[INFO] fetching crate maf_cal 0.1.2...
[INFO] testing maf_cal-0.1.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate maf_cal 0.1.2 into /workspace/builds/worker-3-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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate maf_cal 0.1.2 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17dc67a7ef8d4f6954f4ce0975f3ea72a5da50a53c80d052a7a94871778d7cfd
[INFO] running `Command { std: "docker" "start" "-a" "17dc67a7ef8d4f6954f4ce0975f3ea72a5da50a53c80d052a7a94871778d7cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17dc67a7ef8d4f6954f4ce0975f3ea72a5da50a53c80d052a7a94871778d7cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17dc67a7ef8d4f6954f4ce0975f3ea72a5da50a53c80d052a7a94871778d7cfd", kill_on_drop: false }`
[INFO] [stdout] 17dc67a7ef8d4f6954f4ce0975f3ea72a5da50a53c80d052a7a94871778d7cfd
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c4688d0dc7a8a7cf40b20229a13eb4f97613b35d9b081efcbd96519eb21acaa
[INFO] running `Command { std: "docker" "start" "-a" "4c4688d0dc7a8a7cf40b20229a13eb4f97613b35d9b081efcbd96519eb21acaa", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.186
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling ryu v1.0.15
[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 5.20s
[INFO] running `Command { std: "docker" "inspect" "4c4688d0dc7a8a7cf40b20229a13eb4f97613b35d9b081efcbd96519eb21acaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c4688d0dc7a8a7cf40b20229a13eb4f97613b35d9b081efcbd96519eb21acaa", kill_on_drop: false }`
[INFO] [stdout] 4c4688d0dc7a8a7cf40b20229a13eb4f97613b35d9b081efcbd96519eb21acaa
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d17592bec873546d65c06ae0287ffca5e1988feee587d76eee3584591eeef8f8
[INFO] running `Command { std: "docker" "start" "-a" "d17592bec873546d65c06ae0287ffca5e1988feee587d76eee3584591eeef8f8", 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 0.46s
[INFO] running `Command { std: "docker" "inspect" "d17592bec873546d65c06ae0287ffca5e1988feee587d76eee3584591eeef8f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d17592bec873546d65c06ae0287ffca5e1988feee587d76eee3584591eeef8f8", kill_on_drop: false }`
[INFO] [stdout] d17592bec873546d65c06ae0287ffca5e1988feee587d76eee3584591eeef8f8
[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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4056f7af5401d06ed347a4ce6b1e6841f2fb7c2dc2b0c7a099ad121cb304e71b
[INFO] running `Command { std: "docker" "start" "-a" "4056f7af5401d06ed347a4ce6b1e6841f2fb7c2dc2b0c7a099ad121cb304e71b", 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" -p maf_cal --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[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" "4056f7af5401d06ed347a4ce6b1e6841f2fb7c2dc2b0c7a099ad121cb304e71b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4056f7af5401d06ed347a4ce6b1e6841f2fb7c2dc2b0c7a099ad121cb304e71b", kill_on_drop: false }`
[INFO] [stdout] 4056f7af5401d06ed347a4ce6b1e6841f2fb7c2dc2b0c7a099ad121cb304e71b