[INFO] cloning repository https://github.com/leod/exponentially_slow_compile
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leod/exponentially_slow_compile" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleod%2Fexponentially_slow_compile", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleod%2Fexponentially_slow_compile'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16af064cbc71740ba3fee849ce055602659bb271
[INFO] testing leod/exponentially_slow_compile against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleod%2Fexponentially_slow_compile" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/leod/exponentially_slow_compile
[INFO] finished tweaking git repo https://github.com/leod/exponentially_slow_compile
[INFO] tweaked toml for git repo https://github.com/leod/exponentially_slow_compile written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/leod/exponentially_slow_compile on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/leod/exponentially_slow_compile 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2166dc8b553a97e61c35e27f4a5e8aa03440f1ae6fb00ae5f1b1e5d4842f579c
[INFO] running `Command { std: "docker" "start" "-a" "2166dc8b553a97e61c35e27f4a5e8aa03440f1ae6fb00ae5f1b1e5d4842f579c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2166dc8b553a97e61c35e27f4a5e8aa03440f1ae6fb00ae5f1b1e5d4842f579c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2166dc8b553a97e61c35e27f4a5e8aa03440f1ae6fb00ae5f1b1e5d4842f579c", kill_on_drop: false }`
[INFO] [stdout] 2166dc8b553a97e61c35e27f4a5e8aa03440f1ae6fb00ae5f1b1e5d4842f579c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66154ea33c55b6ebe5aaec56658bff1bfd2576fe8e826bcc7ff43112ba14eae9
[INFO] running `Command { std: "docker" "start" "-a" "66154ea33c55b6ebe5aaec56658bff1bfd2576fe8e826bcc7ff43112ba14eae9", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/.fingerprint/exponentially_slow_compile-515f88d36231d335`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "66154ea33c55b6ebe5aaec56658bff1bfd2576fe8e826bcc7ff43112ba14eae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66154ea33c55b6ebe5aaec56658bff1bfd2576fe8e826bcc7ff43112ba14eae9", kill_on_drop: false }`
[INFO] [stdout] 66154ea33c55b6ebe5aaec56658bff1bfd2576fe8e826bcc7ff43112ba14eae9