[INFO] cloning repository https://github.com/dhruvasagar/url-mapper-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dhruvasagar/url-mapper-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvasagar%2Furl-mapper-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvasagar%2Furl-mapper-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c642151654183ca7fa4048f981232fb054d1191e
[INFO] documenting dhruvasagar/url-mapper-rs against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvasagar%2Furl-mapper-rs" "/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/dhruvasagar/url-mapper-rs on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dhruvasagar/url-mapper-rs
[INFO] finished tweaking git repo https://github.com/dhruvasagar/url-mapper-rs
[INFO] tweaked toml for git repo https://github.com/dhruvasagar/url-mapper-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/dhruvasagar/url-mapper-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a296ab96364e8292f941d2a5e729a0dc125f10c320c685b62d84c81d50142f0b
[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" "a296ab96364e8292f941d2a5e729a0dc125f10c320c685b62d84c81d50142f0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a296ab96364e8292f941d2a5e729a0dc125f10c320c685b62d84c81d50142f0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a296ab96364e8292f941d2a5e729a0dc125f10c320c685b62d84c81d50142f0b", kill_on_drop: false }`
[INFO] [stdout] a296ab96364e8292f941d2a5e729a0dc125f10c320c685b62d84c81d50142f0b
[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" "RUSTDOCFLAGS=--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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dd59081b3a3d62463ed130d9b86faf6eac550a541dbdf7eb11acc39bf6eea473
[INFO] running `Command { std: "docker" "start" "-a" "dd59081b3a3d62463ed130d9b86faf6eac550a541dbdf7eb11acc39bf6eea473", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.2
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]    Compiling sha-1 v0.9.6
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking futures-util v0.3.15
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking ahash v0.7.4
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking hashlink v0.7.0
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr] error: could not compile `futures-util`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name futures_util --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-util-0.3.15/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-await"' --cfg 'feature="async-await-macro"' --cfg 'feature="channel"' --cfg 'feature="default"' --cfg 'feature="futures-channel"' --cfg 'feature="futures-io"' --cfg 'feature="futures-macro"' --cfg 'feature="futures-sink"' --cfg 'feature="io"' --cfg 'feature="memchr"' --cfg 'feature="proc-macro-hack"' --cfg 'feature="proc-macro-nested"' --cfg 'feature="sink"' --cfg 'feature="slab"' --cfg 'feature="std"' -C metadata=b5e72af885e7e321 -C extra-filename=-b5e72af885e7e321 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-98561866a2509dca.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-0b9f6a0b1c7aa7bb.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-da544d03cc1de51c.rmeta --extern futures_macro=/opt/rustwide/target/debug/deps/libfutures_macro-c8ebb8dc8f1792eb.so --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-b2c98dc913f4c94f.rmeta --extern futures_task=/opt/rustwide/target/debug/deps/libfutures_task-257bb2da1f590c9e.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-0721f17babcb5610.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-9385a627c3f2ae8b.rmeta --extern pin_utils=/opt/rustwide/target/debug/deps/libpin_utils-576e633f12357c97.rmeta --extern proc_macro_hack=/opt/rustwide/target/debug/deps/libproc_macro_hack-3db5b274372faa08.so --extern proc_macro_nested=/opt/rustwide/target/debug/deps/libproc_macro_nested-2ab2c475048c0949.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-26d05b350ac0da07.rmeta --cap-lints allow --cfg fn_like_proc_macro` (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" "dd59081b3a3d62463ed130d9b86faf6eac550a541dbdf7eb11acc39bf6eea473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd59081b3a3d62463ed130d9b86faf6eac550a541dbdf7eb11acc39bf6eea473", kill_on_drop: false }`
[INFO] [stdout] dd59081b3a3d62463ed130d9b86faf6eac550a541dbdf7eb11acc39bf6eea473