[INFO] fetching crate oled_shmoled 0.2.1...
[INFO] checking oled_shmoled-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate oled_shmoled 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate oled_shmoled 0.2.1
[INFO] finished tweaking crates.io crate oled_shmoled 0.2.1
[INFO] tweaked toml for crates.io crate oled_shmoled 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate oled_shmoled 0.2.1 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 oled_shmoled 0.2.1 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 01ad0e9dce9c60edc038ce481e1a6f000269c813a1f8171dd65d23649e2e384b
[INFO] running `Command { std: "docker" "start" "-a" "01ad0e9dce9c60edc038ce481e1a6f000269c813a1f8171dd65d23649e2e384b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01ad0e9dce9c60edc038ce481e1a6f000269c813a1f8171dd65d23649e2e384b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ad0e9dce9c60edc038ce481e1a6f000269c813a1f8171dd65d23649e2e384b", kill_on_drop: false }`
[INFO] [stdout] 01ad0e9dce9c60edc038ce481e1a6f000269c813a1f8171dd65d23649e2e384b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3181150e155106a92e506b09283c8ba6b17f379d70692f36610e9c585e663f9b
[INFO] running `Command { std: "docker" "start" "-a" "3181150e155106a92e506b09283c8ba6b17f379d70692f36610e9c585e663f9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling anyhow v1.0.45
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]    Compiling const-str-proc-macro v0.3.1
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking const-str v0.3.1
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking oled_shmoled v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     /// The xrandr identifier for the display
[INFO] [stdout] 19 | |     #[clap()]
[INFO] [stdout] 20 | |     monitor_ident: String,
[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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// The base path for the backlight files
[INFO] [stdout] 23 | |     #[clap(long, default_value = "/sys/class/backlight/intel_backlight")]
[INFO] [stdout] 24 | |     base_path: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     /// The name of the file containing the current backlight state
[INFO] [stdout] 27 | |     #[clap(long, default_value = "brightness")]
[INFO] [stdout] 28 | |     current_brightness_file: String,
[INFO] [stdout]    | |___________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// The name of the file identifying the maximum brightness of the system
[INFO] [stdout] 31 | |     #[clap(long, default_value = "max_brightness")]
[INFO] [stdout] 32 | |     max_brightness_file: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `oled_shmoled` (bin "oled_shmoled") 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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     /// The xrandr identifier for the display
[INFO] [stdout] 19 | |     #[clap()]
[INFO] [stdout] 20 | |     monitor_ident: String,
[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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     /// The base path for the backlight files
[INFO] [stdout] 23 | |     #[clap(long, default_value = "/sys/class/backlight/intel_backlight")]
[INFO] [stdout] 24 | |     base_path: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     /// The name of the file containing the current backlight state
[INFO] [stdout] 27 | |     #[clap(long, default_value = "brightness")]
[INFO] [stdout] 28 | |     current_brightness_file: String,
[INFO] [stdout]    | |___________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// The name of the file identifying the maximum brightness of the system
[INFO] [stdout] 31 | |     #[clap(long, default_value = "max_brightness")]
[INFO] [stdout] 32 | |     max_brightness_file: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `oled_shmoled` (bin "oled_shmoled" test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "3181150e155106a92e506b09283c8ba6b17f379d70692f36610e9c585e663f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3181150e155106a92e506b09283c8ba6b17f379d70692f36610e9c585e663f9b", kill_on_drop: false }`
[INFO] [stdout] 3181150e155106a92e506b09283c8ba6b17f379d70692f36610e9c585e663f9b
