[INFO] fetching crate c3dio 0.8.0...
[INFO] checking c3dio-0.8.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate c3dio 0.8.0 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate c3dio 0.8.0
[INFO] removed 2 missing examples
[INFO] finished tweaking crates.io crate c3dio 0.8.0
[INFO] tweaked toml for crates.io crate c3dio 0.8.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate c3dio 0.8.0 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] crate crates.io crate c3dio 0.8.0 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0805ec611d4ca5df588f73734cb323784cf585c83670b1b2d7f9d6e7838b8bd3
[INFO] running `Command { std: "docker" "start" "-a" "0805ec611d4ca5df588f73734cb323784cf585c83670b1b2d7f9d6e7838b8bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0805ec611d4ca5df588f73734cb323784cf585c83670b1b2d7f9d6e7838b8bd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0805ec611d4ca5df588f73734cb323784cf585c83670b1b2d7f9d6e7838b8bd3", kill_on_drop: false }`
[INFO] [stdout] 0805ec611d4ca5df588f73734cb323784cf585c83670b1b2d7f9d6e7838b8bd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 87aab63f8040e8d9b28b0e610b9c2fc7033f6941fca4f078c35fc31c307ec1a0
[INFO] running `Command { std: "docker" "start" "-a" "87aab63f8040e8d9b28b0e610b9c2fc7033f6941fca4f078c35fc31c307ec1a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.72
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling thiserror v1.0.53
[INFO] [stderr]     Checking grid v0.10.0
[INFO] [stderr]     Checking touch v0.0.1
[INFO] [stderr]     Checking c3dio v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/parameters.rs:66:14
[INFO] [stdout]    |
[INFO] [stdout] 66 |         for (i, (group, (group_description, parameters))) in self.parameters.iter().enumerate() {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parameters`
[INFO] [stdout]   --> src/parameters.rs:66:45
[INFO] [stdout]    |
[INFO] [stdout] 66 |         for (i, (group, (group_description, parameters))) in self.parameters.iter().enumerate() {
[INFO] [stdout]    |                                             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parameters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<[u8; 512], Infallible>
[INFO] [stdout]    --> src/c3d.rs:219:51
[INFO] [stdout]     |
[INFO] [stdout] 219 |             Processor::from_parameter_start_block(parameter_start_block.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<Vec<u8>, Infallible>
[INFO] [stdout]    --> src/c3d.rs:227:40
[INFO] [stdout]     |
[INFO] [stdout] 227 |           let parameter_bytes: Vec<u8> = bytes[512..(512 * (data_start_block_index - 1))]
[INFO] [stdout]     |  ________________________________________^
[INFO] [stdout] 228 | |             .try_into()
[INFO] [stdout]     | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `c3dio` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "87aab63f8040e8d9b28b0e610b9c2fc7033f6941fca4f078c35fc31c307ec1a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87aab63f8040e8d9b28b0e610b9c2fc7033f6941fca4f078c35fc31c307ec1a0", kill_on_drop: false }`
[INFO] [stdout] 87aab63f8040e8d9b28b0e610b9c2fc7033f6941fca4f078c35fc31c307ec1a0
