[INFO] cloning repository https://github.com/curtisxk38/rcheer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/curtisxk38/rcheer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcurtisxk38%2Frcheer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcurtisxk38%2Frcheer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55f1932a5f93e958f035c4a1e9082beaa3b30ab8
[INFO] building curtisxk38/rcheer against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcurtisxk38%2Frcheer" "/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/curtisxk38/rcheer on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/curtisxk38/rcheer
[INFO] finished tweaking git repo https://github.com/curtisxk38/rcheer
[INFO] tweaked toml for git repo https://github.com/curtisxk38/rcheer written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/curtisxk38/rcheer 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "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-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bddf52f7eb70fd73c7d093cd62e2e11ebcaac17303e2f779bf59b41875c1eba3
[INFO] running `Command { std: "docker" "start" "-a" "bddf52f7eb70fd73c7d093cd62e2e11ebcaac17303e2f779bf59b41875c1eba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bddf52f7eb70fd73c7d093cd62e2e11ebcaac17303e2f779bf59b41875c1eba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bddf52f7eb70fd73c7d093cd62e2e11ebcaac17303e2f779bf59b41875c1eba3", kill_on_drop: false }`
[INFO] [stdout] bddf52f7eb70fd73c7d093cd62e2e11ebcaac17303e2f779bf59b41875c1eba3
[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=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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60ed70c8af65ff669cd68278809235821cefd20b781d8c124b9456a9d5d29e83
[INFO] running `Command { std: "docker" "start" "-a" "60ed70c8af65ff669cd68278809235821cefd20b781d8c124b9456a9d5d29e83", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcheer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: named argument `op` is not used by name
[INFO] [stdout]   --> src/ast.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |             repr = format!("{:>width$}\n{left}\n{right}",
[INFO] [stdout]    |                             ---------- this formatting argument uses named argument `op` by position
[INFO] [stdout] 93 |                 op=op,
[INFO] [stdout]    |                 ^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 92 |             repr = format!("{op:>width$}\n{left}\n{right}",
[INFO] [stdout]    |                              ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rcheer` (lib); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/44f415c1d617ebc7b931a243b7b321ef8a6ca47c/bin/rustc --crate-name rcheer_lib --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=d215dfe791f74d8b -C extra-filename=-4e7668c9274c5d56 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn` (exit status: 0)
[INFO] running `Command { std: "docker" "inspect" "60ed70c8af65ff669cd68278809235821cefd20b781d8c124b9456a9d5d29e83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60ed70c8af65ff669cd68278809235821cefd20b781d8c124b9456a9d5d29e83", kill_on_drop: false }`
[INFO] [stdout] 60ed70c8af65ff669cd68278809235821cefd20b781d8c124b9456a9d5d29e83