[INFO] cloning repository https://github.com/ianfisk/rust_playing [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ianfisk/rust_playing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianfisk%2Frust_playing", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianfisk%2Frust_playing'... [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/ianfisk/rust_playing [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ianfisk/rust_playing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianfisk%2Frust_playing", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianfisk%2Frust_playing'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f636d6941839c276f7ca98581579eb4e01d8c02a [INFO] checking ianfisk/rust_playing against master#667247db71ea18c4130dd018d060e7f09d589490 for pr-140824 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fianfisk%2Frust_playing" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ianfisk/rust_playing on toolchain 667247db71ea18c4130dd018d060e7f09d589490 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+667247db71ea18c4130dd018d060e7f09d589490" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/ianfisk/rust_playing [INFO] finished tweaking git repo https://github.com/ianfisk/rust_playing [INFO] tweaked toml for git repo https://github.com/ianfisk/rust_playing written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ianfisk/rust_playing 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" "+667247db71ea18c4130dd018d060e7f09d589490" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+667247db71ea18c4130dd018d060e7f09d589490" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 400c52e5a21c3c8b76612ba5bb6a717784f7c3b8fd42ca78d87545644aaf855f [INFO] running `Command { std: "docker" "start" "-a" "400c52e5a21c3c8b76612ba5bb6a717784f7c3b8fd42ca78d87545644aaf855f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "400c52e5a21c3c8b76612ba5bb6a717784f7c3b8fd42ca78d87545644aaf855f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "400c52e5a21c3c8b76612ba5bb6a717784f7c3b8fd42ca78d87545644aaf855f", kill_on_drop: false }` [INFO] [stdout] 400c52e5a21c3c8b76612ba5bb6a717784f7c3b8fd42ca78d87545644aaf855f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+667247db71ea18c4130dd018d060e7f09d589490" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1209f3fbbeafc7a8774b73b216e0d9982d768aead25208200903f921e3f5ec2e [INFO] running `Command { std: "docker" "start" "-a" "1209f3fbbeafc7a8774b73b216e0d9982d768aead25208200903f921e3f5ec2e", kill_on_drop: false }` [INFO] [stderr] Checking rust_playing v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/ref_cells.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | Cons(Node, Rc), [INFO] [stdout] | ---- ^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 7 - Cons(Node, Rc), [INFO] [stdout] 7 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/ref_cells_original.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | Cons(Rc>, Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 3 - Cons(Rc>, Rc), [INFO] [stdout] 3 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `add_child` and `has_descendant` are never used [INFO] [stdout] --> src/bin/graph_references.rs:33:16 [INFO] [stdout] | [INFO] [stdout] 13 | impl Node { [INFO] [stdout] | -------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn add_child(&mut self, child: NodeRef) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn has_descendant(&self, node: &NodeRef) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `add_child` and `has_descendant` are never used [INFO] [stdout] --> src/bin/graph_references.rs:33:16 [INFO] [stdout] | [INFO] [stdout] 13 | impl Node { [INFO] [stdout] | -------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 33 | pub fn add_child(&mut self, child: NodeRef) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | pub fn has_descendant(&self, node: &NodeRef) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/ref_cells_original.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | Cons(Rc>, Rc), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 3 - Cons(Rc>, Rc), [INFO] [stdout] 3 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/ref_cells.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | Cons(Node, Rc), [INFO] [stdout] | ---- ^^^^^^^^^ ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields 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 fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 7 - Cons(Node, Rc), [INFO] [stdout] 7 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s [INFO] running `Command { std: "docker" "inspect" "1209f3fbbeafc7a8774b73b216e0d9982d768aead25208200903f921e3f5ec2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1209f3fbbeafc7a8774b73b216e0d9982d768aead25208200903f921e3f5ec2e", kill_on_drop: false }` [INFO] [stdout] 1209f3fbbeafc7a8774b73b216e0d9982d768aead25208200903f921e3f5ec2e