[INFO] cloning repository https://github.com/sassman/edu-tdd-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sassman/edu-tdd-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassman%2Fedu-tdd-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassman%2Fedu-tdd-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9bb52521fd80bbc1da33faa43282b2ef1b08f98
[INFO] checking sassman/edu-tdd-rust against master#d2eadb7a94ef8c9deb5137695df33cd1fc5aee92 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassman%2Fedu-tdd-rust" "/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/sassman/edu-tdd-rust on toolchain d2eadb7a94ef8c9deb5137695df33cd1fc5aee92
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sassman/edu-tdd-rust
[INFO] finished tweaking git repo https://github.com/sassman/edu-tdd-rust
[INFO] tweaked toml for git repo https://github.com/sassman/edu-tdd-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sassman/edu-tdd-rust 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" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded speculate v0.1.2
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bca08ee37d9075d4098c95e51189ca35a678e6c2eb049fcc49412fcf742c3e8a
[INFO] running `Command { std: "docker" "start" "-a" "bca08ee37d9075d4098c95e51189ca35a678e6c2eb049fcc49412fcf742c3e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bca08ee37d9075d4098c95e51189ca35a678e6c2eb049fcc49412fcf742c3e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bca08ee37d9075d4098c95e51189ca35a678e6c2eb049fcc49412fcf742c3e8a", kill_on_drop: false }`
[INFO] [stdout] bca08ee37d9075d4098c95e51189ca35a678e6c2eb049fcc49412fcf742c3e8a
[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=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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c07a65b84c0e3c2f0cd544a7177d725acf27041b8c925221990c8b2268d8a3e7
[INFO] running `Command { std: "docker" "start" "-a" "c07a65b84c0e3c2f0cd544a7177d725acf27041b8c925221990c8b2268d8a3e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking dev_challenge_47 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `proc-macro2` (build script)
[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/d2eadb7a94ef8c9deb5137695df33cd1fc5aee92/bin/rustc --crate-name build_script_build --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-0.4.30/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="nightly"' --cfg 'feature="proc-macro"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "nightly", "proc-macro", "span-locations"))' -C metadata=5b45112a07348993 -C extra-filename=-8a7dc1f522b50733 --out-dir /opt/rustwide/target/debug/build/proc-macro2-8a7dc1f522b50733 -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "c07a65b84c0e3c2f0cd544a7177d725acf27041b8c925221990c8b2268d8a3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c07a65b84c0e3c2f0cd544a7177d725acf27041b8c925221990c8b2268d8a3e7", kill_on_drop: false }`
[INFO] [stdout] c07a65b84c0e3c2f0cd544a7177d725acf27041b8c925221990c8b2268d8a3e7