[INFO] cloning repository https://github.com/tcsc/firkin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tcsc/firkin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcsc%2Ffirkin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcsc%2Ffirkin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f8ac950d81e40067a46ec29d9f360e11a01a6bf
[INFO] testing tcsc/firkin against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcsc%2Ffirkin" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tcsc/firkin on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tcsc/firkin
[INFO] finished tweaking git repo https://github.com/tcsc/firkin
[INFO] tweaked toml for git repo https://github.com/tcsc/firkin written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/tcsc/firkin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.1.37
[INFO] [stderr]   Downloaded thread-id v3.1.0
[INFO] [stderr]   Downloaded generic-array v0.5.1
[INFO] [stderr]   Downloaded dimensioned v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 655dcb4270a2a268840b6ed16a17b5e2adf88fd406b243e0705bd9dac66c4fbe
[INFO] running `Command { std: "docker" "start" "-a" "655dcb4270a2a268840b6ed16a17b5e2adf88fd406b243e0705bd9dac66c4fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "655dcb4270a2a268840b6ed16a17b5e2adf88fd406b243e0705bd9dac66c4fbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "655dcb4270a2a268840b6ed16a17b5e2adf88fd406b243e0705bd9dac66c4fbe", kill_on_drop: false }`
[INFO] [stdout] 655dcb4270a2a268840b6ed16a17b5e2adf88fd406b243e0705bd9dac66c4fbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 163dd570931652cb03fb7e4c33e663de6a415a044819bbd021dbc56748d7ae5a
[INFO] running `Command { std: "docker" "start" "-a" "163dd570931652cb03fb7e4c33e663de6a415a044819bbd021dbc56748d7ae5a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.22
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling odds v0.2.25
[INFO] [stderr]    Compiling regex-syntax v0.4.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling dimensioned v0.6.0
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling bitflags v0.8.2
[INFO] [stderr]    Compiling unicode-segmentation v1.2.0
[INFO] [stderr]    Compiling log v0.3.7
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling nodrop v0.1.9
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling memmap v0.5.2
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling clap v2.24.2
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling tempfile v2.1.5
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling generic-array v0.5.1
[INFO] [stderr]    Compiling num-bigint v0.1.37
[INFO] [stderr]    Compiling num-complex v0.1.37
[INFO] [stderr]    Compiling env_logger v0.4.2
[INFO] [stderr]    Compiling num-rational v0.1.36
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling firkin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Path`
[INFO] [stdout]  --> src/cli.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DistPxFrac`
[INFO] [stdout]  --> src/cli.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use units::{DistPx, DistPxFrac, PX};
[INFO] [stdout]   |                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `image::Image`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use image::Image;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let i = image::MemoryMappedImage::<i16>::map_file(f.input.as_path(),
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]  --> src/distort.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn map_dst_pixel(u: DistPx, y: DistPx) -> (DistPxFrac, DistPxFrac) {
[INFO] [stdout]   |                  ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]  --> src/distort.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn map_dst_pixel(u: DistPx, y: DistPx) -> (DistPxFrac, DistPxFrac) {
[INFO] [stdout]   |                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `DistPxFrac`
[INFO] [stdout]   --> src/units.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type DistPxFrac = Pixel<f64>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/image.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn new(width: DistPx, height: DistPx) -> OwnedImage<PixelType> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mem`
[INFO] [stdout]    --> src/image.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     mem: Mmap,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `map_dst_pixel`
[INFO] [stdout]  --> src/distort.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn map_dst_pixel(u: DistPx, y: DistPx) -> (DistPxFrac, DistPxFrac) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sample_image`
[INFO] [stdout]   --> src/distort.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn sample_image<ImageType>(i: &ImageType, u: DistPxFrac, v: DistPxFrac) -> i16
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pixel_or_black`
[INFO] [stdout]   --> src/distort.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn pixel_or_black<ImageType>(i: &ImageType, x: DistPx, y: DistPx) -> f64
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "163dd570931652cb03fb7e4c33e663de6a415a044819bbd021dbc56748d7ae5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "163dd570931652cb03fb7e4c33e663de6a415a044819bbd021dbc56748d7ae5a", kill_on_drop: false }`
[INFO] [stdout] 163dd570931652cb03fb7e4c33e663de6a415a044819bbd021dbc56748d7ae5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8f83e107a4b41f843fe490594838483277b1202d9f4b4d757c0955ef7b1cc62
[INFO] running `Command { std: "docker" "start" "-a" "b8f83e107a4b41f843fe490594838483277b1202d9f4b4d757c0955ef7b1cc62", kill_on_drop: false }`
[INFO] [stderr]    Compiling firkin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Path`
[INFO] [stdout]  --> src/cli.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DistPxFrac`
[INFO] [stdout]  --> src/cli.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | use units::{DistPx, DistPxFrac, PX};
[INFO] [stdout]   |                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/distort.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |     use image::{self, OwnedImage, MutableImage};
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/distort.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |     use units::{self, PX, DistPx};
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `image::Image`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use image::Image;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let i = image::MemoryMappedImage::<i16>::map_file(f.input.as_path(),
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]  --> src/distort.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn map_dst_pixel(u: DistPx, y: DistPx) -> (DistPxFrac, DistPxFrac) {
[INFO] [stdout]   |                  ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]  --> src/distort.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn map_dst_pixel(u: DistPx, y: DistPx) -> (DistPxFrac, DistPxFrac) {
[INFO] [stdout]   |                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mem`
[INFO] [stdout]    --> src/image.rs:162:5
[INFO] [stdout]     |
[INFO] [stdout] 162 |     mem: Mmap,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `map_dst_pixel`
[INFO] [stdout]  --> src/distort.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn map_dst_pixel(u: DistPx, y: DistPx) -> (DistPxFrac, DistPxFrac) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "b8f83e107a4b41f843fe490594838483277b1202d9f4b4d757c0955ef7b1cc62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f83e107a4b41f843fe490594838483277b1202d9f4b4d757c0955ef7b1cc62", kill_on_drop: false }`
[INFO] [stdout] b8f83e107a4b41f843fe490594838483277b1202d9f4b4d757c0955ef7b1cc62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 37dfe04f8e99cb7138ca5e1054efcf720e06d3c7789ad762f8d26eab571efe06
[INFO] running `Command { std: "docker" "start" "-a" "37dfe04f8e99cb7138ca5e1054efcf720e06d3c7789ad762f8d26eab571efe06", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> src/cli.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `DistPxFrac`
[INFO] [stderr]  --> src/cli.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 | use units::{DistPx, DistPxFrac, PX};
[INFO] [stderr]   |                     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/distort.rs:76:17
[INFO] [stderr]    |
[INFO] [stderr] 76 |     use image::{self, OwnedImage, MutableImage};
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]   --> src/distort.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |     use units::{self, PX, DistPx};
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `image::Image`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use image::Image;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let i = image::MemoryMappedImage::<i16>::map_file(f.input.as_path(),
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]  --> src/distort.rs:7:18
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn map_dst_pixel(u: DistPx, y: DistPx) -> (DistPxFrac, DistPxFrac) {
[INFO] [stderr]   |                  ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]  --> src/distort.rs:7:29
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn map_dst_pixel(u: DistPx, y: DistPx) -> (DistPxFrac, DistPxFrac) {
[INFO] [stderr]   |                             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `mem`
[INFO] [stderr]    --> src/image.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 |     mem: Mmap,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `map_dst_pixel`
[INFO] [stderr]  --> src/distort.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn map_dst_pixel(u: DistPx, y: DistPx) -> (DistPxFrac, DistPxFrac) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `firkin` (bin "firkin" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 35.22s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/firkin-fe9626a6106e2e6a)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test cli::test_expand_filename::rooted_paths_are_not_expanded ... ok
[INFO] [stdout] test distort::test_sampling::bounds_check ... ok
[INFO] [stdout] test distort::test_sampling::x_axis_averaging ... ok
[INFO] [stdout] test distort::test_sampling::identity_sample ... ok
[INFO] [stdout] test distort::test_sampling::y_axis_averaging ... ok
[INFO] [stdout] test image::test_memory_mapped_image::mapping_a_non_existant_file_is_an_error ... ok
[INFO] [stdout] test units::test::create_float_values ... ok
[INFO] [stdout] test units::test::create_integer_values ... ok
[INFO] [stdout] test image::test_owned_image::create ... ok
[INFO] [stdout] test image::test_owned_image::indexing ... ok
[INFO] [stdout] test image::test_memory_mapped_image::mapping_an_image_with_bad_dimensions_is_an_error ... ok
[INFO] [stdout] test image::test_memory_mapped_image::mapping_an_i32_file ... ok
[INFO] [stdout] test image::test_memory_mapped_image::mapping_an_f32_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "37dfe04f8e99cb7138ca5e1054efcf720e06d3c7789ad762f8d26eab571efe06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37dfe04f8e99cb7138ca5e1054efcf720e06d3c7789ad762f8d26eab571efe06", kill_on_drop: false }`
[INFO] [stdout] 37dfe04f8e99cb7138ca5e1054efcf720e06d3c7789ad762f8d26eab571efe06