[INFO] cloning repository https://github.com/jsvana/knowcodeextra.com
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jsvana/knowcodeextra.com" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsvana%2Fknowcodeextra.com", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsvana%2Fknowcodeextra.com'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9dda5bb86c2e307da9afc1bc1ebb777bdc830bf
[INFO] checking jsvana/knowcodeextra.com against 760e1de835e253bf28bbcbfee38b5e8ed9ffe074 for pr-133502-26
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsvana%2Fknowcodeextra.com" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jsvana/knowcodeextra.com
[INFO] finished tweaking git repo https://github.com/jsvana/knowcodeextra.com
[INFO] tweaked toml for git repo https://github.com/jsvana/knowcodeextra.com written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jsvana/knowcodeextra.com on toolchain 760e1de835e253bf28bbcbfee38b5e8ed9ffe074
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jsvana/knowcodeextra.com 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" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a5c5be7a6bb70722c0b791935b1558dd9a02ce60fd24341964704891e1a71fd5
[INFO] running `Command { std: "docker" "start" "a5c5be7a6bb70722c0b791935b1558dd9a02ce60fd24341964704891e1a71fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5c5be7a6bb70722c0b791935b1558dd9a02ce60fd24341964704891e1a71fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a5c5be7a6bb70722c0b791935b1558dd9a02ce60fd24341964704891e1a71fd5" "/opt/rustwide/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5c5be7a6bb70722c0b791935b1558dd9a02ce60fd24341964704891e1a71fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a5c5be7a6bb70722c0b791935b1558dd9a02ce60fd24341964704891e1a71fd5" "/opt/rustwide/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: fields `question_id`, `correct`, `user_answer`, and `correct_answer` are never read
[INFO] [stdout]   --> src/grading.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct QuestionResult {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 18 |     pub question_id: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 19 |     pub correct: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 20 |     pub user_answer: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 21 |     pub correct_answer: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `QuestionResult` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `question_id`, `user_answer`, and `correct_answer` are never read
[INFO] [stdout]   --> src/grading.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct QuestionResult {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 18 |     pub question_id: String,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 19 |     pub correct: bool,
[INFO] [stdout] 20 |     pub user_answer: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 21 |     pub correct_answer: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `QuestionResult` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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 47s
[INFO] running `Command { std: "docker" "inspect" "a5c5be7a6bb70722c0b791935b1558dd9a02ce60fd24341964704891e1a71fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5c5be7a6bb70722c0b791935b1558dd9a02ce60fd24341964704891e1a71fd5", kill_on_drop: false }`
[INFO] [stdout] a5c5be7a6bb70722c0b791935b1558dd9a02ce60fd24341964704891e1a71fd5
