INFO] cloning repository https://github.com/meringu/murulang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/meringu/murulang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeringu%2Fmurulang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeringu%2Fmurulang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 630d8bb6ddbb1737013a7beb8a6dfdf6a9503e82
[INFO] testing meringu/murulang against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmeringu%2Fmurulang" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/meringu/murulang on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/meringu/murulang
[INFO] finished tweaking git repo https://github.com/meringu/murulang
[INFO] tweaked toml for git repo https://github.com/meringu/murulang written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate git repo https://github.com/meringu/murulang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2698b2ba4b800b82882d0aa24c4059721484afe72abacf993a7710edc0a38ae3
[INFO] running `Command { std: "docker" "start" "-a" "2698b2ba4b800b82882d0aa24c4059721484afe72abacf993a7710edc0a38ae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2698b2ba4b800b82882d0aa24c4059721484afe72abacf993a7710edc0a38ae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2698b2ba4b800b82882d0aa24c4059721484afe72abacf993a7710edc0a38ae3", kill_on_drop: false }`
[INFO] [stdout] 2698b2ba4b800b82882d0aa24c4059721484afe72abacf993a7710edc0a38ae3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ee3a3e669b21496efc6ad9dee32076a58ea2e084ec60c07e46bb0c1c3ee384c
[INFO] running `Command { std: "docker" "start" "-a" "4ee3a3e669b21496efc6ad9dee32076a58ea2e084ec60c07e46bb0c1c3ee384c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling rustc-demangle v0.1.19
[INFO] [stderr]    Compiling object v0.24.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling from-pest v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling wabt-sys v0.6.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling addr2line v0.15.1
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr] error: could not compile `failure_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name failure_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure_derive-0.1.8/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=cbbec837e8fb9368 -C extra-filename=-cbbec837e8fb9368 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-283fad16493adf62.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-cf6158c23ff62a4c.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-63b120810ca9b87b.rlib --extern synstructure=/opt/rustwide/target/debug/deps/libsynstructure-1fec348ae50180ec.rlib --extern proc_macro --cap-lints allow --cap-lints=warn --cfg has_dyn_trait` (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" "4ee3a3e669b21496efc6ad9dee32076a58ea2e084ec60c07e46bb0c1c3ee384c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ee3a3e669b21496efc6ad9dee32076a58ea2e084ec60c07e46bb0c1c3ee384c", kill_on_drop: false }`
[INFO] [stdout] 4ee3a3e669b21496efc6ad9dee32076a58ea2e084ec60c07e46bb0c1c3ee384c