[INFO] fetching crate keybob 0.4.0...
[INFO] building keybob-0.4.0 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate keybob 0.4.0 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate keybob 0.4.0 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate keybob 0.4.0
[INFO] finished tweaking crates.io crate keybob 0.4.0
[INFO] tweaked toml for crates.io crate keybob 0.4.0 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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 cmac v0.5.1
[INFO] [stderr]   Downloaded pbkdf2 v0.4.0
[INFO] [stderr]   Downloaded dbl v0.3.1
[INFO] [stderr]   Downloaded aes-siv v0.5.0
[INFO] [stderr]   Downloaded pmac v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 673450a495b866d9953d9d96d02fdf6aa9033f0b57008cf468bdebd4c484ade7
[INFO] running `Command { std: "docker" "start" "-a" "673450a495b866d9953d9d96d02fdf6aa9033f0b57008cf468bdebd4c484ade7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "673450a495b866d9953d9d96d02fdf6aa9033f0b57008cf468bdebd4c484ade7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "673450a495b866d9953d9d96d02fdf6aa9033f0b57008cf468bdebd4c484ade7", kill_on_drop: false }`
[INFO] [stdout] 673450a495b866d9953d9d96d02fdf6aa9033f0b57008cf468bdebd4c484ade7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6710dbce1d9899ec8b67e4994ae26e08f5472b9a9f98b2a2193ed3c2b064115a
[INFO] running `Command { std: "docker" "start" "-a" "6710dbce1d9899ec8b67e4994ae26e08f5472b9a9f98b2a2193ed3c2b064115a", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling sha2 v0.9.5
[INFO] [stderr]    Compiling hmac v0.8.1
[INFO] [stderr]    Compiling blake2 v0.9.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling pbkdf2 v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling keybob v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/serial.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.49s
[INFO] running `Command { std: "docker" "inspect" "6710dbce1d9899ec8b67e4994ae26e08f5472b9a9f98b2a2193ed3c2b064115a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6710dbce1d9899ec8b67e4994ae26e08f5472b9a9f98b2a2193ed3c2b064115a", kill_on_drop: false }`
[INFO] [stdout] 6710dbce1d9899ec8b67e4994ae26e08f5472b9a9f98b2a2193ed3c2b064115a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dda38d4c53005a21c6341c556f3c5327c2099ff84c34601a0664a82bc5c4aec
[INFO] running `Command { std: "docker" "start" "-a" "5dda38d4c53005a21c6341c556f3c5327c2099ff84c34601a0664a82bc5c4aec", kill_on_drop: false }`
[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" "5dda38d4c53005a21c6341c556f3c5327c2099ff84c34601a0664a82bc5c4aec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dda38d4c53005a21c6341c556f3c5327c2099ff84c34601a0664a82bc5c4aec", kill_on_drop: false }`
[INFO] [stdout] 5dda38d4c53005a21c6341c556f3c5327c2099ff84c34601a0664a82bc5c4aec