[INFO] cloning repository https://github.com/StrawberryDan/eldorado
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StrawberryDan/eldorado" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStrawberryDan%2Feldorado", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStrawberryDan%2Feldorado'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1056a1c484e534aef783bb24f391b235357625ad
[INFO] checking StrawberryDan/eldorado 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%2FStrawberryDan%2Feldorado" "/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/StrawberryDan/eldorado
[INFO] finished tweaking git repo https://github.com/StrawberryDan/eldorado
[INFO] tweaked toml for git repo https://github.com/StrawberryDan/eldorado written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/StrawberryDan/eldorado 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/StrawberryDan/eldorado 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] 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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06c375a06085131e47d6ed6b78c04846ca6b90c5a4ba09ccb1334ee62da76f0c
[INFO] running `Command { std: "docker" "start" "-a" "06c375a06085131e47d6ed6b78c04846ca6b90c5a4ba09ccb1334ee62da76f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06c375a06085131e47d6ed6b78c04846ca6b90c5a4ba09ccb1334ee62da76f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c375a06085131e47d6ed6b78c04846ca6b90c5a4ba09ccb1334ee62da76f0c", kill_on_drop: false }`
[INFO] [stdout] 06c375a06085131e47d6ed6b78c04846ca6b90c5a4ba09ccb1334ee62da76f0c
[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=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] ef7d80bc0275456f33f7dcba5da02dafb147237fd1fe52ad389ac2211ac81762
[INFO] running `Command { std: "docker" "start" "-a" "ef7d80bc0275456f33f7dcba5da02dafb147237fd1fe52ad389ac2211ac81762", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking eldorado v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated functions `from_file`, `from_string`, and `from_json` are never used
[INFO] [stdout]   --> src/region/mod.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Configuration {
[INFO] [stdout]    | ------------------ associated functions in this implementation
[INFO] [stdout] 27 |     fn from_file(file: impl AsRef<OsStr>) -> Result<Self, String> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn from_string(string: impl AsRef<str>) -> Result<Self, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn from_json(json: JsonValue) -> Result<Self, String> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 4], Infallible>
[INFO] [stdout]    --> src/image/mod.rs:130:34
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let color_acc: [u8; 4] = color_acc.map(|v| (v as f64 / value_acc).round() as u8).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] warning: unnecessary transmute
[INFO] [stdout]   --> src/topography/heightmap.rs:52:46
[INFO] [stdout]    |
[INFO] [stdout] 52 |                         let value = unsafe { std::mem::transmute::<[u8; 2], u16>(bytes) };
[INFO] [stdout]    |                                              -----------------------------------^^^^^^^
[INFO] [stdout]    |                                              |
[INFO] [stdout]    |                                              help: replace this with: `u16::from_ne_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eldorado` (bin "eldorado") due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 4], Infallible>
[INFO] [stdout]    --> src/image/mod.rs:130:34
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let color_acc: [u8; 4] = color_acc.map(|v| (v as f64 / value_acc).round() as u8).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] warning: unnecessary transmute
[INFO] [stdout]   --> src/topography/heightmap.rs:52:46
[INFO] [stdout]    |
[INFO] [stdout] 52 |                         let value = unsafe { std::mem::transmute::<[u8; 2], u16>(bytes) };
[INFO] [stdout]    |                                              -----------------------------------^^^^^^^
[INFO] [stdout]    |                                              |
[INFO] [stdout]    |                                              help: replace this with: `u16::from_ne_bytes`
[INFO] [stdout]    |
[INFO] [stdout]    = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eldorado` (bin "eldorado" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ef7d80bc0275456f33f7dcba5da02dafb147237fd1fe52ad389ac2211ac81762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef7d80bc0275456f33f7dcba5da02dafb147237fd1fe52ad389ac2211ac81762", kill_on_drop: false }`
[INFO] [stdout] ef7d80bc0275456f33f7dcba5da02dafb147237fd1fe52ad389ac2211ac81762
