[INFO] fetching crate maf_cal 0.1.2...
[INFO] testing maf_cal-0.1.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate maf_cal 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate maf_cal 0.1.2
[INFO] finished tweaking crates.io crate maf_cal 0.1.2
[INFO] tweaked toml for crates.io crate maf_cal 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate maf_cal 0.1.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate maf_cal 0.1.2 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" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6273ec475134f33215592b1b054d429b3402bca36a78f55330cf381d9ddec16f
[INFO] running `Command { std: "docker" "start" "-a" "6273ec475134f33215592b1b054d429b3402bca36a78f55330cf381d9ddec16f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6273ec475134f33215592b1b054d429b3402bca36a78f55330cf381d9ddec16f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6273ec475134f33215592b1b054d429b3402bca36a78f55330cf381d9ddec16f", kill_on_drop: false }`
[INFO] [stdout] 6273ec475134f33215592b1b054d429b3402bca36a78f55330cf381d9ddec16f
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbf22897d2348930eaa498300beebf53349b2ace808fece6bd2d731d2095fa49
[INFO] running `Command { std: "docker" "start" "-a" "fbf22897d2348930eaa498300beebf53349b2ace808fece6bd2d731d2095fa49", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.186
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling csv v1.2.2
[INFO] [stderr]    Compiling maf_cal v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x_data`
[INFO] [stdout]    --> src/main.rs:133:14
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn curve_fit(x_data: &[f32], y_data: &[f32]) -> (f32, f32, f32) {
[INFO] [stdout]     |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_data`
[INFO] [stdout]    --> src/main.rs:133:30
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn curve_fit(x_data: &[f32], y_data: &[f32]) -> (f32, f32, f32) {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `curve_fit` is never used
[INFO] [stdout]    --> src/main.rs:133:4
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn curve_fit(x_data: &[f32], y_data: &[f32]) -> (f32, f32, f32) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let bits = unsafe { std::mem::transmute::<f32, u32>(self.0) };
[INFO] [stdout]    |                             -------------------------------^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: replace this with: `f32::to_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.90s
[INFO] running `Command { std: "docker" "inspect" "fbf22897d2348930eaa498300beebf53349b2ace808fece6bd2d731d2095fa49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf22897d2348930eaa498300beebf53349b2ace808fece6bd2d731d2095fa49", kill_on_drop: false }`
[INFO] [stdout] fbf22897d2348930eaa498300beebf53349b2ace808fece6bd2d731d2095fa49
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4565f34cd2749b4f5b8e36b092ab062d29280e74dfad4cb5e48d550a30e55ae2
[INFO] running `Command { std: "docker" "start" "-a" "4565f34cd2749b4f5b8e36b092ab062d29280e74dfad4cb5e48d550a30e55ae2", kill_on_drop: false }`
[INFO] [stderr]    Compiling maf_cal v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x_data`
[INFO] [stdout]    --> src/main.rs:133:14
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn curve_fit(x_data: &[f32], y_data: &[f32]) -> (f32, f32, f32) {
[INFO] [stdout]     |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_data`
[INFO] [stdout]    --> src/main.rs:133:30
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn curve_fit(x_data: &[f32], y_data: &[f32]) -> (f32, f32, f32) {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `curve_fit` is never used
[INFO] [stdout]    --> src/main.rs:133:4
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn curve_fit(x_data: &[f32], y_data: &[f32]) -> (f32, f32, f32) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]   --> src/data.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let bits = unsafe { std::mem::transmute::<f32, u32>(self.0) };
[INFO] [stdout]    |                             -------------------------------^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: replace this with: `f32::to_bits`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "4565f34cd2749b4f5b8e36b092ab062d29280e74dfad4cb5e48d550a30e55ae2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4565f34cd2749b4f5b8e36b092ab062d29280e74dfad4cb5e48d550a30e55ae2", kill_on_drop: false }`
[INFO] [stdout] 4565f34cd2749b4f5b8e36b092ab062d29280e74dfad4cb5e48d550a30e55ae2
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fbafd2f075f0bdb24a70d8e7aca3137e42f25d7c889954e05bff0b0f3ceffa47
[INFO] running `Command { std: "docker" "start" "-a" "fbafd2f075f0bdb24a70d8e7aca3137e42f25d7c889954e05bff0b0f3ceffa47", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `x_data`
[INFO] [stderr]    --> src/main.rs:133:14
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn curve_fit(x_data: &[f32], y_data: &[f32]) -> (f32, f32, f32) {
[INFO] [stderr]     |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_x_data`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y_data`
[INFO] [stderr]    --> src/main.rs:133:30
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn curve_fit(x_data: &[f32], y_data: &[f32]) -> (f32, f32, f32) {
[INFO] [stderr]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_data`
[INFO] [stderr] 
[INFO] [stderr] warning: function `curve_fit` is never used
[INFO] [stderr]    --> src/main.rs:133:4
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn curve_fit(x_data: &[f32], y_data: &[f32]) -> (f32, f32, f32) {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary transmute
[INFO] [stderr]   --> src/data.rs:15:29
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let bits = unsafe { std::mem::transmute::<f32, u32>(self.0) };
[INFO] [stderr]    |                             -------------------------------^^^^^^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: replace this with: `f32::to_bits`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `maf_cal` (bin "maf_cal" test) generated 4 warnings (run `cargo fix --bin "maf_cal" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/maf_cal-d68b217327696b04)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fbafd2f075f0bdb24a70d8e7aca3137e42f25d7c889954e05bff0b0f3ceffa47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbafd2f075f0bdb24a70d8e7aca3137e42f25d7c889954e05bff0b0f3ceffa47", kill_on_drop: false }`
[INFO] [stdout] fbafd2f075f0bdb24a70d8e7aca3137e42f25d7c889954e05bff0b0f3ceffa47