[INFO] cloning repository https://github.com/Allstreamer/maelstrom_echo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Allstreamer/maelstrom_echo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllstreamer%2Fmaelstrom_echo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllstreamer%2Fmaelstrom_echo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5422e64e3685c751fe29449a7707edeb027a80d
[INFO] checking Allstreamer/maelstrom_echo against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAllstreamer%2Fmaelstrom_echo" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Allstreamer/maelstrom_echo
[INFO] finished tweaking git repo https://github.com/Allstreamer/maelstrom_echo
[INFO] tweaked toml for git repo https://github.com/Allstreamer/maelstrom_echo written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Allstreamer/maelstrom_echo on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Allstreamer/maelstrom_echo 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded thiserror-impl v1.0.40
[INFO] [stderr]   Downloaded text_io v0.1.12
[INFO] [stderr]   Downloaded thiserror v1.0.40
[INFO] [stderr]   Downloaded thread_local v1.1.7
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded tracing-error v0.2.0
[INFO] [stderr]   Downloaded itoa v1.0.6
[INFO] [stderr]   Downloaded quote v1.0.26
[INFO] [stderr]   Downloaded owo-colors v3.5.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.9
[INFO] [stderr]   Downloaded addr2line v0.19.0
[INFO] [stderr]   Downloaded ryu v1.0.13
[INFO] [stderr]   Downloaded eyre v0.6.8
[INFO] [stderr]   Downloaded cc v1.0.79
[INFO] [stderr]   Downloaded serde_derive v1.0.159
[INFO] [stderr]   Downloaded tracing-core v0.1.30
[INFO] [stderr]   Downloaded serde v1.0.159
[INFO] [stderr]   Downloaded memchr v2.5.0
[INFO] [stderr]   Downloaded backtrace v0.3.67
[INFO] [stderr]   Downloaded serde_json v1.0.95
[INFO] [stderr]   Downloaded miniz_oxide v0.6.2
[INFO] [stderr]   Downloaded sharded-slab v0.1.4
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded color-spantrace v0.2.0
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.16
[INFO] [stderr]   Downloaded once_cell v1.17.1
[INFO] [stderr]   Downloaded syn v2.0.13
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded rustc-demangle v0.1.22
[INFO] [stderr]   Downloaded color-eyre v0.6.2
[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded libc v0.2.141
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71b57dc519a76e7db7b0e1c30cd7fa1b727520c435ccb52449b655259811cbd2
[INFO] running `Command { std: "docker" "start" "-a" "71b57dc519a76e7db7b0e1c30cd7fa1b727520c435ccb52449b655259811cbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b57dc519a76e7db7b0e1c30cd7fa1b727520c435ccb52449b655259811cbd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b57dc519a76e7db7b0e1c30cd7fa1b727520c435ccb52449b655259811cbd2", kill_on_drop: false }`
[INFO] [stdout] 71b57dc519a76e7db7b0e1c30cd7fa1b727520c435ccb52449b655259811cbd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d39562172b8784d2a6d59914fb2913817a8edc4194dbfd6af766a725ea0ee8e
[INFO] running `Command { std: "docker" "start" "-a" "0d39562172b8784d2a6d59914fb2913817a8edc4194dbfd6af766a725ea0ee8e", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]     Checking tracing-subscriber v0.3.16
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking object v0.30.3
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking rustc-demangle v0.1.22
[INFO] [stderr]    Compiling serde_json v1.0.95
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]    Compiling syn v2.0.13
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking text_io v0.1.12
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking addr2line v0.19.0
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking maelstrom_echo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/maelstrom/message.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct Node {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] [stdout] warning: struct `Node` is never constructed
[INFO] [stdout]   --> src/maelstrom/message.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct Node {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0d39562172b8784d2a6d59914fb2913817a8edc4194dbfd6af766a725ea0ee8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d39562172b8784d2a6d59914fb2913817a8edc4194dbfd6af766a725ea0ee8e", kill_on_drop: false }`
[INFO] [stdout] 0d39562172b8784d2a6d59914fb2913817a8edc4194dbfd6af766a725ea0ee8e
