[INFO] cloning repository https://github.com/pyaillet/dive-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pyaillet/dive-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpyaillet%2Fdive-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpyaillet%2Fdive-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1482e4daeffd05fab5ff962d81ad9f371c254e48
[INFO] testing pyaillet/dive-rs against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpyaillet%2Fdive-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pyaillet/dive-rs on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pyaillet/dive-rs
[INFO] finished tweaking git repo https://github.com/pyaillet/dive-rs
[INFO] tweaked toml for git repo https://github.com/pyaillet/dive-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/pyaillet/dive-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f47fc235d4c83fbacd71de3e00bb90cbef22b5978b2f0bfa4088cedcb0584a1a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f47fc235d4c83fbacd71de3e00bb90cbef22b5978b2f0bfa4088cedcb0584a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f47fc235d4c83fbacd71de3e00bb90cbef22b5978b2f0bfa4088cedcb0584a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f47fc235d4c83fbacd71de3e00bb90cbef22b5978b2f0bfa4088cedcb0584a1a", kill_on_drop: false }`
[INFO] [stdout] f47fc235d4c83fbacd71de3e00bb90cbef22b5978b2f0bfa4088cedcb0584a1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edf752a764a2f75191d478f751142b0912bc777e344755256317e315e1843014
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "edf752a764a2f75191d478f751142b0912bc777e344755256317e315e1843014", 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]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling futures-core v0.3.7
[INFO] [stderr]    Compiling futures-io v0.3.7
[INFO] [stderr]    Compiling futures-sink v0.3.7
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling native-tls v0.2.5
[INFO] [stderr]    Compiling lalrpop-util v0.19.1
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]    Compiling isahc v0.9.13
[INFO] [stderr]    Compiling levenshtein v1.0.4
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
[INFO] [stderr]    Compiling futures-task v0.3.7
[INFO] [stderr]    Compiling spinning_top v0.2.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling futures-channel v0.3.7
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling flume v0.9.2
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling sluice v0.5.3
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling async-io v1.2.0
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling async-std v1.7.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling extend v0.1.2
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling puddle v0.1.0
[INFO] [stderr] error: could not compile `async-std`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name async_std --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-std-1.7.0/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="alloc"' --cfg 'feature="async-global-executor"' --cfg 'feature="async-io"' --cfg 'feature="async-mutex"' --cfg 'feature="blocking"' --cfg 'feature="crossbeam-utils"' --cfg 'feature="default"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-core"' --cfg 'feature="futures-io"' --cfg 'feature="futures-lite"' --cfg 'feature="gloo-timers"' --cfg 'feature="kv-log-macro"' --cfg 'feature="log"' --cfg 'feature="memchr"' --cfg 'feature="num_cpus"' --cfg 'feature="once_cell"' --cfg 'feature="pin-project-lite"' --cfg 'feature="pin-utils"' --cfg 'feature="slab"' --cfg 'feature="std"' --cfg 'feature="unstable"' --cfg 'feature="wasm-bindgen-futures"' -C metadata=0b846682172d0ad8 -C extra-filename=-0b846682172d0ad8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern async_global_executor=/opt/rustwide/target/debug/deps/libasync_global_executor-b89aa0a65acb7b74.rmeta --extern async_io=/opt/rustwide/target/debug/deps/libasync_io-76599ee2ba0d286a.rmeta --extern async_mutex=/opt/rustwide/target/debug/deps/libasync_mutex-ad6195bfa15f12bd.rmeta --extern blocking=/opt/rustwide/target/debug/deps/libblocking-f8b5b2bc36f7dda2.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-de677f1baf394ef6.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-bb1a13480d956f9d.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-2b884863646d2a87.rmeta --extern futures_lite=/opt/rustwide/target/debug/deps/libfutures_lite-bee664e2d3df55d6.rmeta --extern kv_log_macro=/opt/rustwide/target/debug/deps/libkv_log_macro-cfc32020baea5b1f.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-b13bad4b715422ac.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-e03602aba27a22bc.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-bc91cfeab248637a.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-debe3179146a0b19.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-635494193ad7aa14.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-1b5011892cb37eb5.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-65742487a18009d6.rmeta --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" "edf752a764a2f75191d478f751142b0912bc777e344755256317e315e1843014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edf752a764a2f75191d478f751142b0912bc777e344755256317e315e1843014", kill_on_drop: false }`
[INFO] [stdout] edf752a764a2f75191d478f751142b0912bc777e344755256317e315e1843014