[INFO] fetching crate dfu-flasher 0.4.2... [INFO] checking dfu-flasher-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate dfu-flasher 0.4.2 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate dfu-flasher 0.4.2 [INFO] finished tweaking crates.io crate dfu-flasher 0.4.2 [INFO] tweaked toml for crates.io crate dfu-flasher 0.4.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate dfu-flasher 0.4.2 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 dfu-flasher 0.4.2 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 43dc0c440303e0ec7d9a7d4751a776eee4c3566ac31e7a904b41ce020f2e1b90 [INFO] running `Command { std: "docker" "start" "-a" "43dc0c440303e0ec7d9a7d4751a776eee4c3566ac31e7a904b41ce020f2e1b90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "43dc0c440303e0ec7d9a7d4751a776eee4c3566ac31e7a904b41ce020f2e1b90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43dc0c440303e0ec7d9a7d4751a776eee4c3566ac31e7a904b41ce020f2e1b90", kill_on_drop: false }` [INFO] [stdout] 43dc0c440303e0ec7d9a7d4751a776eee4c3566ac31e7a904b41ce020f2e1b90 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ebeaf84aa8e41020e6b9a777b15f5047633119ba5539f015f972bd0aa8417118 [INFO] running `Command { std: "docker" "start" "-a" "ebeaf84aa8e41020e6b9a777b15f5047633119ba5539f015f972bd0aa8417118", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking sysfs-serde v0.2.3 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking nix v0.20.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking usbapi v0.4.2 [INFO] [stderr] Checking dfu v0.4.2 [INFO] [stderr] Checking dfu-flasher v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:122:5 [INFO] [stdout] | [INFO] [stdout] 122 | / /// Read firmware into [INFO] [stdout] 123 | | #[structopt(short = "f", long)] [INFO] [stdout] 124 | | file_name: PathBuf, [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 [INFO] [stdout] --> src/main.rs:132:5 [INFO] [stdout] | [INFO] [stdout] 132 | / /// Read firmware into [INFO] [stdout] 133 | | #[structopt(short = "f", long)] [INFO] [stdout] 134 | | file_name: PathBuf, [INFO] [stdout] | |______________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:193:5 [INFO] [stdout] | [INFO] [stdout] 193 | / /// vendor_id:product_id example 0470:df00 [INFO] [stdout] 194 | | #[structopt(short, long)] [INFO] [stdout] 195 | | dev: Option, [INFO] [stdout] | |_______________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:200:5 [INFO] [stdout] | [INFO] [stdout] 200 | / #[structopt(short, long)] [INFO] [stdout] 201 | | bus_device: Option, [INFO] [stdout] | |______________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `dfu-flasher` (bin "dfu-flasher") due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:122:5 [INFO] [stdout] | [INFO] [stdout] 122 | / /// Read firmware into [INFO] [stdout] 123 | | #[structopt(short = "f", long)] [INFO] [stdout] 124 | | file_name: PathBuf, [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 [INFO] [stdout] --> src/main.rs:132:5 [INFO] [stdout] | [INFO] [stdout] 132 | / /// Read firmware into [INFO] [stdout] 133 | | #[structopt(short = "f", long)] [INFO] [stdout] 134 | | file_name: PathBuf, [INFO] [stdout] | |______________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:193:5 [INFO] [stdout] | [INFO] [stdout] 193 | / /// vendor_id:product_id example 0470:df00 [INFO] [stdout] 194 | | #[structopt(short, long)] [INFO] [stdout] 195 | | dev: Option, [INFO] [stdout] | |_______________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:200:5 [INFO] [stdout] | [INFO] [stdout] 200 | / #[structopt(short, long)] [INFO] [stdout] 201 | | bus_device: Option, [INFO] [stdout] | |______________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `dfu-flasher` (bin "dfu-flasher" test) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "ebeaf84aa8e41020e6b9a777b15f5047633119ba5539f015f972bd0aa8417118", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebeaf84aa8e41020e6b9a777b15f5047633119ba5539f015f972bd0aa8417118", kill_on_drop: false }` [INFO] [stdout] ebeaf84aa8e41020e6b9a777b15f5047633119ba5539f015f972bd0aa8417118