[INFO] fetching crate blink-timer 0.3.2...
[INFO] checking blink-timer-0.3.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate blink-timer 0.3.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate blink-timer 0.3.2
[INFO] finished tweaking crates.io crate blink-timer 0.3.2
[INFO] tweaked toml for crates.io crate blink-timer 0.3.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate blink-timer 0.3.2 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 blink-timer 0.3.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c835751728f0f255ff8c40d863dc1b6b772c85b4cb640cf20e157a1108108706
[INFO] running `Command { std: "docker" "start" "-a" "c835751728f0f255ff8c40d863dc1b6b772c85b4cb640cf20e157a1108108706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c835751728f0f255ff8c40d863dc1b6b772c85b4cb640cf20e157a1108108706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c835751728f0f255ff8c40d863dc1b6b772c85b4cb640cf20e157a1108108706", kill_on_drop: false }`
[INFO] [stdout] c835751728f0f255ff8c40d863dc1b6b772c85b4cb640cf20e157a1108108706
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 072bde713108436c1a396bc3366cbed5a7ef58e58c4c6c6f2c40910f05e1b1c3
[INFO] running `Command { std: "docker" "start" "-a" "072bde713108436c1a396bc3366cbed5a7ef58e58c4c6c6f2c40910f05e1b1c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.129
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling serde v1.0.143
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.143
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]    Compiling cpal v0.13.5
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking ogg v0.8.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking async-channel v1.7.1
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling x11 v2.20.0
[INFO] [stderr]     Checking ordered-stream v0.0.1
[INFO] [stderr]     Checking os_str_bytes v6.2.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking lewton v0.10.2
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking async-io v1.7.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking async-broadcast v0.4.1
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rdev v0.5.1
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]     Checking alsa v0.6.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling enumflags2_derive v0.7.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling serde_repr v0.1.9
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling clap_derive v3.2.15
[INFO] [stderr]    Compiling thiserror v1.0.32
[INFO] [stderr]    Compiling proc-macro-crate v1.2.1
[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking rodio v0.15.0
[INFO] [stderr]    Compiling zvariant_derive v3.6.0
[INFO] [stderr]    Compiling zbus_macros v2.3.2
[INFO] [stderr]     Checking clap v3.2.16
[INFO] [stderr]     Checking enumflags2 v0.7.5
[INFO] [stderr]     Checking zvariant v3.6.0
[INFO] [stderr]     Checking zbus_names v2.2.0
[INFO] [stderr]     Checking zbus v2.3.2
[INFO] [stderr]     Checking notify-rust v4.5.8
[INFO] [stderr]     Checking blink-timer v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:364:13
[INFO] [stdout]     |
[INFO] [stdout] 364 |         for mut item in self.state.iter_mut() {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:390:21
[INFO] [stdout]     |
[INFO] [stdout] 390 |         if let Some(mut next) = self.state.first_mut() {
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:174:16
[INFO] [stdout]     |
[INFO] [stdout] 174 |     FileSystem(String),
[INFO] [stdout]     |     ---------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 174 -     FileSystem(String),
[INFO] [stdout] 174 +     FileSystem(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:175:16
[INFO] [stdout]     |
[INFO] [stdout] 175 |     Configfile(String),
[INFO] [stdout]     |     ---------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 175 -     Configfile(String),
[INFO] [stdout] 175 +     Configfile(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:176:11
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Fatal(String),
[INFO] [stdout]     |     ----- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 176 -     Fatal(String),
[INFO] [stdout] 176 +     Fatal(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 |     config_path: Option<PathBuf>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blink-timer` (bin "blink-timer" test) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:364:13
[INFO] [stdout]     |
[INFO] [stdout] 364 |         for mut item in self.state.iter_mut() {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:390:21
[INFO] [stdout]     |
[INFO] [stdout] 390 |         if let Some(mut next) = self.state.first_mut() {
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:174:16
[INFO] [stdout]     |
[INFO] [stdout] 174 |     FileSystem(String),
[INFO] [stdout]     |     ---------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 174 -     FileSystem(String),
[INFO] [stdout] 174 +     FileSystem(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:175:16
[INFO] [stdout]     |
[INFO] [stdout] 175 |     Configfile(String),
[INFO] [stdout]     |     ---------- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 175 -     Configfile(String),
[INFO] [stdout] 175 +     Configfile(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:176:11
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Fatal(String),
[INFO] [stdout]     |     ----- ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 176 -     Fatal(String),
[INFO] [stdout] 176 +     Fatal(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 |     config_path: Option<PathBuf>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blink-timer` (bin "blink-timer") due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "072bde713108436c1a396bc3366cbed5a7ef58e58c4c6c6f2c40910f05e1b1c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "072bde713108436c1a396bc3366cbed5a7ef58e58c4c6c6f2c40910f05e1b1c3", kill_on_drop: false }`
[INFO] [stdout] 072bde713108436c1a396bc3366cbed5a7ef58e58c4c6c6f2c40910f05e1b1c3
