[INFO] cloning repository https://github.com/emmanuel2406/Rust_projects-reference_cycle [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emmanuel2406/Rust_projects-reference_cycle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmanuel2406%2FRust_projects-reference_cycle", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmanuel2406%2FRust_projects-reference_cycle'... [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 1) [INFO] cloning repository https://github.com/emmanuel2406/Rust_projects-reference_cycle [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emmanuel2406/Rust_projects-reference_cycle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmanuel2406%2FRust_projects-reference_cycle", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmanuel2406%2FRust_projects-reference_cycle'... [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/emmanuel2406/Rust_projects-reference_cycle [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emmanuel2406/Rust_projects-reference_cycle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmanuel2406%2FRust_projects-reference_cycle", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmanuel2406%2FRust_projects-reference_cycle'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bf8760a50acc89aa02daac37accc964f78811a5e [INFO] checking emmanuel2406/Rust_projects-reference_cycle against master#75530e9f72a1990ed2305e16fd51d02f47048f12 for pr-135899 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmanuel2406%2FRust_projects-reference_cycle" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/emmanuel2406/Rust_projects-reference_cycle on toolchain 75530e9f72a1990ed2305e16fd51d02f47048f12 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/emmanuel2406/Rust_projects-reference_cycle [INFO] finished tweaking git repo https://github.com/emmanuel2406/Rust_projects-reference_cycle [INFO] tweaked toml for git repo https://github.com/emmanuel2406/Rust_projects-reference_cycle written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/emmanuel2406/Rust_projects-reference_cycle 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" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a34327f1c903bf31b85ac985ff1f97e24eb8349f7a5ca9f770e6cd5403f32ea9 [INFO] running `Command { std: "docker" "start" "-a" "a34327f1c903bf31b85ac985ff1f97e24eb8349f7a5ca9f770e6cd5403f32ea9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a34327f1c903bf31b85ac985ff1f97e24eb8349f7a5ca9f770e6cd5403f32ea9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a34327f1c903bf31b85ac985ff1f97e24eb8349f7a5ca9f770e6cd5403f32ea9", kill_on_drop: false }` [INFO] [stdout] a34327f1c903bf31b85ac985ff1f97e24eb8349f7a5ca9f770e6cd5403f32ea9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:6475c868a6d27846ca172efb246699580b64b57a5b3744ef73949e850a31b38a" "/opt/rustwide/cargo-home/bin/cargo" "+75530e9f72a1990ed2305e16fd51d02f47048f12" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fe0c95a8618a81bac0ef6e938442574d7f16df1bb10e3fe15630241e6bd7dd8a [INFO] running `Command { std: "docker" "start" "-a" "fe0c95a8618a81bac0ef6e938442574d7f16df1bb10e3fe15630241e6bd7dd8a", kill_on_drop: false }` [INFO] [stderr] Checking reference_cycle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | Cons(i32, RefCell>), [INFO] [stdout] | ---- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 7 - Cons(i32, RefCell>), [INFO] [stdout] 7 + Cons((), RefCell>), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | Cons(i32, RefCell>), [INFO] [stdout] | ---- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 7 - Cons(i32, RefCell>), [INFO] [stdout] 7 + Cons((), RefCell>), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] running `Command { std: "docker" "inspect" "fe0c95a8618a81bac0ef6e938442574d7f16df1bb10e3fe15630241e6bd7dd8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe0c95a8618a81bac0ef6e938442574d7f16df1bb10e3fe15630241e6bd7dd8a", kill_on_drop: false }` [INFO] [stdout] fe0c95a8618a81bac0ef6e938442574d7f16df1bb10e3fe15630241e6bd7dd8a