[INFO] cloning repository https://github.com/splurf/enum-unit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/splurf/enum-unit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsplurf%2Fenum-unit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsplurf%2Fenum-unit'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsplurf%2Fenum-unit: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/splurf/enum-unit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/splurf/enum-unit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsplurf%2Fenum-unit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsplurf%2Fenum-unit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55caaab0acaaa685b55786e680a989d0105ae6b2
[INFO] checking splurf/enum-unit against master#a5db378dc14a40dd1580c27fb8362156446382c3 for pr-136490
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsplurf%2Fenum-unit" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/splurf/enum-unit on toolchain a5db378dc14a40dd1580c27fb8362156446382c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/splurf/enum-unit
[INFO] finished tweaking git repo https://github.com/splurf/enum-unit
[INFO] tweaked toml for git repo https://github.com/splurf/enum-unit written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/splurf/enum-unit 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" "+a5db378dc14a40dd1580c27fb8362156446382c3" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77978632c768969644762beff062c058ef2fd22c469fe9ed40c2d9d68f2bd041
[INFO] running `Command { std: "docker" "start" "-a" "77978632c768969644762beff062c058ef2fd22c469fe9ed40c2d9d68f2bd041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77978632c768969644762beff062c058ef2fd22c469fe9ed40c2d9d68f2bd041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77978632c768969644762beff062c058ef2fd22c469fe9ed40c2d9d68f2bd041", kill_on_drop: false }`
[INFO] [stdout] 77978632c768969644762beff062c058ef2fd22c469fe9ed40c2d9d68f2bd041
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a5db378dc14a40dd1580c27fb8362156446382c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d972f12fda9bef404bb86437fd719f667e410037f20b88464c96d5bdbb846abd
[INFO] running `Command { std: "docker" "start" "-a" "d972f12fda9bef404bb86437fd719f667e410037f20b88464c96d5bdbb846abd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]     Checking unicode-ident v1.0.15
[INFO] [stderr] error: failed to run custom build command for `proc-macro2 v1.0.93`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/proc-macro2-e0c068ab4a66d0a8/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(fuzzing)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(no_is_available)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(no_literal_byte_character)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(no_literal_c_string)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(no_source_text)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(proc_macro_span)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(procmacro2_backtrace)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(procmacro2_nightly_testing)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(randomize_layout)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(span_locations)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(super_unstable)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(wrap_proc_macro)
[INFO] [stderr]   cargo:rerun-if-changed=build/probe.rs
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Failed to create /opt/rustwide/target/debug/build/proc-macro2-620c1e5a18209660/out/probe: No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "d972f12fda9bef404bb86437fd719f667e410037f20b88464c96d5bdbb846abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d972f12fda9bef404bb86437fd719f667e410037f20b88464c96d5bdbb846abd", kill_on_drop: false }`
[INFO] [stdout] d972f12fda9bef404bb86437fd719f667e410037f20b88464c96d5bdbb846abd