[INFO] fetching crate stepwise 0.0.3...
[INFO] checking stepwise-0.0.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate stepwise 0.0.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate stepwise 0.0.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate stepwise 0.0.3
[INFO] tweaked toml for crates.io crate stepwise 0.0.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stepwise 0.0.3 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 stepwise 0.0.3 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 90c4dd3d445b04ff0ccbcb6925f386ae063bb0441ece9a97f41c14a1d8fb4542
[INFO] running `Command { std: "docker" "start" "-a" "90c4dd3d445b04ff0ccbcb6925f386ae063bb0441ece9a97f41c14a1d8fb4542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90c4dd3d445b04ff0ccbcb6925f386ae063bb0441ece9a97f41c14a1d8fb4542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90c4dd3d445b04ff0ccbcb6925f386ae063bb0441ece9a97f41c14a1d8fb4542", kill_on_drop: false }`
[INFO] [stdout] 90c4dd3d445b04ff0ccbcb6925f386ae063bb0441ece9a97f41c14a1d8fb4542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f74ae0baeb671f5359a053049b7caff17987dda24e161d3c0001ead9ab95e978
[INFO] running `Command { std: "docker" "start" "-a" "f74ae0baeb671f5359a053049b7caff17987dda24e161d3c0001ead9ab95e978", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling iai-callgrind-runner v0.14.0
[INFO] [stderr]     Checking clap_builder v4.5.38
[INFO] [stderr]     Checking anstream v0.6.18
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking jiff v0.2.13
[INFO] [stderr]    Compiling iai-callgrind v0.14.0
[INFO] [stderr]     Checking stepwise v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stdout] warning: enum `Progress` is never used
[INFO] [stdout]   --> src/drive/step.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) enum Progress {
[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<f64, Infallible>
[INFO] [stdout]   --> src/algos/bisection.rs:70:64
[INFO] [stdout]    |
[INFO] [stdout] 70 |         Bisection::from_falliable_fn::<_, Infallible>(move |x| Ok(g(x)), range)
[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 `stepwise` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f74ae0baeb671f5359a053049b7caff17987dda24e161d3c0001ead9ab95e978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f74ae0baeb671f5359a053049b7caff17987dda24e161d3c0001ead9ab95e978", kill_on_drop: false }`
[INFO] [stdout] f74ae0baeb671f5359a053049b7caff17987dda24e161d3c0001ead9ab95e978
