[INFO] cloning repository https://github.com/ghostbox5830/new_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ghostbox5830/new_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghostbox5830%2Fnew_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghostbox5830%2Fnew_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37f017195df190bb6476b5f3fd553da66d948165
[INFO] checking ghostbox5830/new_rust against 1.95.0-beta.7 for beta-1.95-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghostbox5830%2Fnew_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ghostbox5830/new_rust
[INFO] finished tweaking git repo https://github.com/ghostbox5830/new_rust
[INFO] tweaked toml for git repo https://github.com/ghostbox5830/new_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ghostbox5830/new_rust on toolchain 1.95.0-beta.7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ghostbox5830/new_rust 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-beta.7" "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 zerocopy-derive v0.8.35
[INFO] [stderr]   Downloaded zerocopy v0.8.35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d7f3d133daa90a2f377084ad650db0cd04f31e0603426643ee242ee02d76486
[INFO] running `Command { std: "docker" "start" "-a" "0d7f3d133daa90a2f377084ad650db0cd04f31e0603426643ee242ee02d76486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d7f3d133daa90a2f377084ad650db0cd04f31e0603426643ee242ee02d76486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d7f3d133daa90a2f377084ad650db0cd04f31e0603426643ee242ee02d76486", kill_on_drop: false }`
[INFO] [stdout] 0d7f3d133daa90a2f377084ad650db0cd04f31e0603426643ee242ee02d76486
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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-beta.7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3b00c452fd83ee61eef88b127bbfb99f2039f4e2de39f964a72e6e432a4c579
[INFO] running `Command { std: "docker" "start" "-a" "c3b00c452fd83ee61eef88b127bbfb99f2039f4e2de39f964a72e6e432a4c579", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]    Compiling rustix v1.1.3
[INFO] [stderr]    Compiling zerocopy v0.8.35
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking tempfile v3.24.0
[INFO] [stderr]     Checking rusty-fork v0.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking proptest v1.9.0
[INFO] [stderr]     Checking new_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `age` and `grades` are never read
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Student {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 36 |     name: Option<String>,
[INFO] [stdout] 37 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 38 |     grades: Vec<u32>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vec3` is never constructed
[INFO] [stdout]   --> src/main.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Vec3<T>(T, T, T);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `greet` is never used
[INFO] [stdout]   --> src/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Student {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 44 |     fn greet(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Success` is never constructed
[INFO] [stdout]   --> src/main.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | enum MyResult {
[INFO] [stdout]    |      -------- variant in this enum
[INFO] [stdout] 50 |     Success(String),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `age` and `grades` are never read
[INFO] [stdout]   --> src/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct Student {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 36 |     name: Option<String>,
[INFO] [stdout] 37 |     age: u32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 38 |     grades: Vec<u32>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vec3` is never constructed
[INFO] [stdout]   --> src/main.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Vec3<T>(T, T, T);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `greet` is never used
[INFO] [stdout]   --> src/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Student {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 44 |     fn greet(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Success` is never constructed
[INFO] [stdout]   --> src/main.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | enum MyResult {
[INFO] [stdout]    |      -------- variant in this enum
[INFO] [stdout] 50 |     Success(String),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.53s
[INFO] running `Command { std: "docker" "inspect" "c3b00c452fd83ee61eef88b127bbfb99f2039f4e2de39f964a72e6e432a4c579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3b00c452fd83ee61eef88b127bbfb99f2039f4e2de39f964a72e6e432a4c579", kill_on_drop: false }`
[INFO] [stdout] c3b00c452fd83ee61eef88b127bbfb99f2039f4e2de39f964a72e6e432a4c579