[INFO] cloning repository https://github.com/mikasaurus2/miktactoe [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikasaurus2/miktactoe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasaurus2%2Fmiktactoe", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasaurus2%2Fmiktactoe'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b7e205b54f5e47c18dc6021b64bc42446f479fbe [INFO] testing mikasaurus2/miktactoe against beta-2026-04-21 for beta-1.96-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasaurus2%2Fmiktactoe" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mikasaurus2/miktactoe [INFO] finished tweaking git repo https://github.com/mikasaurus2/miktactoe [INFO] tweaked toml for git repo https://github.com/mikasaurus2/miktactoe written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mikasaurus2/miktactoe on toolchain beta-2026-04-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mikasaurus2/miktactoe 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] testing mikasaurus2/miktactoe against beta-2026-04-21 for beta-1.96-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikasaurus2%2Fmiktactoe" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mikasaurus2/miktactoe [INFO] finished tweaking git repo https://github.com/mikasaurus2/miktactoe [INFO] tweaked toml for git repo https://github.com/mikasaurus2/miktactoe written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mikasaurus2/miktactoe on toolchain beta-2026-04-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mikasaurus2/miktactoe 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-2026-04-21" "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 signal-hook-mio v0.2.1 [INFO] [stderr] Downloaded crossterm_winapi v0.8.0 [INFO] [stderr] Downloaded lock_api v0.4.5 [INFO] [stderr] Downloaded signal-hook v0.3.10 [INFO] [stderr] Downloaded ppv-lite86 v0.2.14 [INFO] [stderr] Downloaded mio v0.7.14 [INFO] [stderr] Downloaded crossterm v0.20.0 [INFO] [stderr] Downloaded tui v0.16.0 [INFO] [stderr] Downloaded libc v0.2.105 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d7b97faa40718964bf418963d12b440e30a9a1aeacf9476d285f432679be82e2 [INFO] running `Command { std: "docker" "start" "-a" "d7b97faa40718964bf418963d12b440e30a9a1aeacf9476d285f432679be82e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d7b97faa40718964bf418963d12b440e30a9a1aeacf9476d285f432679be82e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7b97faa40718964bf418963d12b440e30a9a1aeacf9476d285f432679be82e2", kill_on_drop: false }` [INFO] [stdout] d7b97faa40718964bf418963d12b440e30a9a1aeacf9476d285f432679be82e2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 71bc67cf1f59d165952fd1b6cca97e6b720a639514a76883a4df46a54d62a88f [INFO] running `Command { std: "docker" "start" "-a" "71bc67cf1f59d165952fd1b6cca97e6b720a639514a76883a4df46a54d62a88f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.105 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling signal-hook v0.3.10 [INFO] [stderr] Compiling smallvec v1.7.0 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling instant v0.1.12 [INFO] [stderr] Compiling ppv-lite86 v0.2.14 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling cassowary v0.3.0 [INFO] [stderr] Compiling lock_api v0.4.5 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling itertools v0.10.1 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling mio v0.7.14 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling parking_lot v0.11.2 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling signal-hook-mio v0.2.1 [INFO] [stderr] Compiling crossterm v0.20.0 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling tui v0.16.0 [INFO] [stderr] Compiling miktactoe v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `ForkingAI` is never constructed [INFO] [stdout] --> src/player/ai_forking.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct ForkingAI<'a> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/player/ai_basic.rs:19:46 [INFO] [stdout] | [INFO] [stdout] 19 | fn new(name: &'a str, marker: Marker) -> BasicAI { [INFO] [stdout] | -- ^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 19 | fn new(name: &'a str, marker: Marker) -> BasicAI<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/player/ai_forking.rs:20:46 [INFO] [stdout] | [INFO] [stdout] 20 | fn new(name: &'a str, marker: Marker) -> ForkingAI { [INFO] [stdout] | -- ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 20 | fn new(name: &'a str, marker: Marker) -> ForkingAI<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/player/ai_optimal.rs:91:46 [INFO] [stdout] | [INFO] [stdout] 91 | fn new(name: &'a str, marker: Marker) -> OptimalAI { [INFO] [stdout] | -- ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 91 | fn new(name: &'a str, marker: Marker) -> OptimalAI<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/player/ai_random.rs:15:22 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(name: &str, marker: Marker) -> RandomAI { [INFO] [stdout] | ^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(name: &str, marker: Marker) -> RandomAI<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/player/ai_random.rs:36:46 [INFO] [stdout] | [INFO] [stdout] 36 | fn new(name: &'a str, marker: Marker) -> RandomAI { [INFO] [stdout] | -- ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 36 | fn new(name: &'a str, marker: Marker) -> RandomAI<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.60s [INFO] running `Command { std: "docker" "inspect" "71bc67cf1f59d165952fd1b6cca97e6b720a639514a76883a4df46a54d62a88f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71bc67cf1f59d165952fd1b6cca97e6b720a639514a76883a4df46a54d62a88f", kill_on_drop: false }` [INFO] [stdout] 71bc67cf1f59d165952fd1b6cca97e6b720a639514a76883a4df46a54d62a88f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e90df2bc7b28c4c5ea22db3445ac8330270d86714a8dfde4a82dff401b610be4 [INFO] running `Command { std: "docker" "start" "-a" "e90df2bc7b28c4c5ea22db3445ac8330270d86714a8dfde4a82dff401b610be4", kill_on_drop: false }` [INFO] [stdout] warning: struct `ForkingAI` is never constructed [INFO] [stdout] --> src/player/ai_forking.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct ForkingAI<'a> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/player/ai_basic.rs:19:46 [INFO] [stdout] | [INFO] [stdout] 19 | fn new(name: &'a str, marker: Marker) -> BasicAI { [INFO] [stdout] | -- ^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 19 | fn new(name: &'a str, marker: Marker) -> BasicAI<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/player/ai_forking.rs:20:46 [INFO] [stdout] | [INFO] [stdout] 20 | fn new(name: &'a str, marker: Marker) -> ForkingAI { [INFO] [stdout] | -- ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 20 | fn new(name: &'a str, marker: Marker) -> ForkingAI<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/player/ai_optimal.rs:91:46 [INFO] [stdout] | [INFO] [stdout] 91 | fn new(name: &'a str, marker: Marker) -> OptimalAI { [INFO] [stdout] | -- ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 91 | fn new(name: &'a str, marker: Marker) -> OptimalAI<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/player/ai_random.rs:15:22 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(name: &str, marker: Marker) -> RandomAI { [INFO] [stdout] | ^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 15 | pub fn new(name: &str, marker: Marker) -> RandomAI<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/player/ai_random.rs:36:46 [INFO] [stdout] | [INFO] [stdout] 36 | fn new(name: &'a str, marker: Marker) -> RandomAI { [INFO] [stdout] | -- ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 36 | fn new(name: &'a str, marker: Marker) -> RandomAI<'a> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling miktactoe v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0596]: cannot borrow `optimal_ai` as mutable, as it is not declared as mutable [INFO] [stdout] --> src/player/ai_optimal.rs:178:20 [INFO] [stdout] | [INFO] [stdout] 178 | assert_eq!(optimal_ai.get_valid_move(&board), CellCoord::new(0, 2)); [INFO] [stdout] | ^^^^^^^^^^ cannot borrow as mutable [INFO] [stdout] | [INFO] [stdout] help: consider changing this to be mutable [INFO] [stdout] | [INFO] [stdout] 177 | let mut optimal_ai = OptimalAI::new("TestOptimal", marker); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0596]: cannot borrow `optimal_ai` as mutable, as it is not declared as mutable [INFO] [stdout] --> src/player/ai_optimal.rs:189:20 [INFO] [stdout] | [INFO] [stdout] 189 | assert_eq!(optimal_ai.get_valid_move(&board), CellCoord::new(0, 2)); [INFO] [stdout] | ^^^^^^^^^^ cannot borrow as mutable [INFO] [stdout] | [INFO] [stdout] help: consider changing this to be mutable [INFO] [stdout] | [INFO] [stdout] 188 | let mut optimal_ai = OptimalAI::new("TestOptimal", Marker::opposite(opponent)); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0596`. [INFO] [stdout] [INFO] [stderr] error: could not compile `miktactoe` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "e90df2bc7b28c4c5ea22db3445ac8330270d86714a8dfde4a82dff401b610be4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e90df2bc7b28c4c5ea22db3445ac8330270d86714a8dfde4a82dff401b610be4", kill_on_drop: false }` [INFO] [stdout] e90df2bc7b28c4c5ea22db3445ac8330270d86714a8dfde4a82dff401b610be4