[INFO] cloning repository https://github.com/cnotley/rust-rubric-grader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cnotley/rust-rubric-grader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcnotley%2Frust-rubric-grader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcnotley%2Frust-rubric-grader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 341eddb1455447816e5f6e67bed2d3ed2a52f7ff
[INFO] checking cnotley/rust-rubric-grader/341eddb1455447816e5f6e67bed2d3ed2a52f7ff against master#9050733395f7c10560d49f549e022f411fa28cea for pr-146972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcnotley%2Frust-rubric-grader" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cnotley/rust-rubric-grader
[INFO] finished tweaking git repo https://github.com/cnotley/rust-rubric-grader
[INFO] tweaked toml for git repo https://github.com/cnotley/rust-rubric-grader written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cnotley/rust-rubric-grader on toolchain 9050733395f7c10560d49f549e022f411fa28cea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9050733395f7c10560d49f549e022f411fa28cea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cnotley/rust-rubric-grader 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" "+9050733395f7c10560d49f549e022f411fa28cea" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+9050733395f7c10560d49f549e022f411fa28cea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab9bb8b7588fd7aab862d4ad30897d977ff5b3dcfe9568638b0d3a52885505d5
[INFO] running `Command { std: "docker" "start" "-a" "ab9bb8b7588fd7aab862d4ad30897d977ff5b3dcfe9568638b0d3a52885505d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab9bb8b7588fd7aab862d4ad30897d977ff5b3dcfe9568638b0d3a52885505d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9bb8b7588fd7aab862d4ad30897d977ff5b3dcfe9568638b0d3a52885505d5", kill_on_drop: false }`
[INFO] [stdout] ab9bb8b7588fd7aab862d4ad30897d977ff5b3dcfe9568638b0d3a52885505d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+9050733395f7c10560d49f549e022f411fa28cea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f6c3f279af176dfff2062d36084e864584d9a328b0e055c13d3d35cd2001b6f
[INFO] running `Command { std: "docker" "start" "-a" "0f6c3f279af176dfff2062d36084e864584d9a328b0e055c13d3d35cd2001b6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking clap v4.5.50
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking grader-cli v0.1.0 (/opt/rustwide/workdir/grader-cli)
[INFO] [stdout] warning: value assigned to `semantic_passed_opt` is never read
[INFO] [stdout]    --> grader-cli/src/grader.rs:103:47
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut semantic_passed_opt: Option<bool> = None;
[INFO] [stdout]     |                                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `semantic_passed_opt` is never read
[INFO] [stdout]    --> grader-cli/src/grader.rs:103:47
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut semantic_passed_opt: Option<bool> = None;
[INFO] [stdout]     |                                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.99s
[INFO] running `Command { std: "docker" "inspect" "0f6c3f279af176dfff2062d36084e864584d9a328b0e055c13d3d35cd2001b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f6c3f279af176dfff2062d36084e864584d9a328b0e055c13d3d35cd2001b6f", kill_on_drop: false }`
[INFO] [stdout] 0f6c3f279af176dfff2062d36084e864584d9a328b0e055c13d3d35cd2001b6f