[INFO] cloning repository https://github.com/raphaelrobert/maelstrom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raphaelrobert/maelstrom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraphaelrobert%2Fmaelstrom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraphaelrobert%2Fmaelstrom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46baa1ecb6823d2bb28c44a89c0e3f04dcddcd82
[INFO] checking raphaelrobert/maelstrom against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraphaelrobert%2Fmaelstrom" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/raphaelrobert/maelstrom on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/raphaelrobert/maelstrom
[INFO] finished tweaking git repo https://github.com/raphaelrobert/maelstrom
[INFO] tweaked toml for git repo https://github.com/raphaelrobert/maelstrom written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8b35a4f37241bb5a11553506abde4895368e118c81b1e13c5df35c7ff7133c3
[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" "b8b35a4f37241bb5a11553506abde4895368e118c81b1e13c5df35c7ff7133c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8b35a4f37241bb5a11553506abde4895368e118c81b1e13c5df35c7ff7133c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8b35a4f37241bb5a11553506abde4895368e118c81b1e13c5df35c7ff7133c3", kill_on_drop: false }`
[INFO] [stdout] b8b35a4f37241bb5a11553506abde4895368e118c81b1e13c5df35c7ff7133c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 903c05873b0d5b5958f9a7d39363b683e4f6fb9913d403f793b8d2a79348eaf1
[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" "903c05873b0d5b5958f9a7d39363b683e4f6fb9913d403f793b8d2a79348eaf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling bindgen v0.54.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling standback v0.2.15
[INFO] [stderr]    Compiling time v0.2.25
[INFO] [stderr]    Compiling cookie v0.14.3
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking bytestring v1.0.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking plotters-svg v0.3.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking tracing v0.1.23
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking idna v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]    Compiling aes-soft v0.6.4
[INFO] [stderr]    Compiling ctr v0.6.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling polyval v0.4.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking sha-1 v0.9.3
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling ghash v0.3.1
[INFO] [stderr]    Compiling aes v0.6.0
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling aes-gcm v0.8.0
[INFO] [stderr] error: could not compile `clap`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name clap /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.3/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="ansi_term"' --cfg 'feature="atty"' --cfg 'feature="color"' --cfg 'feature="default"' --cfg 'feature="strsim"' --cfg 'feature="suggestions"' --cfg 'feature="vec_map"' -C metadata=d93c4545842fe3f3 -C extra-filename=-d93c4545842fe3f3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-efbdc72f5b19d026.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-0417cc5348a435de.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-4fffd70ee714b590.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-19cfe6a09ee12a99.rmeta --extern textwrap=/opt/rustwide/target/debug/deps/libtextwrap-bbb8bda6c23677a0.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-7e94be79d6faaf6a.rmeta --extern vec_map=/opt/rustwide/target/debug/deps/libvec_map-b340327a8728346d.rmeta --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" "903c05873b0d5b5958f9a7d39363b683e4f6fb9913d403f793b8d2a79348eaf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "903c05873b0d5b5958f9a7d39363b683e4f6fb9913d403f793b8d2a79348eaf1", kill_on_drop: false }`
[INFO] [stdout] 903c05873b0d5b5958f9a7d39363b683e4f6fb9913d403f793b8d2a79348eaf1