[INFO] cloning repository https://github.com/kildevaeld/stuff-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kildevaeld/stuff-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkildevaeld%2Fstuff-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkildevaeld%2Fstuff-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74c6930e962827e79464fc724f8c197a7cd40059
[INFO] checking kildevaeld/stuff-rs against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkildevaeld%2Fstuff-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kildevaeld/stuff-rs
[INFO] finished tweaking git repo https://github.com/kildevaeld/stuff-rs
[INFO] tweaked toml for git repo https://github.com/kildevaeld/stuff-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kildevaeld/stuff-rs 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 git repo https://github.com/kildevaeld/stuff-rs 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] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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] 70944f7a53273cf86c6331ecac6e1ef3c5ce5d988ad4f8f842409fac5d1f30b8
[INFO] running `Command { std: "docker" "start" "-a" "70944f7a53273cf86c6331ecac6e1ef3c5ce5d988ad4f8f842409fac5d1f30b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70944f7a53273cf86c6331ecac6e1ef3c5ce5d988ad4f8f842409fac5d1f30b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70944f7a53273cf86c6331ecac6e1ef3c5ce5d988ad4f8f842409fac5d1f30b8", kill_on_drop: false }`
[INFO] [stdout] 70944f7a53273cf86c6331ecac6e1ef3c5ce5d988ad4f8f842409fac5d1f30b8
[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] a7e4a11c841d6739b0e5b33da5e4337376e3b1a4e8253f0957495547f0c25249
[INFO] running `Command { std: "docker" "start" "-a" "a7e4a11c841d6739b0e5b33da5e4337376e3b1a4e8253f0957495547f0c25249", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling async-trait v0.1.57
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling tokio v1.21.1
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]     Checking generic-array v0.14.6
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking smallvec v1.9.0
[INFO] [stderr]     Checking dale v0.1.0 (https://github.com/kildevaeld/dale-rs#f193ae2c)
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking concurrent-queue v1.2.4
[INFO] [stderr]     Checking futures-micro v0.5.0
[INFO] [stderr]     Checking relative-path v1.7.2
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking async-oneshot v0.5.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling openssl-sys v0.9.77
[INFO] [stderr]     Checking async-channel v1.7.1
[INFO] [stderr]     Checking value v0.1.0 (https://github.com/kildevaeld/value-rs#fa7421b5)
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking digest v0.10.5
[INFO] [stderr]     Checking listr v0.1.0 (/opt/rustwide/workdir/listr)
[INFO] [stdout] warning: unused import: `std::iter::Skip`
[INFO] [stdout]  --> listr/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::Skip;
[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 variable: `ret`
[INFO] [stdout]   --> listr/src/lib.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let ret = match task.task.call(self.ctx.clone()).await {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `listr` (lib) due to 7 previous errors; 4 warnings emitted
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> listr/src/lib.rs:67:30
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Outcome::Failure(err) => {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `title` is never read
[INFO] [stdout]   --> listr/src/lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct WorkDesc<C> {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 40 |     title: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:53:75
[INFO] [stdout]    |
[INFO] [stdout] 53 |       async fn run_task(&self, task: &WorkDesc<C>) -> Result<Finale, Error> {
[INFO] [stdout]    |  ___________________________________________________________________________^
[INFO] [stdout] 54 | |         if let Some(enabler) = &task.enabler {
[INFO] [stdout] 55 | |             if !enabler.enabled(&self.ctx) {
[INFO] [stdout] 56 | |                 return Ok(Finale::Skip);
[INFO] [stdout] ...  |
[INFO] [stdout] 76 | |         todo!()
[INFO] [stdout] 77 | |     }
[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<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:53:75
[INFO] [stdout]    |
[INFO] [stdout] 53 |       async fn run_task(&self, task: &WorkDesc<C>) -> Result<Finale, Error> {
[INFO] [stdout]    |  ___________________________________________________________________________^
[INFO] [stdout] 54 | |         if let Some(enabler) = &task.enabler {
[INFO] [stdout] 55 | |             if !enabler.enabled(&self.ctx) {
[INFO] [stdout] 56 | |                 return Ok(Finale::Skip);
[INFO] [stdout] ...  |
[INFO] [stdout] 76 | |         todo!()
[INFO] [stdout] 77 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:56:24
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 return Ok(Finale::Skip);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:62:24
[INFO] [stdout]    |
[INFO] [stdout] 62 |                 return Ok(Finale::Skip);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |             self.run_task(work).await;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:82:33
[INFO] [stdout]    |
[INFO] [stdout] 82 |             self.run_task(work).await;
[INFO] [stdout]    |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |             self.run_task(work).await;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Skip`
[INFO] [stdout]  --> listr/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::iter::Skip;
[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 variable: `ret`
[INFO] [stdout]   --> listr/src/lib.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let ret = match task.task.call(self.ctx.clone()).await {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> listr/src/lib.rs:67:30
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Outcome::Failure(err) => {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `title` is never read
[INFO] [stdout]   --> listr/src/lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct WorkDesc<C> {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 40 |     title: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:53:75
[INFO] [stdout]    |
[INFO] [stdout] 53 |       async fn run_task(&self, task: &WorkDesc<C>) -> Result<Finale, Error> {
[INFO] [stdout]    |  ___________________________________________________________________________^
[INFO] [stdout] 54 | |         if let Some(enabler) = &task.enabler {
[INFO] [stdout] 55 | |             if !enabler.enabled(&self.ctx) {
[INFO] [stdout] 56 | |                 return Ok(Finale::Skip);
[INFO] [stdout] ...  |
[INFO] [stdout] 76 | |         todo!()
[INFO] [stdout] 77 | |     }
[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<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:53:75
[INFO] [stdout]    |
[INFO] [stdout] 53 |       async fn run_task(&self, task: &WorkDesc<C>) -> Result<Finale, Error> {
[INFO] [stdout]    |  ___________________________________________________________________________^
[INFO] [stdout] 54 | |         if let Some(enabler) = &task.enabler {
[INFO] [stdout] 55 | |             if !enabler.enabled(&self.ctx) {
[INFO] [stdout] 56 | |                 return Ok(Finale::Skip);
[INFO] [stdout] ...  |
[INFO] [stdout] 76 | |         todo!()
[INFO] [stdout] 77 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:56:24
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 return Ok(Finale::Skip);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:62:24
[INFO] [stdout]    |
[INFO] [stdout] 62 |                 return Ok(Finale::Skip);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |             self.run_task(work).await;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:82:33
[INFO] [stdout]    |
[INFO] [stdout] 82 |             self.run_task(work).await;
[INFO] [stdout]    |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Finale, Error>
[INFO] [stdout]   --> listr/src/lib.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |             self.run_task(work).await;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `listr` (lib test) due to 7 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a7e4a11c841d6739b0e5b33da5e4337376e3b1a4e8253f0957495547f0c25249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e4a11c841d6739b0e5b33da5e4337376e3b1a4e8253f0957495547f0c25249", kill_on_drop: false }`
[INFO] [stdout] a7e4a11c841d6739b0e5b33da5e4337376e3b1a4e8253f0957495547f0c25249
