[INFO] cloning repository https://github.com/PunkGoesPop/linked_list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PunkGoesPop/linked_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPunkGoesPop%2Flinked_list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPunkGoesPop%2Flinked_list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c135e44dcdfca8a634c657184740ef988386aee4
[INFO] testing PunkGoesPop/linked_list against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628-retry-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPunkGoesPop%2Flinked_list" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/PunkGoesPop/linked_list
[INFO] finished tweaking git repo https://github.com/PunkGoesPop/linked_list
[INFO] tweaked toml for git repo https://github.com/PunkGoesPop/linked_list written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/PunkGoesPop/linked_list on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/PunkGoesPop/linked_list 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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44774bf719336b8750acc3b8013afac2e04c11155fb48320a662e9d964ffae68
[INFO] running `Command { std: "docker" "start" "-a" "44774bf719336b8750acc3b8013afac2e04c11155fb48320a662e9d964ffae68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44774bf719336b8750acc3b8013afac2e04c11155fb48320a662e9d964ffae68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44774bf719336b8750acc3b8013afac2e04c11155fb48320a662e9d964ffae68", kill_on_drop: false }`
[INFO] [stdout] 44774bf719336b8750acc3b8013afac2e04c11155fb48320a662e9d964ffae68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5a85d0abae696498393836e9cf67c8684c7b729fcecc4eb52659c04bdf20d7c
[INFO] running `Command { std: "docker" "start" "-a" "a5a85d0abae696498393836e9cf67c8684c7b729fcecc4eb52659c04bdf20d7c", kill_on_drop: false }`
[INFO] [stderr] Compiling linked_list_design v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout] --> src/main.rs:1:11
[INFO] [stdout] |
[INFO] [stdout] 1 | use std::{borrow::Borrow, rc::Rc};
[INFO] [stdout] | ^^^^^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: fields `val` and `next` are never read
[INFO] [stdout] --> src/main.rs:5:5
[INFO] [stdout] |
[INFO] [stdout] 4 | struct Node {
[INFO] [stdout] | ---- fields in this struct
[INFO] [stdout] 5 | val: u32,
[INFO] [stdout] | ^^^
[INFO] [stdout] 6 | next: Rc