[INFO] cloning repository https://github.com/zeng-y-l/flat_bit_set
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zeng-y-l/flat_bit_set" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeng-y-l%2Fflat_bit_set", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeng-y-l%2Fflat_bit_set'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 718a241ee7317858b387e699148e2ed775cd464b
[INFO] checking zeng-y-l/flat_bit_set 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%2Fzeng-y-l%2Fflat_bit_set" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zeng-y-l/flat_bit_set
[INFO] finished tweaking git repo https://github.com/zeng-y-l/flat_bit_set
[INFO] tweaked toml for git repo https://github.com/zeng-y-l/flat_bit_set written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zeng-y-l/flat_bit_set 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/zeng-y-l/flat_bit_set 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b78e27cd01010eb22117cf67f5055e5e9f2971e7c91b3ff74c97b8de79cac67f
[INFO] running `Command { std: "docker" "start" "-a" "b78e27cd01010eb22117cf67f5055e5e9f2971e7c91b3ff74c97b8de79cac67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b78e27cd01010eb22117cf67f5055e5e9f2971e7c91b3ff74c97b8de79cac67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b78e27cd01010eb22117cf67f5055e5e9f2971e7c91b3ff74c97b8de79cac67f", kill_on_drop: false }`
[INFO] [stdout] b78e27cd01010eb22117cf67f5055e5e9f2971e7c91b3ff74c97b8de79cac67f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] c5ec43475b28b0f809a41bd80d39a042b402c2ea7f3b34ed8434fe976c993f1a
[INFO] running `Command { std: "docker" "start" "-a" "c5ec43475b28b0f809a41bd80d39a042b402c2ea7f3b34ed8434fe976c993f1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling libc v0.2.162
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling rustix v0.38.40
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking fastrand v2.2.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]     Checking bytemuck v1.19.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]     Checking clap_lex v0.7.3
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking bitmaps v3.2.1
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking oorandom v11.1.4
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking safe_arch v0.7.2
[INFO] [stderr]     Checking roaring v0.10.6
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking litemap v0.7.3
[INFO] [stderr]     Checking clap_builder v4.5.21
[INFO] [stderr]     Checking flat_bit_set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/inner/mod.rs:541:25
[INFO] [stdout]     |
[INFO] [stdout] 541 |           let cap = match self.try_zip_fold_chunks::<_, Infallible>(
[INFO] [stdout]     |  _________________________^
[INFO] [stdout] 542 | |             other,
[INFO] [stdout] 543 | |             mid,
[INFO] [stdout] 544 | |             |n, _, _| Ok(n),
[INFO] [stdout] 545 | |             |n, _, c2| Ok(n + usize::from(O::second(c2) != C::ZERO)),
[INFO] [stdout] 546 | |             |n, _, _, _| Ok(n),
[INFO] [stdout] 547 | |         ) {
[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<usize, Infallible>
[INFO] [stdout]    --> src/inner/mod.rs:544:23
[INFO] [stdout]     |
[INFO] [stdout] 544 |             |n, _, _| Ok(n),
[INFO] [stdout]     |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/inner/mod.rs:545:24
[INFO] [stdout]     |
[INFO] [stdout] 545 |             |n, _, c2| Ok(n + usize::from(O::second(c2) != C::ZERO)),
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/inner/mod.rs:546:26
[INFO] [stdout]     |
[INFO] [stdout] 546 |             |n, _, _, _| Ok(n),
[INFO] [stdout]     |                          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/inner/mod.rs:577:15
[INFO] [stdout]     |
[INFO] [stdout] 577 |     fn chunks(&self) -> IterChunk<K, C> {
[INFO] [stdout]     |               ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |               |
[INFO] [stdout]     |               the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 577 |     fn chunks(&self) -> IterChunk<'_, K, C> {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/inner/mod.rs:590:17
[INFO] [stdout]     |
[INFO] [stdout] 590 |     pub fn iter(&self) -> Iter<K, C> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 590 |     pub fn iter(&self) -> Iter<'_, K, C> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/inner/mod.rs:597:18
[INFO] [stdout]     |
[INFO] [stdout] 597 |     pub fn thunk(&self) -> Thunk<IterChunk<K, C>> {
[INFO] [stdout]     |                  ^^^^^           ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 597 |     pub fn thunk(&self) -> Thunk<IterChunk<'_, K, C>> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flat_bit_set` (lib) due to 4 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c5ec43475b28b0f809a41bd80d39a042b402c2ea7f3b34ed8434fe976c993f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5ec43475b28b0f809a41bd80d39a042b402c2ea7f3b34ed8434fe976c993f1a", kill_on_drop: false }`
[INFO] [stdout] c5ec43475b28b0f809a41bd80d39a042b402c2ea7f3b34ed8434fe976c993f1a
