[INFO] cloning repository https://github.com/averted/ttt-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/averted/ttt-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faverted%2Fttt-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faverted%2Fttt-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13257b325673e033b73bddd15078fafa8f07660e
[INFO] checking averted/ttt-rs against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faverted%2Fttt-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/averted/ttt-rs
[INFO] finished tweaking git repo https://github.com/averted/ttt-rs
[INFO] tweaked toml for git repo https://github.com/averted/ttt-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/averted/ttt-rs on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/averted/ttt-rs 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]     Updating colored v2.0.0 -> v2.2.0 (available: v3.0.0)
[INFO] [stderr]       Adding windows-sys v0.59.0
[INFO] [stderr]       Adding windows-targets v0.52.6
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.52.6
[INFO] [stderr]       Adding windows_aarch64_msvc v0.52.6
[INFO] [stderr]       Adding windows_i686_gnu v0.52.6
[INFO] [stderr]       Adding windows_i686_gnullvm v0.52.6
[INFO] [stderr]       Adding windows_i686_msvc v0.52.6
[INFO] [stderr]       Adding windows_x86_64_gnu v0.52.6
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.52.6
[INFO] [stderr]       Adding windows_x86_64_msvc v0.52.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 866bb0eb96bbb309f9b70913c1f9a6cb0945328d9257675dfb1b38d39248e944
[INFO] running `Command { std: "docker" "start" "-a" "866bb0eb96bbb309f9b70913c1f9a6cb0945328d9257675dfb1b38d39248e944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "866bb0eb96bbb309f9b70913c1f9a6cb0945328d9257675dfb1b38d39248e944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "866bb0eb96bbb309f9b70913c1f9a6cb0945328d9257675dfb1b38d39248e944", kill_on_drop: false }`
[INFO] [stdout] 866bb0eb96bbb309f9b70913c1f9a6cb0945328d9257675dfb1b38d39248e944
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49412e50148c5aefc0b0275008515d1586a2fdef2e1243ac600af29eff9b5387
[INFO] running `Command { std: "docker" "start" "-a" "49412e50148c5aefc0b0275008515d1586a2fdef2e1243ac600af29eff9b5387", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking colored v2.2.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking ttt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/board.rs:68:29
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let input: String = input.trim().parse().unwrap();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ttt` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/board.rs:68:29
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let input: String = input.trim().parse().unwrap();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ttt` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "49412e50148c5aefc0b0275008515d1586a2fdef2e1243ac600af29eff9b5387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49412e50148c5aefc0b0275008515d1586a2fdef2e1243ac600af29eff9b5387", kill_on_drop: false }`
[INFO] [stdout] 49412e50148c5aefc0b0275008515d1586a2fdef2e1243ac600af29eff9b5387