[INFO] fetching crate usb-dfu-target 0.1.0...
[INFO] checking usb-dfu-target-0.1.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate usb-dfu-target 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate usb-dfu-target 0.1.0
[INFO] finished tweaking crates.io crate usb-dfu-target 0.1.0
[INFO] tweaked toml for crates.io crate usb-dfu-target 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate usb-dfu-target 0.1.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding defmt v0.3.100 (available: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3117be967287c45ee52688ab4fe25f39a3e24fd41aecd31ead7b28265bae6a8
[INFO] running `Command { std: "docker" "start" "-a" "d3117be967287c45ee52688ab4fe25f39a3e24fd41aecd31ead7b28265bae6a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3117be967287c45ee52688ab4fe25f39a3e24fd41aecd31ead7b28265bae6a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3117be967287c45ee52688ab4fe25f39a3e24fd41aecd31ead7b28265bae6a8", kill_on_drop: false }`
[INFO] [stdout] d3117be967287c45ee52688ab4fe25f39a3e24fd41aecd31ead7b28265bae6a8
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81cd498f4de4ba50c6224c882b49a8431d956930144f8c2619c0d8ea14adc4f4
[INFO] running `Command { std: "docker" "start" "-a" "81cd498f4de4ba50c6224c882b49a8431d956930144f8c2619c0d8ea14adc4f4", kill_on_drop: false }`
[INFO] [stderr]     Checking usb-dfu-target v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/lib.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 r => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 r => {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/lib.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |             req => {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/lib.rs:156:22
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 let (state, response): (InternalState, Result<&'a [u8], ()>) =
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `response`
[INFO] [stdout]    --> src/lib.rs:156:29
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 let (state, response): (InternalState, Result<&'a [u8], ()>) =
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `download_state`
[INFO] [stdout]    --> src/lib.rs:159:53
[INFO] [stdout]     |
[INFO] [stdout] 159 |                         InternalState::DownloadBusy(download_state) => todo!(),
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_download_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `download_state`
[INFO] [stdout]    --> src/lib.rs:160:49
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         InternalState::Download(download_state) => todo!(),
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_download_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/lib.rs:161:49
[INFO] [stdout]     |
[INFO] [stdout] 161 |                         InternalState::Upload { offset } => todo!(),
[INFO] [stdout]     |                                                 ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Upload` is never constructed
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum InternalState {
[INFO] [stdout]    |      ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 14 |     Upload { offset: usize },
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/lib.rs:93:17
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 r => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/lib.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 r => {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]    --> src/lib.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |             req => {
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/lib.rs:156:22
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 let (state, response): (InternalState, Result<&'a [u8], ()>) =
[INFO] [stdout]     |                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `response`
[INFO] [stdout]    --> src/lib.rs:156:29
[INFO] [stdout]     |
[INFO] [stdout] 156 |                 let (state, response): (InternalState, Result<&'a [u8], ()>) =
[INFO] [stdout]     |                             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_response`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `download_state`
[INFO] [stdout]    --> src/lib.rs:159:53
[INFO] [stdout]     |
[INFO] [stdout] 159 |                         InternalState::DownloadBusy(download_state) => todo!(),
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_download_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `download_state`
[INFO] [stdout]    --> src/lib.rs:160:49
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         InternalState::Download(download_state) => todo!(),
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_download_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/lib.rs:161:49
[INFO] [stdout]     |
[INFO] [stdout] 161 |                         InternalState::Upload { offset } => todo!(),
[INFO] [stdout]     |                                                 ^^^^^^ help: try ignoring the field: `offset: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Upload` is never constructed
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum InternalState {
[INFO] [stdout]    |      ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 14 |     Upload { offset: usize },
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "81cd498f4de4ba50c6224c882b49a8431d956930144f8c2619c0d8ea14adc4f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81cd498f4de4ba50c6224c882b49a8431d956930144f8c2619c0d8ea14adc4f4", kill_on_drop: false }`
[INFO] [stdout] 81cd498f4de4ba50c6224c882b49a8431d956930144f8c2619c0d8ea14adc4f4