[INFO] cloning repository https://github.com/mcret/ackermann-compare
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcret/ackermann-compare" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcret%2Fackermann-compare", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcret%2Fackermann-compare'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adf9a32980f81da3a00e4db5e61978c6b604b7b1
[INFO] testing mcret/ackermann-compare against 1.85.0 for beta-1.86-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcret%2Fackermann-compare" "/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/mcret/ackermann-compare on toolchain 1.85.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mcret/ackermann-compare
[INFO] finished tweaking git repo https://github.com/mcret/ackermann-compare
[INFO] tweaked toml for git repo https://github.com/mcret/ackermann-compare written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mcret/ackermann-compare 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" "+1.85.0" "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-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4a51a65addbd7cf0f970fd722ec0ef2a03c1f84583029366a69f08d814ce63a
[INFO] running `Command { std: "docker" "start" "-a" "b4a51a65addbd7cf0f970fd722ec0ef2a03c1f84583029366a69f08d814ce63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4a51a65addbd7cf0f970fd722ec0ef2a03c1f84583029366a69f08d814ce63a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4a51a65addbd7cf0f970fd722ec0ef2a03c1f84583029366a69f08d814ce63a", kill_on_drop: false }`
[INFO] [stdout] b4a51a65addbd7cf0f970fd722ec0ef2a03c1f84583029366a69f08d814ce63a
[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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ae0a7e05cc6746a4a549582f3fbd7059566ff83f5b1c51f9ae49af4ef24c375
[INFO] running `Command { std: "docker" "start" "-a" "4ae0a7e05cc6746a4a549582f3fbd7059566ff83f5b1c51f9ae49af4ef24c375", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.49
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling cesu8 v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling jni-sys v0.3.0
[INFO] [stderr]    Compiling combine v4.6.6
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stdout] error: failed to write /tmp/rustcfqSXkz/lib.rmeta: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4ae0a7e05cc6746a4a549582f3fbd7059566ff83f5b1c51f9ae49af4ef24c375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae0a7e05cc6746a4a549582f3fbd7059566ff83f5b1c51f9ae49af4ef24c375", kill_on_drop: false }`
[INFO] [stdout] 4ae0a7e05cc6746a4a549582f3fbd7059566ff83f5b1c51f9ae49af4ef24c375