[INFO] cloning repository https://github.com/alesalloum/faster_cp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alesalloum/faster_cp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falesalloum%2Ffaster_cp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falesalloum%2Ffaster_cp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7e98af0018b9efd25a947d95c2bf27ac614d379
[INFO] checking alesalloum/faster_cp 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%2Falesalloum%2Ffaster_cp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/alesalloum/faster_cp
[INFO] finished tweaking git repo https://github.com/alesalloum/faster_cp
[INFO] tweaked toml for git repo https://github.com/alesalloum/faster_cp written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alesalloum/faster_cp 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/alesalloum/faster_cp 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7ed844b6e5490254a46654da542c89c73bb33c8208e071acd7b73f498295785d
[INFO] running `Command { std: "docker" "start" "-a" "7ed844b6e5490254a46654da542c89c73bb33c8208e071acd7b73f498295785d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ed844b6e5490254a46654da542c89c73bb33c8208e071acd7b73f498295785d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ed844b6e5490254a46654da542c89c73bb33c8208e071acd7b73f498295785d", kill_on_drop: false }`
[INFO] [stdout] 7ed844b6e5490254a46654da542c89c73bb33c8208e071acd7b73f498295785d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c68243fb1056b94869545389e09c971902e3f2d7b5c6848614c9b95f23d30430
[INFO] running `Command { std: "docker" "start" "-a" "c68243fb1056b94869545389e09c971902e3f2d7b5c6848614c9b95f23d30430", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling zerocopy v0.8.16
[INFO] [stderr]     Checking fixedbitset v0.5.7
[INFO] [stderr]     Checking unindent v0.2.3
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking lambert_w v1.0.14
[INFO] [stderr]     Checking special v0.11.3
[INFO] [stderr]     Checking petgraph v0.7.1
[INFO] [stderr]    Compiling pyo3-build-config v0.23.4
[INFO] [stderr]     Checking rand_core v0.9.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.23.4
[INFO] [stderr]    Compiling pyo3-ffi v0.23.4
[INFO] [stderr]    Compiling pyo3 v0.23.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[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]    Compiling pyo3-macros v0.23.4
[INFO] [stderr]     Checking faster_cp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/algorithms.rs:327:46
[INFO] [stdout]     |
[INFO] [stdout] 327 |     let (ln_gamma_val, _) = (n as f64 - 1.0).ln_gamma(); // Extract first value
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `ln_gamma(...)` to keep using the current method
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(float_gamma)]` to the crate attributes to enable `std::f64::<impl f64>::ln_gamma`
[INFO] [stdout]    --> src/lib.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout]   1 + #![feature(float_gamma)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/algorithms.rs:327:46
[INFO] [stdout]     |
[INFO] [stdout] 327 |     let (ln_gamma_val, _) = (n as f64 - 1.0).ln_gamma(); // Extract first value
[INFO] [stdout]     |                                              ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `ln_gamma(...)` to keep using the current method
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(float_gamma)]` to the crate attributes to enable `std::f64::<impl f64>::ln_gamma`
[INFO] [stdout]    --> src/lib.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout]   1 + #![feature(float_gamma)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `faster_cp` (lib test) due to 3 previous errors; 9 warnings emitted
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/lib.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn add(a: f64, b: f64) -> PyResult<f64> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `multiply` is never used
[INFO] [stdout]   --> src/lib.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn multiply(a: f64, b: f64) -> PyResult<f64> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let mut T = initial_temp;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M00` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |     let M00 = if n0 > 1 { n0 * (n0 - 1) / 2 } else { 0 };
[INFO] [stdout]     |         ^^^ help: convert the identifier to snake case: `m00`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M11` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let M11 = if n1 > 1 { n1 * (n1 - 1) / 2 } else { 0 };
[INFO] [stdout]     |         ^^^ help: convert the identifier to snake case: `m11`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M01` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:270:9
[INFO] [stdout]     |
[INFO] [stdout] 270 |     let M01 = n0 * n1;
[INFO] [stdout]     |         ^^^ help: convert the identifier to snake case: `m01`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M_core` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:285:36
[INFO] [stdout]     |
[INFO] [stdout] 285 |     let (p11_est, p22_est, m_core, M_core, m_peri, M_peri) = if dens0 >= dens1 {
[INFO] [stdout]     |                                    ^^^^^^ help: convert the identifier to snake case: `m_core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M_peri` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:285:52
[INFO] [stdout]     |
[INFO] [stdout] 285 |     let (p11_est, p22_est, m_core, M_core, m_peri, M_peri) = if dens0 >= dens1 {
[INFO] [stdout]     |                                                    ^^^^^^ help: convert the identifier to snake case: `m_peri`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/graph.rs:54:33
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn node_count(&self) -> 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/graph.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn edge_count(&self) -> usize {
[INFO] [stdout]    |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/graph.rs:62:55
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn count_partition_value(&self, value: i8) -> usize {
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/lib.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn add(a: f64, b: f64) -> PyResult<f64> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiply` is never used
[INFO] [stdout]   --> src/lib.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn multiply(a: f64, b: f64) -> PyResult<f64> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `T` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let mut T = initial_temp;
[INFO] [stdout]     |             ^ help: convert the identifier to snake case: `t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M00` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:268:9
[INFO] [stdout]     |
[INFO] [stdout] 268 |     let M00 = if n0 > 1 { n0 * (n0 - 1) / 2 } else { 0 };
[INFO] [stdout]     |         ^^^ help: convert the identifier to snake case: `m00`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M11` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let M11 = if n1 > 1 { n1 * (n1 - 1) / 2 } else { 0 };
[INFO] [stdout]     |         ^^^ help: convert the identifier to snake case: `m11`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M01` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:270:9
[INFO] [stdout]     |
[INFO] [stdout] 270 |     let M01 = n0 * n1;
[INFO] [stdout]     |         ^^^ help: convert the identifier to snake case: `m01`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M_core` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:285:36
[INFO] [stdout]     |
[INFO] [stdout] 285 |     let (p11_est, p22_est, m_core, M_core, m_peri, M_peri) = if dens0 >= dens1 {
[INFO] [stdout]     |                                    ^^^^^^ help: convert the identifier to snake case: `m_core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M_peri` should have a snake case name
[INFO] [stdout]    --> src/algorithms.rs:285:52
[INFO] [stdout]     |
[INFO] [stdout] 285 |     let (p11_est, p22_est, m_core, M_core, m_peri, M_peri) = if dens0 >= dens1 {
[INFO] [stdout]     |                                                    ^^^^^^ help: convert the identifier to snake case: `m_peri`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/graph.rs:54:33
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn node_count(&self) -> 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/graph.rs:58:33
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn edge_count(&self) -> usize {
[INFO] [stdout]    |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/graph.rs:62:55
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn count_partition_value(&self, value: i8) -> usize {
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `faster_cp` (lib) due to 3 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c68243fb1056b94869545389e09c971902e3f2d7b5c6848614c9b95f23d30430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c68243fb1056b94869545389e09c971902e3f2d7b5c6848614c9b95f23d30430", kill_on_drop: false }`
[INFO] [stdout] c68243fb1056b94869545389e09c971902e3f2d7b5c6848614c9b95f23d30430
