[INFO] cloning repository https://github.com/mcdearman/micrograd-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcdearman/micrograd-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcdearman%2Fmicrograd-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcdearman%2Fmicrograd-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] de3ea1a85789b4bd987d3068bfe471d01c680b4f [INFO] checking mcdearman/micrograd-rs against try#411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51 for pr-138844 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcdearman%2Fmicrograd-rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mcdearman/micrograd-rs on toolchain 411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mcdearman/micrograd-rs [INFO] finished tweaking git repo https://github.com/mcdearman/micrograd-rs [INFO] tweaked toml for git repo https://github.com/mcdearman/micrograd-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/mcdearman/micrograd-rs 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" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking mcdearman/micrograd-rs against try#411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51 for pr-138844 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcdearman%2Fmicrograd-rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mcdearman/micrograd-rs on toolchain 411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mcdearman/micrograd-rs [INFO] finished tweaking git repo https://github.com/mcdearman/micrograd-rs [INFO] tweaked toml for git repo https://github.com/mcdearman/micrograd-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/mcdearman/micrograd-rs 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" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded dot-structures v0.1.1 [INFO] [stderr] Downloaded dot-generator v0.2.0 [INFO] [stderr] Downloaded into-attr-derive v0.2.1 [INFO] [stderr] Downloaded into-attr v0.1.1 [INFO] [stderr] Downloaded graphviz-rust v0.6.6 [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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 913869e571a8a39d2fa2d31d4ed3ffd61f995a2642e76822d58bf8b5f1c62823 [INFO] running `Command { std: "docker" "start" "-a" "913869e571a8a39d2fa2d31d4ed3ffd61f995a2642e76822d58bf8b5f1c62823", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "913869e571a8a39d2fa2d31d4ed3ffd61f995a2642e76822d58bf8b5f1c62823", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "913869e571a8a39d2fa2d31d4ed3ffd61f995a2642e76822d58bf8b5f1c62823", kill_on_drop: false }` [INFO] [stdout] 913869e571a8a39d2fa2d31d4ed3ffd61f995a2642e76822d58bf8b5f1c62823 [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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+411f3ca0d8086d5a27e2aaa79b9ff41f53ab2f51" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4d79a13bb28082e27a441a3bc4ae02bd60974066d608e51f30966433edd0fef3 [INFO] running `Command { std: "docker" "start" "-a" "4d79a13bb28082e27a441a3bc4ae02bd60974066d608e51f30966433edd0fef3", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Compiling thiserror v1.0.48 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.6.3 [INFO] [stderr] Compiling ucd-trie v0.1.6 [INFO] [stderr] Compiling rustix v0.38.11 [INFO] [stderr] Compiling dot-structures v0.1.1 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling once_cell v1.18.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking linux-raw-sys v0.4.5 [INFO] [stderr] Checking bitflags v2.4.0 [INFO] [stderr] Compiling into-attr v0.1.1 [INFO] [stderr] Compiling dot-generator v0.2.0 [INFO] [stderr] Checking fastrand v2.0.0 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.29 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling into-attr-derive v0.2.1 [INFO] [stderr] Checking tempfile v3.8.0 [INFO] [stderr] Compiling thiserror-impl v1.0.48 [INFO] [stderr] Compiling pest v2.7.3 [INFO] [stderr] Compiling pest_meta v2.7.3 [INFO] [stderr] Compiling pest_generator v2.7.3 [INFO] [stderr] Compiling pest_derive v2.7.3 [INFO] [stderr] Checking graphviz-rust v0.6.6 [INFO] [stderr] Checking micrograd-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `root` [INFO] [stdout] --> src/value.rs:90:14 [INFO] [stdout] | [INFO] [stdout] 90 | pub fn trace(root: &Value) -> (Vec, Vec<(Value, Value)>) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_root` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/value.rs:91:9 [INFO] [stdout] | [INFO] [stdout] 91 | let mut nodes: Vec = vec![]; [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] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/value.rs:92:9 [INFO] [stdout] | [INFO] [stdout] 92 | let mut edges: Vec<(Value, Value)> = vec![]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `root` [INFO] [stdout] --> src/value.rs:90:14 [INFO] [stdout] | [INFO] [stdout] 90 | pub fn trace(root: &Value) -> (Vec, Vec<(Value, Value)>) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_root` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/value.rs:91:9 [INFO] [stdout] | [INFO] [stdout] 91 | let mut nodes: Vec = vec![]; [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] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/value.rs:92:9 [INFO] [stdout] | [INFO] [stdout] 92 | let mut edges: Vec<(Value, Value)> = vec![]; [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.35s [INFO] running `Command { std: "docker" "inspect" "4d79a13bb28082e27a441a3bc4ae02bd60974066d608e51f30966433edd0fef3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d79a13bb28082e27a441a3bc4ae02bd60974066d608e51f30966433edd0fef3", kill_on_drop: false }` [INFO] [stdout] 4d79a13bb28082e27a441a3bc4ae02bd60974066d608e51f30966433edd0fef3