[INFO] fetching crate crate_usb 0.1.0...
[INFO] testing crate_usb-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate crate_usb 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate crate_usb 0.1.0
[INFO] finished tweaking crates.io crate crate_usb 0.1.0
[INFO] tweaked toml for crates.io crate crate_usb 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate crate_usb 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages to latest compatible versions
[INFO] [stderr]       Adding core-foundation v0.10.0 (available: v0.10.1)
[INFO] [stderr]       Adding quote v1.0.40 (available: v1.0.42)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serialport v4.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7807ba87b4454f8161d89c335c8ccf8923a2a31c21311e79ee819f3eafe7966f
[INFO] running `Command { std: "docker" "start" "-a" "7807ba87b4454f8161d89c335c8ccf8923a2a31c21311e79ee819f3eafe7966f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7807ba87b4454f8161d89c335c8ccf8923a2a31c21311e79ee819f3eafe7966f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7807ba87b4454f8161d89c335c8ccf8923a2a31c21311e79ee819f3eafe7966f", kill_on_drop: false }`
[INFO] [stdout] 7807ba87b4454f8161d89c335c8ccf8923a2a31c21311e79ee819f3eafe7966f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db40ace3da6c1576a018f899d99f3a6b0beac4a5a1b5e3e44acb1e422bf25528
[INFO] running `Command { std: "docker" "start" "-a" "db40ace3da6c1576a018f899d99f3a6b0beac4a5a1b5e3e44acb1e422bf25528", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling mio v1.1.0
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling libudev v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling unescaper v0.1.6
[INFO] [stderr]    Compiling serialport v4.8.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling crate_usb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Deserializer`
[INFO] [stdout]  --> src/lib.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deserializer`
[INFO] [stdout]  --> src/mod_usb/usb_serial.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `count` is never read
[INFO] [stdout]    --> src/mod_usb/usb_serial.rs:217:29
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]    --> src/mod_usb/usb_serial.rs:217:29
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/mod_usb/usb_serial.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |     let mut count = 0;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `count` is never read
[INFO] [stdout]    --> src/lib.rs:185:29
[INFO] [stdout]     |
[INFO] [stdout] 185 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]    --> src/lib.rs:185:29
[INFO] [stdout]     |
[INFO] [stdout] 185 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/lib.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let mut count = 0;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.11s
[INFO] running `Command { std: "docker" "inspect" "db40ace3da6c1576a018f899d99f3a6b0beac4a5a1b5e3e44acb1e422bf25528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db40ace3da6c1576a018f899d99f3a6b0beac4a5a1b5e3e44acb1e422bf25528", kill_on_drop: false }`
[INFO] [stdout] db40ace3da6c1576a018f899d99f3a6b0beac4a5a1b5e3e44acb1e422bf25528
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6637b87092a66f9f21860147555334897acf7aef49dc43ae29aeb6893fd6f182
[INFO] running `Command { std: "docker" "start" "-a" "6637b87092a66f9f21860147555334897acf7aef49dc43ae29aeb6893fd6f182", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `Deserializer`
[INFO] [stdout]  --> src/lib.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deserializer`
[INFO] [stdout]  --> src/mod_usb/usb_serial.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `count` is never read
[INFO] [stdout]    --> src/mod_usb/usb_serial.rs:217:29
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]    --> src/mod_usb/usb_serial.rs:217:29
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crate_usb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/mod_usb/usb_serial.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |     let mut count = 0;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `count` is never read
[INFO] [stdout]    --> src/lib.rs:185:29
[INFO] [stdout]     |
[INFO] [stdout] 185 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]    --> src/lib.rs:185:29
[INFO] [stdout]     |
[INFO] [stdout] 185 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/lib.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let mut count = 0;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deserializer`
[INFO] [stdout]  --> src/lib.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deserializer`
[INFO] [stdout]  --> src/mod_usb/usb_serial.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde::{Deserialize, Deserializer, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `count` is never read
[INFO] [stdout]    --> src/mod_usb/usb_serial.rs:217:29
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]    --> src/mod_usb/usb_serial.rs:217:29
[INFO] [stdout]     |
[INFO] [stdout] 217 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/mod_usb/usb_serial.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 |     let mut count = 0;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `count` is never read
[INFO] [stdout]    --> src/lib.rs:185:29
[INFO] [stdout]     |
[INFO] [stdout] 185 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]    --> src/lib.rs:185:29
[INFO] [stdout]     |
[INFO] [stdout] 185 | ...                   count += 1;
[INFO] [stdout]     |                       ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]    --> src/lib.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |     let mut count = 0;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "6637b87092a66f9f21860147555334897acf7aef49dc43ae29aeb6893fd6f182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6637b87092a66f9f21860147555334897acf7aef49dc43ae29aeb6893fd6f182", kill_on_drop: false }`
[INFO] [stdout] 6637b87092a66f9f21860147555334897acf7aef49dc43ae29aeb6893fd6f182
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2beb690e0ad6d86b77c1abb1790df0136cb05da5e5ac6fd0b8646b718dc39ccc
[INFO] running `Command { std: "docker" "start" "-a" "2beb690e0ad6d86b77c1abb1790df0136cb05da5e5ac6fd0b8646b718dc39ccc", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Deserializer`
[INFO] [stderr]  --> src/lib.rs:3:26
[INFO] [stderr]   |
[INFO] [stderr] 3 | use serde::{Deserialize, Deserializer, Serialize};
[INFO] [stderr]   |                          ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Deserializer`
[INFO] [stderr]  --> src/mod_usb/usb_serial.rs:3:26
[INFO] [stderr]   |
[INFO] [stderr] 3 | use serde::{Deserialize, Deserializer, Serialize};
[INFO] [stderr]   |                          ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `count` is never read
[INFO] [stderr]    --> src/mod_usb/usb_serial.rs:217:29
[INFO] [stderr]     |
[INFO] [stderr] 217 | ...                   count += 1;
[INFO] [stderr]     |                       ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean to capture by reference instead?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count` is never read
[INFO] [stderr]    --> src/mod_usb/usb_serial.rs:217:29
[INFO] [stderr]     |
[INFO] [stderr] 217 | ...                   count += 1;
[INFO] [stderr]     |                       ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/mod_usb/usb_serial.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |     let mut count = 0;
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `count` is never read
[INFO] [stderr]    --> src/lib.rs:185:29
[INFO] [stderr]     |
[INFO] [stderr] 185 | ...                   count += 1;
[INFO] [stderr]     |                       ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean to capture by reference instead?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count` is never read
[INFO] [stderr]    --> src/lib.rs:185:29
[INFO] [stderr]     |
[INFO] [stderr] 185 | ...                   count += 1;
[INFO] [stderr]     |                       ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stderr]    --> src/lib.rs:161:9
[INFO] [stderr]     |
[INFO] [stderr] 161 |     let mut count = 0;
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stderr] 
[INFO] [stderr] warning: `crate_usb` (lib) generated 8 warnings (run `cargo fix --lib -p crate_usb` to apply 4 suggestions)
[INFO] [stderr] warning: `crate_usb` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/crate_usb-de0e21d9586585fa)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test mod_usb::usb_serial::tests::test_get_serial_port ... ok
[INFO] [stdout] test tests::test_get_serial_port ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests crate_usb
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2beb690e0ad6d86b77c1abb1790df0136cb05da5e5ac6fd0b8646b718dc39ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2beb690e0ad6d86b77c1abb1790df0136cb05da5e5ac6fd0b8646b718dc39ccc", kill_on_drop: false }`
[INFO] [stdout] 2beb690e0ad6d86b77c1abb1790df0136cb05da5e5ac6fd0b8646b718dc39ccc
