[INFO] cloning repository https://github.com/ChenWoChong/hello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChenWoChong/hello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChenWoChong%2Fhello", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChenWoChong%2Fhello'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19bac3395ecb577abd82762a19e663dbdf2c2d39
[INFO] checking ChenWoChong/hello 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%2FChenWoChong%2Fhello" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ChenWoChong/hello
[INFO] finished tweaking git repo https://github.com/ChenWoChong/hello
[INFO] tweaked toml for git repo https://github.com/ChenWoChong/hello written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ChenWoChong/hello 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/ChenWoChong/hello 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a67f35fdb91941fa28d4452c94d055c53e69fc883d9bd86f99d876ca6b94ea0a
[INFO] running `Command { std: "docker" "start" "-a" "a67f35fdb91941fa28d4452c94d055c53e69fc883d9bd86f99d876ca6b94ea0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a67f35fdb91941fa28d4452c94d055c53e69fc883d9bd86f99d876ca6b94ea0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a67f35fdb91941fa28d4452c94d055c53e69fc883d9bd86f99d876ca6b94ea0a", kill_on_drop: false }`
[INFO] [stdout] a67f35fdb91941fa28d4452c94d055c53e69fc883d9bd86f99d876ca6b94ea0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6e64d07a059671c380c37888fae28be7b249cc903720745db4c4ff87db1f6017
[INFO] running `Command { std: "docker" "start" "-a" "6e64d07a059671c380c37888fae28be7b249cc903720745db4c4ff87db1f6017", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling once_cell v1.20.3
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]     Checking log v0.4.25
[INFO] [stderr]    Compiling zerocopy v0.8.20
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking http v1.2.0
[INFO] [stderr]     Checking tinyvec v1.8.1
[INFO] [stderr]    Compiling httparse v1.10.0
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling rustversion v1.0.19
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking phf_shared v0.11.3
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.139
[INFO] [stderr]     Checking ryu v1.0.19
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]     Checking whoami v1.5.2
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking bitflags v2.8.0
[INFO] [stderr]     Checking matchit v0.8.4
[INFO] [stderr]     Checking http-range-header v0.4.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking unicode-normalization v0.1.24
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking humansize v2.1.3
[INFO] [stderr]    Compiling pyo3-build-config v0.24.0
[INFO] [stderr]     Checking stringprep v0.1.5
[INFO] [stderr]     Checking rand_core v0.9.2
[INFO] [stderr]    Compiling askama_parser v0.2.1
[INFO] [stderr]    Compiling pyo3-ffi v0.24.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.24.0
[INFO] [stderr]    Compiling pyo3 v0.24.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling async-trait v0.1.86
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]     Checking tokio v1.43.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.0
[INFO] [stderr]     Checking postgres-protocol v0.6.8
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]     Checking axum-core v0.5.0
[INFO] [stderr]     Checking postgres-types v0.2.9
[INFO] [stderr]     Checking serde v1.0.218
[INFO] [stderr]    Compiling pyo3-macros v0.24.0
[INFO] [stderr]     Checking tokio-util v0.7.13
[INFO] [stderr]     Checking hyper v1.6.0
[INFO] [stderr]     Checking tower v0.5.2
[INFO] [stderr]     Checking bb8 v0.9.0
[INFO] [stderr]     Checking serde_path_to_error v0.1.16
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking uuid v1.14.0
[INFO] [stderr]     Checking tokio-postgres v0.7.13
[INFO] [stderr]     Checking tower-http v0.6.2
[INFO] [stderr]     Checking hyper-util v0.1.10
[INFO] [stderr]    Compiling basic-toml v0.1.9
[INFO] [stderr]     Checking axum v0.8.1
[INFO] [stderr]    Compiling askama_derive v0.12.5
[INFO] [stderr]     Checking bb8-postgres v0.9.0
[INFO] [stderr]     Checking askama v0.12.1
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:29:44
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn search(contents: &str, needed: &str) -> usize {
[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/lib.rs:37:55
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn search_sequential(contents: &str, needed: &str) -> usize {
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:42:85
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn search_sequential_allow_threads(py: Python<'_>, contents: &str, needed: &str) -> usize {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello` (lib test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:29:44
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn search(contents: &str, needed: &str) -> usize {
[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/lib.rs:37:55
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn search_sequential(contents: &str, needed: &str) -> usize {
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/lib.rs:42:85
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn search_sequential_allow_threads(py: Python<'_>, contents: &str, needed: &str) -> usize {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "6e64d07a059671c380c37888fae28be7b249cc903720745db4c4ff87db1f6017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e64d07a059671c380c37888fae28be7b249cc903720745db4c4ff87db1f6017", kill_on_drop: false }`
[INFO] [stdout] 6e64d07a059671c380c37888fae28be7b249cc903720745db4c4ff87db1f6017
