[INFO] cloning repository https://github.com/svenplb/AntGrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenplb/AntGrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad/refs/heads: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/svenplb/AntGrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenplb/AntGrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad'...
[INFO] [stderr] fatal: write error: No space left on device
[INFO] [stderr] fatal: fetch-pack: invalid index-pack output
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/svenplb/AntGrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenplb/AntGrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad/info/: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 3)
[INFO] cloning repository https://github.com/svenplb/AntGrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenplb/AntGrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-applypatch.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad/hooks/pre-applypatch.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 4)
[INFO] cloning repository https://github.com/svenplb/AntGrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenplb/AntGrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/fsmonitor-watchman.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad/hooks/fsmonitor-watchman.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 5)
[INFO] cloning repository https://github.com/svenplb/AntGrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenplb/AntGrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 6)
[INFO] cloning repository https://github.com/svenplb/AntGrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenplb/AntGrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 7)
[INFO] cloning repository https://github.com/svenplb/AntGrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svenplb/AntGrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 568965a301bc5de70b16ccd9a01268bf07673d7e
[INFO] building svenplb/AntGrad against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvenplb%2FAntGrad" "/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/svenplb/AntGrad 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/svenplb/AntGrad
[INFO] finished tweaking git repo https://github.com/svenplb/AntGrad
[INFO] tweaked toml for git repo https://github.com/svenplb/AntGrad written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/svenplb/AntGrad 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] 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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fdb2409f68c275445d91bd208bdc0bb5e14de8c755cc016a7eb90f12d43e393
[INFO] running `Command { std: "docker" "start" "-a" "2fdb2409f68c275445d91bd208bdc0bb5e14de8c755cc016a7eb90f12d43e393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fdb2409f68c275445d91bd208bdc0bb5e14de8c755cc016a7eb90f12d43e393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fdb2409f68c275445d91bd208bdc0bb5e14de8c755cc016a7eb90f12d43e393", kill_on_drop: false }`
[INFO] [stdout] 2fdb2409f68c275445d91bd208bdc0bb5e14de8c755cc016a7eb90f12d43e393
[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=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] f527ba756c24cb5351a17b954082d4aff3795509d56052b945da4ecc59561da8
[INFO] running `Command { std: "docker" "start" "-a" "f527ba756c24cb5351a17b954082d4aff3795509d56052b945da4ecc59561da8", kill_on_drop: false }`
[INFO] [stderr]    Compiling antgrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]   --> src/main.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn init(data: f64, label: String, children: Vec<Value>) -> Value {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "f527ba756c24cb5351a17b954082d4aff3795509d56052b945da4ecc59561da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f527ba756c24cb5351a17b954082d4aff3795509d56052b945da4ecc59561da8", kill_on_drop: false }`
[INFO] [stdout] f527ba756c24cb5351a17b954082d4aff3795509d56052b945da4ecc59561da8
[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=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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1913e35a72cadda48812593d10d726cdfcb265a4ab2622528a9490816f1a8c3a
[INFO] running `Command { std: "docker" "start" "-a" "1913e35a72cadda48812593d10d726cdfcb265a4ab2622528a9490816f1a8c3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling antgrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `label`
[INFO] [stdout]   --> src/main.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn init(data: f64, label: String, children: Vec<Value>) -> Value {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_label`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "1913e35a72cadda48812593d10d726cdfcb265a4ab2622528a9490816f1a8c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1913e35a72cadda48812593d10d726cdfcb265a4ab2622528a9490816f1a8c3a", kill_on_drop: false }`
[INFO] [stdout] 1913e35a72cadda48812593d10d726cdfcb265a4ab2622528a9490816f1a8c3a