[INFO] cloning repository https://github.com/chrjabs/pidgeons
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrjabs/pidgeons" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrjabs%2Fpidgeons", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrjabs%2Fpidgeons'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a57126bb1764e752045c7f2f19e47eb66c9ac94d
[INFO] building chrjabs/pidgeons against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrjabs%2Fpidgeons" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chrjabs/pidgeons 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/chrjabs/pidgeons
[INFO] finished tweaking git repo https://github.com/chrjabs/pidgeons
[INFO] tweaked toml for git repo https://github.com/chrjabs/pidgeons written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chrjabs/pidgeons 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] [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03ef97c8e56ac05a4141117fc7f45701b8750a1375773056be5e30c83ee6fe44
[INFO] running `Command { std: "docker" "start" "-a" "03ef97c8e56ac05a4141117fc7f45701b8750a1375773056be5e30c83ee6fe44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03ef97c8e56ac05a4141117fc7f45701b8750a1375773056be5e30c83ee6fe44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03ef97c8e56ac05a4141117fc7f45701b8750a1375773056be5e30c83ee6fe44", kill_on_drop: false }`
[INFO] [stdout] 03ef97c8e56ac05a4141117fc7f45701b8750a1375773056be5e30c83ee6fe44
[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=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] 06297f5d47c568eb1746c88f9c2ff88824b93616b8a56998e2bf793ebb057800
[INFO] running `Command { std: "docker" "start" "-a" "06297f5d47c568eb1746c88f9c2ff88824b93616b8a56998e2bf793ebb057800", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling pidgeons v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/ops.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/ops.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/types.rs:258:9
[INFO] [stdout]     |
[INFO] [stdout] 257 |         todo!();
[INFO] [stdout]     |         ------- any code following this expression is unreachable
[INFO] [stdout] 258 |         write!(f, "  qed -1")
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetakOdk7i/full.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pidgeons` (lib) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "06297f5d47c568eb1746c88f9c2ff88824b93616b8a56998e2bf793ebb057800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06297f5d47c568eb1746c88f9c2ff88824b93616b8a56998e2bf793ebb057800", kill_on_drop: false }`
[INFO] [stdout] 06297f5d47c568eb1746c88f9c2ff88824b93616b8a56998e2bf793ebb057800