[INFO] cloning repository https://github.com/dovreshef/word_collector
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dovreshef/word_collector" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdovreshef%2Fword_collector", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdovreshef%2Fword_collector'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d54aa31e30ca66e2ffa5634664c205f363f9d3b
[INFO] checking dovreshef/word_collector against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdovreshef%2Fword_collector" "/workspace/builds/worker-115/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-115/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dovreshef/word_collector on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dovreshef/word_collector
[INFO] finished tweaking git repo https://github.com/dovreshef/word_collector
[INFO] tweaked toml for git repo https://github.com/dovreshef/word_collector written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate git repo https://github.com/dovreshef/word_collector already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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 tracing-attributes v0.1.15
[INFO] [stderr]   Downloaded matchers v0.0.1
[INFO] [stderr]   Downloaded tracing-log v0.1.2
[INFO] [stderr]   Downloaded sharded-slab v0.1.3
[INFO] [stderr]   Downloaded siphasher v0.3.6
[INFO] [stderr]   Downloaded rand_pcg v0.2.1
[INFO] [stderr]   Downloaded bit-vec v0.6.3
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.75
[INFO] [stderr]   Downloaded js-sys v0.3.52
[INFO] [stderr]   Downloaded addr2line v0.16.0
[INFO] [stderr]   Downloaded backtrace v0.3.61
[INFO] [stderr]   Downloaded color-spantrace v0.1.6
[INFO] [stderr]   Downloaded futures-executor v0.3.16
[INFO] [stderr]   Downloaded futures-channel v0.3.16
[INFO] [stderr]   Downloaded futures-util v0.3.16
[INFO] [stderr]   Downloaded openssl v0.10.35
[INFO] [stderr]   Downloaded vcpkg v0.2.15
[INFO] [stderr]   Downloaded socket2 v0.4.1
[INFO] [stderr]   Downloaded futures-io v0.3.16
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.75
[INFO] [stderr]   Downloaded eyre v0.6.5
[INFO] [stderr]   Downloaded indenter v0.3.3
[INFO] [stderr]   Downloaded thread_local v1.1.3
[INFO] [stderr]   Downloaded rustc-demangle v0.1.20
[INFO] [stderr]   Downloaded futures v0.3.16
[INFO] [stderr]   Downloaded serde_json v1.0.66
[INFO] [stderr]   Downloaded tracing-serde v0.1.2
[INFO] [stderr]   Downloaded color-eyre v0.5.11
[INFO] [stderr]   Downloaded urlencoding v2.1.0
[INFO] [stderr]   Downloaded tokio-native-tls v0.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.75
[INFO] [stderr]   Downloaded hyper-tls v0.5.0
[INFO] [stderr]   Downloaded cc v1.0.69
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.25
[INFO] [stderr]   Downloaded markup5ever_rcdom v0.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.75
[INFO] [stderr]   Downloaded futures-macro v0.3.16
[INFO] [stderr]   Downloaded futures-task v0.3.16
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.75
[INFO] [stderr]   Downloaded futures-core v0.3.16
[INFO] [stderr]   Downloaded futures-sink v0.3.16
[INFO] [stderr]   Downloaded openssl-sys v0.9.65
[INFO] [stderr]   Downloaded object v0.26.0
[INFO] [stderr]   Downloaded owo-colors v1.3.0
[INFO] [stderr]   Downloaded tracing-error v0.1.2
[INFO] [stderr]   Downloaded string_cache v0.8.1
[INFO] [stderr]   Downloaded html5ever v0.25.1
[INFO] [stderr]   Downloaded markup5ever v0.10.1
[INFO] [stderr]   Downloaded bit-set v0.5.2
[INFO] [stderr]   Downloaded phf_codegen v0.8.0
[INFO] [stderr]   Downloaded phf_generator v0.8.0
[INFO] [stderr]   Downloaded tendril v0.4.2
[INFO] [stderr]   Downloaded phf_shared v0.8.0
[INFO] [stderr]   Downloaded regex-automata v0.1.10
[INFO] [stderr]   Downloaded serde v1.0.127
[INFO] [stderr]   Downloaded gimli v0.25.0
[INFO] [stderr]   Downloaded select v0.5.0
[INFO] [stderr]   Downloaded phf v0.8.0
[INFO] [stderr]   Downloaded web-sys v0.3.52
[INFO] [stderr]   Downloaded string_cache_codegen v0.5.1
[INFO] [stderr]   Downloaded xml5ever v0.16.1
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0479d62442d6e1895eac22efb141696f6212ad2940cbedd0a07d4e5ef3f79d3
[INFO] running `Command { std: "docker" "start" "-a" "d0479d62442d6e1895eac22efb141696f6212ad2940cbedd0a07d4e5ef3f79d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0479d62442d6e1895eac22efb141696f6212ad2940cbedd0a07d4e5ef3f79d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0479d62442d6e1895eac22efb141696f6212ad2940cbedd0a07d4e5ef3f79d3", kill_on_drop: false }`
[INFO] [stdout] d0479d62442d6e1895eac22efb141696f6212ad2940cbedd0a07d4e5ef3f79d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2738af67d00b5f5f98cec649dfab48ebff61e387b57ffb47f0e9f279414a90b
[INFO] running `Command { std: "docker" "start" "-a" "d2738af67d00b5f5f98cec649dfab48ebff61e387b57ffb47f0e9f279414a90b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "d2738af67d00b5f5f98cec649dfab48ebff61e387b57ffb47f0e9f279414a90b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2738af67d00b5f5f98cec649dfab48ebff61e387b57ffb47f0e9f279414a90b", kill_on_drop: false }`
[INFO] [stdout] d2738af67d00b5f5f98cec649dfab48ebff61e387b57ffb47f0e9f279414a90b