[INFO] cloning repository https://github.com/simonjiao/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simonjiao/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonjiao%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonjiao%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef5f0750c3bf9d3f52a4ad2784314f35b1dbc7f4
[INFO] testing simonjiao/learning-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonjiao%2Flearning-rust" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simonjiao/learning-rust 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/simonjiao/learning-rust
[INFO] finished tweaking git repo https://github.com/simonjiao/learning-rust
[INFO] tweaked toml for git repo https://github.com/simonjiao/learning-rust written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/simonjiao/learning-rust 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded filetime v0.2.14
[INFO] [stderr]   Downloaded anyhow v1.0.40
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded hashlink v0.6.0
[INFO] [stderr]   Downloaded num-complex v0.4.0
[INFO] [stderr]   Downloaded syslog v5.0.0
[INFO] [stderr]   Downloaded redox_syscall v0.2.7
[INFO] [stderr]   Downloaded xattr v0.2.2
[INFO] [stderr]   Downloaded rustc-demangle v0.1.18
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.1
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.22
[INFO] [stderr]   Downloaded crossbeam v0.8.0
[INFO] [stderr]   Downloaded bytemuck v1.5.1
[INFO] [stderr]   Downloaded num-bigint v0.4.0
[INFO] [stderr]   Downloaded png v0.16.8
[INFO] [stderr]   Downloaded syn v1.0.71
[INFO] [stderr]   Downloaded color_quant v1.1.0
[INFO] [stderr]   Downloaded humantime v2.1.0
[INFO] [stderr]   Downloaded env_logger v0.8.3
[INFO] [stderr]   Downloaded gif v0.11.2
[INFO] [stderr]   Downloaded weezl v0.1.5
[INFO] [stderr]   Downloaded rusqlite v0.25.1
[INFO] [stderr]   Downloaded image v0.23.14
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded ahash v0.4.7
[INFO] [stderr]   Downloaded csv v1.1.6
[INFO] [stderr]   Downloaded tar v0.4.33
[INFO] [stderr]   Downloaded backtrace v0.3.58
[INFO] [stderr]   Downloaded tiff v0.6.1
[INFO] [stderr]   Downloaded libsqlite3-sys v0.22.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 0f97d1c4695ca878801727906e92b5b1aad0f05c3bf1d07a0f743c406c36ddea
[INFO] running `Command { std: "docker" "start" "-a" "0f97d1c4695ca878801727906e92b5b1aad0f05c3bf1d07a0f743c406c36ddea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f97d1c4695ca878801727906e92b5b1aad0f05c3bf1d07a0f743c406c36ddea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f97d1c4695ca878801727906e92b5b1aad0f05c3bf1d07a0f743c406c36ddea", kill_on_drop: false }`
[INFO] [stdout] 0f97d1c4695ca878801727906e92b5b1aad0f05c3bf1d07a0f743c406c36ddea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 3bb3e035368c651dd1471279dd2e3192b28d699df938c6e72a64ed59038a3a00
[INFO] running `Command { std: "docker" "start" "-a" "3bb3e035368c651dd1471279dd2e3192b28d699df938c6e72a64ed59038a3a00", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling ahash v0.4.7
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling futures-core v0.3.14
[INFO] [stderr]    Compiling futures-task v0.3.14
[INFO] [stderr]    Compiling futures-sink v0.3.14
[INFO] [stderr]    Compiling futures-io v0.3.14
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling httpdate v1.0.0
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling bytemuck v1.5.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling ipnet v2.3.0
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr] error: could not compile `gimli`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name gimli --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gimli-0.23.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="read"' -C metadata=96bbd316763549a0 -C extra-filename=-96bbd316763549a0 --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" "3bb3e035368c651dd1471279dd2e3192b28d699df938c6e72a64ed59038a3a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb3e035368c651dd1471279dd2e3192b28d699df938c6e72a64ed59038a3a00", kill_on_drop: false }`
[INFO] [stdout] 3bb3e035368c651dd1471279dd2e3192b28d699df938c6e72a64ed59038a3a00