[INFO] cloning repository https://github.com/Carbonhell/shuttlings-cch24
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Carbonhell/shuttlings-cch24" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarbonhell%2Fshuttlings-cch24", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarbonhell%2Fshuttlings-cch24'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 839dbbb6d6bc9f25406c17c41acc1a7853d32aa9
[INFO] testing Carbonhell/shuttlings-cch24 against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarbonhell%2Fshuttlings-cch24" "/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/Carbonhell/shuttlings-cch24
[INFO] finished tweaking git repo https://github.com/Carbonhell/shuttlings-cch24
[INFO] tweaked toml for git repo https://github.com/Carbonhell/shuttlings-cch24 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Carbonhell/shuttlings-cch24 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Carbonhell/shuttlings-cch24 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" "+beta-2026-03-05" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "9da11c7d5319c51cc6f08bb68b328b067ee9d442f6e4eb4484f1b5e97d5a8663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9da11c7d5319c51cc6f08bb68b328b067ee9d442f6e4eb4484f1b5e97d5a8663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da11c7d5319c51cc6f08bb68b328b067ee9d442f6e4eb4484f1b5e97d5a8663", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d4ea3ea05f549cdfb0bcbe3360442e619a17c162831346b79046bebcb6a1610
[INFO] running `Command { std: "docker" "start" "-a" "7d4ea3ea05f549cdfb0bcbe3360442e619a17c162831346b79046bebcb6a1610", kill_on_drop: false }`
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[INFO] [stderr]    Compiling shuttlings-cch24 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/challenge_19/routes.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut locked_state = state.write().await;
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Wall` is never constructed
[INFO] [stdout]  --> src/challenge_12/structs.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(crate) enum TileType {
[INFO] [stdout]   |                 -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 8 |     Wall,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TileType` 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 3m 13s
[INFO] running `Command { std: "docker" "inspect" "7d4ea3ea05f549cdfb0bcbe3360442e619a17c162831346b79046bebcb6a1610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4ea3ea05f549cdfb0bcbe3360442e619a17c162831346b79046bebcb6a1610", kill_on_drop: false }`
[INFO] [stdout] 7d4ea3ea05f549cdfb0bcbe3360442e619a17c162831346b79046bebcb6a1610
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01ae34524e26478198ee53e2b8db314de8c9c34ee080452f5fcddb430795e5ab
[INFO] running `Command { std: "docker" "start" "-a" "01ae34524e26478198ee53e2b8db314de8c9c34ee080452f5fcddb430795e5ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling shuttlings-cch24 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/challenge_19/routes.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut locked_state = state.write().await;
[INFO] [stdout]    |         ----^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Wall` is never constructed
[INFO] [stdout]  --> src/challenge_12/structs.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub(crate) enum TileType {
[INFO] [stdout]   |                 -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 8 |     Wall,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TileType` 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 `test` profile [unoptimized + debuginfo] target(s) in 3.24s
[INFO] running `Command { std: "docker" "inspect" "01ae34524e26478198ee53e2b8db314de8c9c34ee080452f5fcddb430795e5ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ae34524e26478198ee53e2b8db314de8c9c34ee080452f5fcddb430795e5ab", kill_on_drop: false }`
[INFO] [stdout] 01ae34524e26478198ee53e2b8db314de8c9c34ee080452f5fcddb430795e5ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d9992263e8494cc120de060a6fe1c6112978ff7d152af4438e903670678ed74
[INFO] running `Command { std: "docker" "start" "-a" "4d9992263e8494cc120de060a6fe1c6112978ff7d152af4438e903670678ed74", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/challenge_19/routes.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut locked_state = state.write().await;
[INFO] [stderr]    |         ----^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Wall` is never constructed
[INFO] [stderr]  --> src/challenge_12/structs.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub(crate) enum TileType {
[INFO] [stderr]   |                 -------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 8 |     Wall,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `TileType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `shuttlings-cch24` (bin "shuttlings-cch24" test) generated 2 warnings (run `cargo fix --bin "shuttlings-cch24" -p shuttlings-cch24 --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/shuttlings_cch24-5f110b1ec49de38c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4d9992263e8494cc120de060a6fe1c6112978ff7d152af4438e903670678ed74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d9992263e8494cc120de060a6fe1c6112978ff7d152af4438e903670678ed74", kill_on_drop: false }`
[INFO] [stdout] 4d9992263e8494cc120de060a6fe1c6112978ff7d152af4438e903670678ed74
