[INFO] cloning repository https://github.com/Ragnaroek/libmaze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ragnaroek/libmaze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagnaroek%2Flibmaze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRagnaroek%2Flibmaze'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9de1e95277d4a7a79eac52adb4154f03a3380d7f
[INFO] checking Ragnaroek/libmaze 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%2FRagnaroek%2Flibmaze" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Ragnaroek/libmaze
[INFO] finished tweaking git repo https://github.com/Ragnaroek/libmaze
[INFO] tweaked toml for git repo https://github.com/Ragnaroek/libmaze written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Ragnaroek/libmaze 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest Rust 1.93.0-nightly compatible versions
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 299770df86162a1e7dc4a50604461c2b13ad631a9ab515e29586161ab7ec3256
[INFO] running `Command { std: "docker" "start" "-a" "299770df86162a1e7dc4a50604461c2b13ad631a9ab515e29586161ab7ec3256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "299770df86162a1e7dc4a50604461c2b13ad631a9ab515e29586161ab7ec3256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "299770df86162a1e7dc4a50604461c2b13ad631a9ab515e29586161ab7ec3256", kill_on_drop: false }`
[INFO] [stdout] 299770df86162a1e7dc4a50604461c2b13ad631a9ab515e29586161ab7ec3256
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b33cb99997eeee66118936066a3b06e041960ce24d248ce7d65f015607bf4b09
[INFO] running `Command { std: "docker" "start" "-a" "b33cb99997eeee66118936066a3b06e041960ce24d248ce7d65f015607bf4b09", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/plm.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let width = buf[5].try_into().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 `maze` (lib test) due to 4 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/plm.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let height = buf[6].try_into().unwrap();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/plm.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let width = buf[5].try_into().unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/plm.rs:72:18
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let height = buf[6].try_into().unwrap();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/plm.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let width = buf[5].try_into().unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/plm.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let height = buf[6].try_into().unwrap();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/plm.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let width = buf[5].try_into().unwrap();
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/plm.rs:72:18
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let height = buf[6].try_into().unwrap();
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `maze` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "b33cb99997eeee66118936066a3b06e041960ce24d248ce7d65f015607bf4b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b33cb99997eeee66118936066a3b06e041960ce24d248ce7d65f015607bf4b09", kill_on_drop: false }`
[INFO] [stdout] b33cb99997eeee66118936066a3b06e041960ce24d248ce7d65f015607bf4b09