[INFO] cloning repository https://github.com/jm-alan/futures-the-hard-way
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jm-alan/futures-the-hard-way" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjm-alan%2Ffutures-the-hard-way", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjm-alan%2Ffutures-the-hard-way'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b663a4dff874dac714555ad0dee80b0b73b9e719
[INFO] checking jm-alan/futures-the-hard-way against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjm-alan%2Ffutures-the-hard-way" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jm-alan/futures-the-hard-way on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jm-alan/futures-the-hard-way
[INFO] finished tweaking git repo https://github.com/jm-alan/futures-the-hard-way
[INFO] tweaked toml for git repo https://github.com/jm-alan/futures-the-hard-way written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jm-alan/futures-the-hard-way 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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d44e4288ae4dd60ce88f85ee290e98e6f5fb3820f787de790a43278523457647
[INFO] running `Command { std: "docker" "start" "-a" "d44e4288ae4dd60ce88f85ee290e98e6f5fb3820f787de790a43278523457647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d44e4288ae4dd60ce88f85ee290e98e6f5fb3820f787de790a43278523457647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d44e4288ae4dd60ce88f85ee290e98e6f5fb3820f787de790a43278523457647", kill_on_drop: false }`
[INFO] [stdout] d44e4288ae4dd60ce88f85ee290e98e6f5fb3820f787de790a43278523457647
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65271e15e64bc239abcd61da2ca979b8bbeb7d5e773b3517f765a261195fc452
[INFO] running `Command { std: "docker" "start" "-a" "65271e15e64bc239abcd61da2ca979b8bbeb7d5e773b3517f765a261195fc452", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-the-hard-way v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `last_checked_timers` is never read
[INFO] [stdout]   --> src/executor.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Executor {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 15 |   tasks: Arc<Mutex<ExecTasks>>,
[INFO] [stdout] 16 |   last_checked_timers: Arc<Mutex<Instant>>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `last_checked_timers` is never read
[INFO] [stdout]   --> src/executor.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Executor {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 15 |   tasks: Arc<Mutex<ExecTasks>>,
[INFO] [stdout] 16 |   last_checked_timers: Arc<Mutex<Instant>>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-the-hard-way` (lib); 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/46424fb5054f211ec836c5c03159f92e46bb35ac/bin/rustc --crate-name futures_the_hard_way --edition=2024 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=c46dafadd3d2e50f -C extra-filename=-76cc1230b4b52ae8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `futures-the-hard-way` (lib 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/46424fb5054f211ec836c5c03159f92e46bb35ac/bin/rustc --crate-name futures_the_hard_way --edition=2024 src/lib.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=b839cd119e32b613 -C extra-filename=-4f764b74a45c2ba7 --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" "65271e15e64bc239abcd61da2ca979b8bbeb7d5e773b3517f765a261195fc452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65271e15e64bc239abcd61da2ca979b8bbeb7d5e773b3517f765a261195fc452", kill_on_drop: false }`
[INFO] [stdout] 65271e15e64bc239abcd61da2ca979b8bbeb7d5e773b3517f765a261195fc452