[INFO] cloning repository https://github.com/DeterminateSystems/nix-netboot-serve
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DeterminateSystems/nix-netboot-serve" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeterminateSystems%2Fnix-netboot-serve", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeterminateSystems%2Fnix-netboot-serve'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c27a01542bd1633243f9d4d3f74fa0436eb68d84
[INFO] testing DeterminateSystems/nix-netboot-serve against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeterminateSystems%2Fnix-netboot-serve" "/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/DeterminateSystems/nix-netboot-serve on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DeterminateSystems/nix-netboot-serve
[INFO] finished tweaking git repo https://github.com/DeterminateSystems/nix-netboot-serve
[INFO] tweaked toml for git repo https://github.com/DeterminateSystems/nix-netboot-serve written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/DeterminateSystems/nix-netboot-serve already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 030246bcb1e09777a6f3d66a8838f6ab96a4ec1ebe24fb4a9f2eb92366728c61
[INFO] running `Command { std: "docker" "start" "-a" "030246bcb1e09777a6f3d66a8838f6ab96a4ec1ebe24fb4a9f2eb92366728c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "030246bcb1e09777a6f3d66a8838f6ab96a4ec1ebe24fb4a9f2eb92366728c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "030246bcb1e09777a6f3d66a8838f6ab96a4ec1ebe24fb4a9f2eb92366728c61", kill_on_drop: false }`
[INFO] [stdout] 030246bcb1e09777a6f3d66a8838f6ab96a4ec1ebe24fb4a9f2eb92366728c61
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d66562f42df91194196fa5d915e09a5e71a6e00bff5e5e48643618b9a3b904ad
[INFO] running `Command { std: "docker" "start" "-a" "d66562f42df91194196fa5d915e09a5e71a6e00bff5e5e48643618b9a3b904ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling nix-netboot-serve v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cpio v0.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling tokio v1.10.1
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling tracing-core v0.1.19
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling rlimit v0.6.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling tungstenite v0.12.0
[INFO] [stderr]    Compiling headers v0.3.4
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr] error: failed to run custom build command for `nix-netboot-serve v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/nix-netboot-serve-796f29b9ed67a34d/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Trying to find "basename"...
[INFO] [stderr]   	Command `basename` is supposedly at "/usr/bin/basename"...
[INFO] [stderr]   	"/usr/bin/basename" is a file, returning that location.
[INFO] [stderr]   Trying to find "bash"...
[INFO] [stderr]   	Command `bash` is supposedly at "/usr/bin/bash"...
[INFO] [stderr]   	"/usr/bin/bash" is a file, returning that location.
[INFO] [stderr]   Trying to find "cpio"...
[INFO] [stderr]   Error: Missing("cpio")
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d66562f42df91194196fa5d915e09a5e71a6e00bff5e5e48643618b9a3b904ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d66562f42df91194196fa5d915e09a5e71a6e00bff5e5e48643618b9a3b904ad", kill_on_drop: false }`
[INFO] [stdout] d66562f42df91194196fa5d915e09a5e71a6e00bff5e5e48643618b9a3b904ad