[INFO] cloning repository https://github.com/anish-palakurthi/micrograd-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anish-palakurthi/micrograd-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-palakurthi%2Fmicrograd-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-palakurthi%2Fmicrograd-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 751aece47a929395cf41b1cec9d191dadbfbbcda
[INFO] checking anish-palakurthi/micrograd-rust against try#7df376b035b3d12ff0386ad8b45b76dbe020257b for pr-142712
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-palakurthi%2Fmicrograd-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/anish-palakurthi/micrograd-rust
[INFO] finished tweaking git repo https://github.com/anish-palakurthi/micrograd-rust
[INFO] tweaked toml for git repo https://github.com/anish-palakurthi/micrograd-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/anish-palakurthi/micrograd-rust on toolchain 7df376b035b3d12ff0386ad8b45b76dbe020257b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/anish-palakurthi/micrograd-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" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93c9e06eca3d79ddea137948b0aefa210d0d28ce50ed01387a46b6c89a147ea9
[INFO] running `Command { std: "docker" "start" "-a" "93c9e06eca3d79ddea137948b0aefa210d0d28ce50ed01387a46b6c89a147ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93c9e06eca3d79ddea137948b0aefa210d0d28ce50ed01387a46b6c89a147ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93c9e06eca3d79ddea137948b0aefa210d0d28ce50ed01387a46b6c89a147ea9", kill_on_drop: false }`
[INFO] [stdout] 93c9e06eca3d79ddea137948b0aefa210d0d28ce50ed01387a46b6c89a147ea9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+7df376b035b3d12ff0386ad8b45b76dbe020257b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcfacb6f99a6a5c21f3c141bdf6a7108d6ec86a087df83f56d941584b0961377
[INFO] running `Command { std: "docker" "start" "-a" "bcfacb6f99a6a5c21f3c141bdf6a7108d6ec86a087df83f56d941584b0961377", kill_on_drop: false }`
[INFO] [stderr]     Checking micrograd-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmeta3MdFMO"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `micrograd-rust` (bin "micrograd-rust") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let mut a = Value::new(-4.0, vec![], "".to_string());
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `micrograd-rust` (bin "micrograd-rust" test); 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/7df376b035b3d12ff0386ad8b45b76dbe020257b/bin/rustc --crate-name micrograd_rust --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=85eb4d02b40cdfde -C extra-filename=-f76d8caf7c088ff9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "bcfacb6f99a6a5c21f3c141bdf6a7108d6ec86a087df83f56d941584b0961377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcfacb6f99a6a5c21f3c141bdf6a7108d6ec86a087df83f56d941584b0961377", kill_on_drop: false }`
[INFO] [stdout] bcfacb6f99a6a5c21f3c141bdf6a7108d6ec86a087df83f56d941584b0961377