[INFO] cloning repository https://github.com/steel-sword/yal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/steel-sword/yal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteel-sword%2Fyal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteel-sword%2Fyal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 185c71eb7c743582a8f14a3159eb07c102e770cf
[INFO] testing steel-sword/yal against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteel-sword%2Fyal" "/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/steel-sword/yal on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/steel-sword/yal
[INFO] finished tweaking git repo https://github.com/steel-sword/yal
[INFO] tweaked toml for git repo https://github.com/steel-sword/yal written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/steel-sword/yal 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfe05569c0e780c60ab1b3096b89e7d3bc59be12ffe8d49eebe5e66192f76ea5
[INFO] running `Command { std: "docker" "start" "-a" "cfe05569c0e780c60ab1b3096b89e7d3bc59be12ffe8d49eebe5e66192f76ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfe05569c0e780c60ab1b3096b89e7d3bc59be12ffe8d49eebe5e66192f76ea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe05569c0e780c60ab1b3096b89e7d3bc59be12ffe8d49eebe5e66192f76ea5", kill_on_drop: false }`
[INFO] [stdout] cfe05569c0e780c60ab1b3096b89e7d3bc59be12ffe8d49eebe5e66192f76ea5
[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=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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f2bf9622485284ca2c88d34f65f124fe808680f4b307ad20e39f4368cb3e71c
[INFO] running `Command { std: "docker" "start" "-a" "7f2bf9622485284ca2c88d34f65f124fe808680f4b307ad20e39f4368cb3e71c", kill_on_drop: false }`
[INFO] [stderr]    Compiling yal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `previous_exception` is never read
[INFO] [stdout]  --> src/types/exception.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Exception {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 7 |     pub previous_exception: Option<Box<Exception>>,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Exception` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `yal` (bin "yal"); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/bin/rustc --crate-name yal --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=f55b7df1217e3f2e -C extra-filename=-02864527c88872f3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "7f2bf9622485284ca2c88d34f65f124fe808680f4b307ad20e39f4368cb3e71c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f2bf9622485284ca2c88d34f65f124fe808680f4b307ad20e39f4368cb3e71c", kill_on_drop: false }`
[INFO] [stdout] 7f2bf9622485284ca2c88d34f65f124fe808680f4b307ad20e39f4368cb3e71c