[INFO] fetching crate rs-usbtmc 0.1.1...
[INFO] checking rs-usbtmc-0.1.1 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate rs-usbtmc 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rs-usbtmc 0.1.1 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rs-usbtmc 0.1.1
[INFO] finished tweaking crates.io crate rs-usbtmc 0.1.1
[INFO] tweaked toml for crates.io crate rs-usbtmc 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e39c25d691a916933a8af838fd7e68c9327f3e5e6aae1afd4d2ae40c79d0a54d
[INFO] running `Command { std: "docker" "start" "-a" "e39c25d691a916933a8af838fd7e68c9327f3e5e6aae1afd4d2ae40c79d0a54d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e39c25d691a916933a8af838fd7e68c9327f3e5e6aae1afd4d2ae40c79d0a54d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39c25d691a916933a8af838fd7e68c9327f3e5e6aae1afd4d2ae40c79d0a54d", kill_on_drop: false }`
[INFO] [stdout] e39c25d691a916933a8af838fd7e68c9327f3e5e6aae1afd4d2ae40c79d0a54d
[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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bda83c52499bc820d35bad3ee1343b5d11dcaa04102c7a37745dc9ef4b740e9
[INFO] running `Command { std: "docker" "start" "-a" "6bda83c52499bc820d35bad3ee1343b5d11dcaa04102c7a37745dc9ef4b740e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusb v0.9.4
[INFO] [stderr]    Compiling libusb1-sys v0.7.0
[INFO] [stderr]     Checking rs-usbtmc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `interrupt_ep` is never read
[INFO] [stdout]    --> src/types.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub struct UsbtmcEndpoints {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub interrupt_ep: Option<Endpoint>,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UsbtmcEndpoints` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bcd_version`, `accepts_indicator_pulse_request`, `is_talk_only`, and `is_listen_only` are never read
[INFO] [stdout]    --> src/types.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub struct Capabilities {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 136 |     pub bcd_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 137 |     /// Can accept a control command for pulse
[INFO] [stdout] 138 |     pub accepts_indicator_pulse_request: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 139 |     /// Only sends data to the controller
[INFO] [stdout] 140 |     pub is_talk_only: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 141 |     /// Only accepts data from the controller
[INFO] [stdout] 142 |     pub is_listen_only: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Capabilities` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `interrupt_ep` is never read
[INFO] [stdout]    --> src/types.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub struct UsbtmcEndpoints {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub interrupt_ep: Option<Endpoint>,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UsbtmcEndpoints` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bcd_version`, `accepts_indicator_pulse_request`, `is_talk_only`, and `is_listen_only` are never read
[INFO] [stdout]    --> src/types.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub struct Capabilities {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 136 |     pub bcd_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 137 |     /// Can accept a control command for pulse
[INFO] [stdout] 138 |     pub accepts_indicator_pulse_request: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 139 |     /// Only sends data to the controller
[INFO] [stdout] 140 |     pub is_talk_only: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 141 |     /// Only accepts data from the controller
[INFO] [stdout] 142 |     pub is_listen_only: bool,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Capabilities` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "6bda83c52499bc820d35bad3ee1343b5d11dcaa04102c7a37745dc9ef4b740e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bda83c52499bc820d35bad3ee1343b5d11dcaa04102c7a37745dc9ef4b740e9", kill_on_drop: false }`
[INFO] [stdout] 6bda83c52499bc820d35bad3ee1343b5d11dcaa04102c7a37745dc9ef4b740e9