[INFO] cloning repository https://github.com/mattiast/pyo3_module
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattiast/pyo3_module" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattiast%2Fpyo3_module", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattiast%2Fpyo3_module'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2dc91df9fb699304bf595d2ccfe66af724733224
[INFO] checking mattiast/pyo3_module 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%2Fmattiast%2Fpyo3_module" "/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/mattiast/pyo3_module
[INFO] finished tweaking git repo https://github.com/mattiast/pyo3_module
[INFO] tweaked toml for git repo https://github.com/mattiast/pyo3_module written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mattiast/pyo3_module 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/mattiast/pyo3_module 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-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] 8930856ea7705c247fd59640e1ccf518963cc36b31f8315f2d371b7e61b76d49
[INFO] running `Command { std: "docker" "start" "-a" "8930856ea7705c247fd59640e1ccf518963cc36b31f8315f2d371b7e61b76d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8930856ea7705c247fd59640e1ccf518963cc36b31f8315f2d371b7e61b76d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8930856ea7705c247fd59640e1ccf518963cc36b31f8315f2d371b7e61b76d49", kill_on_drop: false }`
[INFO] [stdout] 8930856ea7705c247fd59640e1ccf518963cc36b31f8315f2d371b7e61b76d49
[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] 3c87367e2c02adb8b023ba27f3f09098f31616921877dd33c66d7113d3b942dd
[INFO] running `Command { std: "docker" "start" "-a" "3c87367e2c02adb8b023ba27f3f09098f31616921877dd33c66d7113d3b942dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.3
[INFO] [stderr]    Compiling unicode-ident v1.0.20
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]     Checking rustc-hash v2.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]     Checking rand_seeder v0.4.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking rand_pcg v0.9.0
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]    Compiling pyo3-build-config v0.27.1
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking ndarray v0.16.1
[INFO] [stderr]    Compiling pyo3-ffi v0.27.1
[INFO] [stderr]    Compiling pyo3-macros-backend v0.27.1
[INFO] [stderr]    Compiling pyo3 v0.27.1
[INFO] [stderr]    Compiling numpy v0.27.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]    Compiling pyo3-macros v0.27.1
[INFO] [stderr]     Checking sample_module v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<f64, Infallible>
[INFO] [stdout]   --> src/lib.rs:59:45
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn ev_presses(x: f64, n_sims: usize) -> f64 {
[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<i32, Infallible>
[INFO] [stdout]   --> src/lib.rs:90:22
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn xsq(&self) -> i32 {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/lib.rs:107:20
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn add6(x: u32) -> u32 {
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sample_module` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `sample_module` (lib test) due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<f64, Infallible>
[INFO] [stdout]   --> src/lib.rs:59:45
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn ev_presses(x: f64, n_sims: usize) -> f64 {
[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<i32, Infallible>
[INFO] [stdout]   --> src/lib.rs:90:22
[INFO] [stdout]    |
[INFO] [stdout] 90 |     fn xsq(&self) -> i32 {
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u32, Infallible>
[INFO] [stdout]    --> src/lib.rs:107:20
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn add6(x: u32) -> u32 {
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3c87367e2c02adb8b023ba27f3f09098f31616921877dd33c66d7113d3b942dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c87367e2c02adb8b023ba27f3f09098f31616921877dd33c66d7113d3b942dd", kill_on_drop: false }`
[INFO] [stdout] 3c87367e2c02adb8b023ba27f3f09098f31616921877dd33c66d7113d3b942dd