[INFO] fetching crate lightwave-3d 1.0.0...
[INFO] checking lightwave-3d-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate lightwave-3d 1.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate lightwave-3d 1.0.0
[INFO] finished tweaking crates.io crate lightwave-3d 1.0.0
[INFO] tweaked toml for crates.io crate lightwave-3d 1.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lightwave-3d 1.0.0 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 10 packages to latest compatible versions
[INFO] [stderr]       Adding binrw v0.11.2 (available: v0.15.0)
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 79327c69244e3e42f8b00bef0aa5494407518e7c1fdb490867a623176d480847
[INFO] running `Command { std: "docker" "start" "-a" "79327c69244e3e42f8b00bef0aa5494407518e7c1fdb490867a623176d480847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79327c69244e3e42f8b00bef0aa5494407518e7c1fdb490867a623176d480847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79327c69244e3e42f8b00bef0aa5494407518e7c1fdb490867a623176d480847", kill_on_drop: false }`
[INFO] [stdout] 79327c69244e3e42f8b00bef0aa5494407518e7c1fdb490867a623176d480847
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ef4d1b8760ef4e59b4aaf6612bb587f30d34093f7bb7213f523024e6ad2e2ff8
[INFO] running `Command { std: "docker" "start" "-a" "ef4d1b8760ef4e59b4aaf6612bb587f30d34093f7bb7213f523024e6ad2e2ff8", kill_on_drop: false }`
[INFO] [stderr]    Compiling binrw_derive v0.11.2
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling binrw v0.11.2
[INFO] [stderr]     Checking lightwave-3d v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `BinReadTodo` is never constructed
[INFO] [stdout]  --> src/binrw_helpers.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct BinReadTodo();
[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<usize, Infallible>
[INFO] [stdout]   --> src/lwo2/tags/discontinuous_vertex_mapping.rs:51:18
[INFO] [stdout]    |
[INFO] [stdout] 51 |     #[br(count = dimension)]
[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/lwo2/tags/vertex_mapping.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     #[br(count = dimension)]
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lightwave-3d` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `BinReadTodo` is never constructed
[INFO] [stdout]  --> src/binrw_helpers.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct BinReadTodo();
[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<usize, Infallible>
[INFO] [stdout]   --> src/lwo2/tags/discontinuous_vertex_mapping.rs:51:18
[INFO] [stdout]    |
[INFO] [stdout] 51 |     #[br(count = dimension)]
[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/lwo2/tags/vertex_mapping.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     #[br(count = dimension)]
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lightwave-3d` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ef4d1b8760ef4e59b4aaf6612bb587f30d34093f7bb7213f523024e6ad2e2ff8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef4d1b8760ef4e59b4aaf6612bb587f30d34093f7bb7213f523024e6ad2e2ff8", kill_on_drop: false }`
[INFO] [stdout] ef4d1b8760ef4e59b4aaf6612bb587f30d34093f7bb7213f523024e6ad2e2ff8