[INFO] cloning repository https://github.com/jacobschwantes/readme-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jacobschwantes/readme-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobschwantes%2Freadme-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobschwantes%2Freadme-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 961526b1e6f4585a4f36afc78b531d121de3f05a
[INFO] building jacobschwantes/readme-generator against master#70591dc15db32941fe3595fdbf98e58d6975f95e for pr-127731
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobschwantes%2Freadme-generator" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jacobschwantes/readme-generator on toolchain 70591dc15db32941fe3595fdbf98e58d6975f95e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+70591dc15db32941fe3595fdbf98e58d6975f95e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jacobschwantes/readme-generator
[INFO] finished tweaking git repo https://github.com/jacobschwantes/readme-generator
[INFO] tweaked toml for git repo https://github.com/jacobschwantes/readme-generator written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jacobschwantes/readme-generator 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" "+70591dc15db32941fe3595fdbf98e58d6975f95e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+70591dc15db32941fe3595fdbf98e58d6975f95e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a03962d30cfb8b6d28186c58acccdb1ab6c5fca289547ac1d6184d4b0e49a148
[INFO] running `Command { std: "docker" "start" "-a" "a03962d30cfb8b6d28186c58acccdb1ab6c5fca289547ac1d6184d4b0e49a148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a03962d30cfb8b6d28186c58acccdb1ab6c5fca289547ac1d6184d4b0e49a148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a03962d30cfb8b6d28186c58acccdb1ab6c5fca289547ac1d6184d4b0e49a148", kill_on_drop: false }`
[INFO] [stdout] a03962d30cfb8b6d28186c58acccdb1ab6c5fca289547ac1d6184d4b0e49a148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+70591dc15db32941fe3595fdbf98e58d6975f95e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76aca5bbd2cccbd5c7a8f5e0dd1c175951cdc2afed6a2dbc6d39672c5afb1270
[INFO] running `Command { std: "docker" "start" "-a" "76aca5bbd2cccbd5c7a8f5e0dd1c175951cdc2afed6a2dbc6d39672c5afb1270", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "76aca5bbd2cccbd5c7a8f5e0dd1c175951cdc2afed6a2dbc6d39672c5afb1270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76aca5bbd2cccbd5c7a8f5e0dd1c175951cdc2afed6a2dbc6d39672c5afb1270", kill_on_drop: false }`
[INFO] [stdout] 76aca5bbd2cccbd5c7a8f5e0dd1c175951cdc2afed6a2dbc6d39672c5afb1270