[INFO] fetching crate maf_cal 0.1.2...
[INFO] checking maf_cal-0.1.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate maf_cal 0.1.2 into /workspace/builds/worker-0-tc1/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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate maf_cal 0.1.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bae635172ea9ba2ef26ced55da6116ada0dac0dd1966de5ba9ff0c99a5669e8
[INFO] running `Command { std: "docker" "start" "-a" "3bae635172ea9ba2ef26ced55da6116ada0dac0dd1966de5ba9ff0c99a5669e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bae635172ea9ba2ef26ced55da6116ada0dac0dd1966de5ba9ff0c99a5669e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bae635172ea9ba2ef26ced55da6116ada0dac0dd1966de5ba9ff0c99a5669e8", kill_on_drop: false }`
[INFO] [stdout] 3bae635172ea9ba2ef26ced55da6116ada0dac0dd1966de5ba9ff0c99a5669e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dab6bf1b0b7e188689c803b0e70ff8255f49e1b9cb6420702b179178e413d051
[INFO] running `Command { std: "docker" "start" "-a" "dab6bf1b0b7e188689c803b0e70ff8255f49e1b9cb6420702b179178e413d051", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.186
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]     Checking 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)]` 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)]` 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] [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)]` 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)]` 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 4.78s
[INFO] running `Command { std: "docker" "inspect" "dab6bf1b0b7e188689c803b0e70ff8255f49e1b9cb6420702b179178e413d051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab6bf1b0b7e188689c803b0e70ff8255f49e1b9cb6420702b179178e413d051", kill_on_drop: false }`
[INFO] [stdout] dab6bf1b0b7e188689c803b0e70ff8255f49e1b9cb6420702b179178e413d051