[INFO] fetching crate jobflow 0.3.0...
[INFO] checking jobflow-0.3.0 against master#507271bc119683008ec719ecee48814e8ac86c65 for pr-146440
[INFO] extracting crate jobflow 0.3.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate jobflow 0.3.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate jobflow 0.3.0
[INFO] tweaked toml for crates.io crate jobflow 0.3.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate jobflow 0.3.0 on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate jobflow 0.3.0 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" "+507271bc119683008ec719ecee48814e8ac86c65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-log v0.2.17
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[INFO] [stderr]   Downloaded thread-id v4.2.2
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[INFO] [stdout] f360382820343bb375ae8e57620e780b1c1a54db4444beacc1012cd8e0406849
[INFO] running `Command { std: "docker" "start" "-a" "f360382820343bb375ae8e57620e780b1c1a54db4444beacc1012cd8e0406849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f360382820343bb375ae8e57620e780b1c1a54db4444beacc1012cd8e0406849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f360382820343bb375ae8e57620e780b1c1a54db4444beacc1012cd8e0406849", kill_on_drop: false }`
[INFO] [stdout] f360382820343bb375ae8e57620e780b1c1a54db4444beacc1012cd8e0406849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f32e8684381f4ba9c041f6bfbfe8b4a9d6d482d636d04e4ef121c64d85366ca
[INFO] running `Command { std: "docker" "start" "-a" "0f32e8684381f4ba9c041f6bfbfe8b4a9d6d482d636d04e4ef121c64d85366ca", kill_on_drop: false }`
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[INFO] [stderr]     Checking jobflow v0.3.0 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: struct `NoOutput` is never constructed
[INFO] [stdout]    --> src/backend/job.rs:521:12
[INFO] [stdout]     |
[INFO] [stdout] 521 | pub struct NoOutput;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]    --> src/backend/job.rs:948:5
[INFO] [stdout]     |
[INFO] [stdout] 946 | pub(crate) enum OutputKind {
[INFO] [stdout]     |                 ---------- variant in this enum
[INFO] [stdout] 947 |     /// no output
[INFO] [stdout] 948 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OutputKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.6.0
[INFO] [stdout] warning: unused imports: `FlowsInto` and `JobRef`
[INFO] [stdout]  --> benches/benchmarks.rs:3:61
[INFO] [stdout]   |
[INFO] [stdout] 3 | use jobflow::{Flow, FlowBuilder, FlowError, FlowThreadPool, FlowsInto, JobRef};
[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: `r`
[INFO] [stdout]   --> benches/benchmarks.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 let r = flow.run().unwrap();
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `indicatif::style::ProgressTracker`
[INFO] [stdout]  --> examples/java.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use indicatif::style::ProgressTracker;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/java.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let mut m = MultiProgress::new();
[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: unused import: `IntoStatefulAction`
[INFO] [stdout]    --> src/actions/helpers.rs:143:34
[INFO] [stdout]     |
[INFO] [stdout] 143 |     use crate::actions::{Action, IntoStatefulAction, stateful_action};
[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 import: `InputFlavor`
[INFO] [stdout]    --> src/backend/flow_backend.rs:469:31
[INFO] [stdout]     |
[INFO] [stdout] 469 |     use crate::backend::job::{InputFlavor, ReusableOutput, SingleOutput};
[INFO] [stdout]     |                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `InputFlavor`
[INFO] [stdout]    --> src/job_ordering/stepped.rs:216:43
[INFO] [stdout]     |
[INFO] [stdout] 216 |     use crate::backend::job::{BackendJob, InputFlavor, JobError, ReusableOutput, SingleOutput};
[INFO] [stdout]     |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/actions/helpers.rs:150:44
[INFO] [stdout]     |
[INFO] [stdout] 150 |         let sts = stateful_action(32_i32, |t: &mut i32, i: String| {});
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/actions/helpers.rs:150:57
[INFO] [stdout]     |
[INFO] [stdout] 150 |         let sts = stateful_action(32_i32, |t: &mut i32, i: String| {});
[INFO] [stdout]     |                                                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/actions/helpers.rs:148:44
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let sts = stateful_action(32_i32, |t: &mut i32| {});
[INFO] [stdout]     |                                            ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/actions/helpers.rs:157:51
[INFO] [stdout]     |
[INFO] [stdout] 157 |         let some_input = stateful_action(32_i32, |t: &mut i32, s: String| s.into_boxed_str());
[INFO] [stdout]     |                                                   ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/actions/helpers.rs:156:49
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let no_input = stateful_action(32_i32, |t: &mut i32| "hello".to_string());
[INFO] [stdout]     |                                                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/actions.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let v = io_action.apply(123);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/backend/flow_backend.rs:553:13
[INFO] [stdout]     |
[INFO] [stdout] 553 |         let e = Weighted {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]     --> src/backend/job.rs:1180:84
[INFO] [stdout]      |
[INFO] [stdout] 1180 |         let mut task2 = BackendJob::new("task2", SingleOutput::new(), action(move |i: i32| {}));
[INFO] [stdout]      |                                                                                    ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/flow.rs:810:51
[INFO] [stdout]     |
[INFO] [stdout] 810 |         let t2 = flow.create("consume_i32", |Move(i): Move<i32>| {});
[INFO] [stdout]     |                                                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/flow.rs:821:46
[INFO] [stdout]     |
[INFO] [stdout] 821 |         let t3 = flow.create("consume_i32", |i: i32| {});
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/flow.rs:820:46
[INFO] [stdout]     |
[INFO] [stdout] 820 |         let t2 = flow.create("consume_i32", |i: i32| {});
[INFO] [stdout]     |                                              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/flow.rs:832:36
[INFO] [stdout]     |
[INFO] [stdout] 832 |             .create("create_i32", |i: Vec<i32>| 12_i32)
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/flow.rs:864:36
[INFO] [stdout]     |
[INFO] [stdout] 864 |             .create("create_i32", |v: Vec<i32>| vec![1, 2, 3, 4, 5, 6])
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/job.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let t = flow.create("test", test);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tasks`
[INFO] [stdout]    --> src/job_ordering/stepped.rs:253:13
[INFO] [stdout]     |
[INFO] [stdout] 253 |         let tasks = vec![a, b, c, d, e];
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_tasks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tasks`
[INFO] [stdout]    --> src/job_ordering/stepped.rs:297:13
[INFO] [stdout]     |
[INFO] [stdout] 297 |         let tasks = vec![a, b, c];
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_tasks`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoOutput` is never constructed
[INFO] [stdout]    --> src/backend/job.rs:521:12
[INFO] [stdout]     |
[INFO] [stdout] 521 | pub struct NoOutput;
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]    --> src/backend/job.rs:948:5
[INFO] [stdout]     |
[INFO] [stdout] 946 | pub(crate) enum OutputKind {
[INFO] [stdout]     |                 ---------- variant in this enum
[INFO] [stdout] 947 |     /// no output
[INFO] [stdout] 948 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OutputKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/flow.rs:812:9
[INFO] [stdout]     |
[INFO] [stdout] 812 |         t1.flows_into(t2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 812 |         let _ = t1.flows_into(t2);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "0f32e8684381f4ba9c041f6bfbfe8b4a9d6d482d636d04e4ef121c64d85366ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f32e8684381f4ba9c041f6bfbfe8b4a9d6d482d636d04e4ef121c64d85366ca", kill_on_drop: false }`
[INFO] [stdout] 0f32e8684381f4ba9c041f6bfbfe8b4a9d6d482d636d04e4ef121c64d85366ca
