[INFO] cloning repository https://github.com/elimirks/b64
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/elimirks/b64" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felimirks%2Fb64", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felimirks%2Fb64'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6052dd964d96ff4e79db45b91c460d9f89a09913
[INFO] building elimirks/b64 against try#8b8eff55bd72abbb57167bc42222a7f91d41cb0d for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felimirks%2Fb64" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/elimirks/b64 on toolchain 8b8eff55bd72abbb57167bc42222a7f91d41cb0d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/elimirks/b64
[INFO] finished tweaking git repo https://github.com/elimirks/b64
[INFO] tweaked toml for git repo https://github.com/elimirks/b64 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/elimirks/b64 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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6232a2abda78908786d1b63bb0afeac7e6f5a70cfec3d15998cef4cba8e044f5
[INFO] running `Command { std: "docker" "start" "-a" "6232a2abda78908786d1b63bb0afeac7e6f5a70cfec3d15998cef4cba8e044f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6232a2abda78908786d1b63bb0afeac7e6f5a70cfec3d15998cef4cba8e044f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6232a2abda78908786d1b63bb0afeac7e6f5a70cfec3d15998cef4cba8e044f5", kill_on_drop: false }`
[INFO] [stdout] 6232a2abda78908786d1b63bb0afeac7e6f5a70cfec3d15998cef4cba8e044f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+8b8eff55bd72abbb57167bc42222a7f91d41cb0d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24c7e8de43717e292b4ff33ec149130b7ede73001fcbecd716586951959de145
[INFO] running `Command { std: "docker" "start" "-a" "24c7e8de43717e292b4ff33ec149130b7ede73001fcbecd716586951959de145", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling jemallocator v0.3.2
[INFO] [stderr]    Compiling b64 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `pos` is never read
[INFO] [stdout]   --> src/ast.rs:76:9
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct RSImport {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 76 |     pub pos: Pos,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `b64` (bin "b64"); 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/8b8eff55bd72abbb57167bc42222a7f91d41cb0d/bin/rustc --crate-name b64 --edition=2018 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=b1f737c281fb3f7a -C extra-filename=-c7c0b919d1e804f4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern jemallocator=/opt/rustwide/target/debug/deps/libjemallocator-1541560f42a7d14c.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/jemalloc-sys-d561f702f214f95b/out/build/lib` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "24c7e8de43717e292b4ff33ec149130b7ede73001fcbecd716586951959de145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24c7e8de43717e292b4ff33ec149130b7ede73001fcbecd716586951959de145", kill_on_drop: false }`
[INFO] [stdout] 24c7e8de43717e292b4ff33ec149130b7ede73001fcbecd716586951959de145