[INFO] cloning repository https://github.com/jonhoo/tower-buffer-benchmark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonhoo/tower-buffer-benchmark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Ftower-buffer-benchmark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Ftower-buffer-benchmark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3f402a5678948c542f50009e14a958ad30c2a14
[INFO] testing jonhoo/tower-buffer-benchmark against master#9e136a30a965bf4e63f03095c57df7257bf96fd6 for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Ftower-buffer-benchmark" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonhoo/tower-buffer-benchmark on toolchain 9e136a30a965bf4e63f03095c57df7257bf96fd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jonhoo/tower-buffer-benchmark
[INFO] finished tweaking git repo https://github.com/jonhoo/tower-buffer-benchmark
[INFO] tweaked toml for git repo https://github.com/jonhoo/tower-buffer-benchmark written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jonhoo/tower-buffer-benchmark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quanta v0.3.1
[INFO] [stderr]   Downloaded tower-service v0.2.0
[INFO] [stderr]   Downloaded tower v0.1.0
[INFO] [stderr]   Downloaded tower-util v0.1.0
[INFO] [stderr]   Downloaded crossbeam v0.7.1
[INFO] [stderr]   Downloaded tower-retry v0.1.0
[INFO] [stderr]   Downloaded tower-discover v0.1.0
[INFO] [stderr]   Downloaded tower-load-shed v0.1.0
[INFO] [stderr]   Downloaded tower-layer v0.1.0
[INFO] [stderr]   Downloaded tracing v0.1.2
[INFO] [stderr]   Downloaded tower-limit v0.1.0
[INFO] [stderr]   Downloaded tower-timeout v0.1.0
[INFO] [stderr]   Downloaded tracing-timing v0.2.8
[INFO] [stderr]   Downloaded tracing-core v0.1.1
[INFO] [stderr]   Downloaded tower-buffer v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4b22ddd0367970815c278998385fd8b1f090313a52925eabacfb32ebe692535
[INFO] running `Command { std: "docker" "start" "-a" "e4b22ddd0367970815c278998385fd8b1f090313a52925eabacfb32ebe692535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4b22ddd0367970815c278998385fd8b1f090313a52925eabacfb32ebe692535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b22ddd0367970815c278998385fd8b1f090313a52925eabacfb32ebe692535", kill_on_drop: false }`
[INFO] [stdout] e4b22ddd0367970815c278998385fd8b1f090313a52925eabacfb32ebe692535
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9e136a30a965bf4e63f03095c57df7257bf96fd6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 532c5cc43300b80c67422972fc3d69ae208a8e50ae0dface7d9464da7ca4fe73
[INFO] running `Command { std: "docker" "start" "-a" "532c5cc43300b80c67422972fc3d69ae208a8e50ae0dface7d9464da7ca4fe73", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/cc-45a821e9fad27437`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "532c5cc43300b80c67422972fc3d69ae208a8e50ae0dface7d9464da7ca4fe73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "532c5cc43300b80c67422972fc3d69ae208a8e50ae0dface7d9464da7ca4fe73", kill_on_drop: false }`
[INFO] [stdout] 532c5cc43300b80c67422972fc3d69ae208a8e50ae0dface7d9464da7ca4fe73