[INFO] updating cached repository https://github.com/benschinn/img-catechesis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b1885f6c10f7f8e69c7e54aa0e6f895652e59d7
[INFO] testing benschinn/img-catechesis against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenschinn%2Fimg-catechesis" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/benschinn/img-catechesis on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benschinn/img-catechesis
[INFO] finished tweaking git repo https://github.com/benschinn/img-catechesis
[INFO] tweaked toml for git repo https://github.com/benschinn/img-catechesis written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/benschinn/img-catechesis already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4263f02f17f5d54d67b4c058f4a4737d3a69086e86cb890fee0ba2567a4a0ff5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4263f02f17f5d54d67b4c058f4a4737d3a69086e86cb890fee0ba2567a4a0ff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4263f02f17f5d54d67b4c058f4a4737d3a69086e86cb890fee0ba2567a4a0ff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4263f02f17f5d54d67b4c058f4a4737d3a69086e86cb890fee0ba2567a4a0ff5", kill_on_drop: false }`
[INFO] [stdout] 4263f02f17f5d54d67b4c058f4a4737d3a69086e86cb890fee0ba2567a4a0ff5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d831e922b330057af1d7dfc85190230887fb5552c30d327583a4fdd5b7cb19e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0d831e922b330057af1d7dfc85190230887fb5552c30d327583a4fdd5b7cb19e", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling png v0.15.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]    Compiling rayon v1.2.1
[INFO] [stderr]    Compiling color-convert v0.1.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling tiff v0.3.1
[INFO] [stderr]    Compiling image v0.22.3
[INFO] [stderr]    Compiling img-catechesis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `GenericImage`
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use image::{GenericImage, GenericImageView, ImageBuffer, RgbImage};
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GenericImageView`
[INFO] [stdout]  --> src/main.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use image::{GenericImage, GenericImageView, ImageBuffer, RgbImage};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:19:55
[INFO] [stdout]    |
[INFO] [stdout] 19 |      let mut img = ImageBuffer::from_fn(512, 512, |x, y| {
[INFO] [stdout]    |                                                       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `colors`
[INFO] [stdout]   --> src/main.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |      let colors = json.get("Color")
[INFO] [stdout]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_colors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `img`
[INFO] [stdout]   --> src/main.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |      let img: RgbImage = ImageBuffer::new(512, 512);
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_img`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/main.rs:28:11
[INFO] [stdout]    |
[INFO] [stdout] 28 |      let (width, height) = img.dimensions();
[INFO] [stdout]    |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/main.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |      let (width, height) = img.dimensions();
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pixel`
[INFO] [stdout]   --> src/main.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |      let pixel = img[(100, 100)];
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_pixel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.63s
[INFO] running `Command { std: "docker" "inspect" "0d831e922b330057af1d7dfc85190230887fb5552c30d327583a4fdd5b7cb19e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d831e922b330057af1d7dfc85190230887fb5552c30d327583a4fdd5b7cb19e", kill_on_drop: false }`
[INFO] [stdout] 0d831e922b330057af1d7dfc85190230887fb5552c30d327583a4fdd5b7cb19e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8ceb37340259fbdf9dbf90f28e791c6b27c2711ead9d0e5889f472a3d0b53f5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e8ceb37340259fbdf9dbf90f28e791c6b27c2711ead9d0e5889f472a3d0b53f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling img-catechesis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `GenericImage`
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use image::{GenericImage, GenericImageView, ImageBuffer, RgbImage};
[INFO] [stdout]   |             ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GenericImageView`
[INFO] [stdout]  --> src/main.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use image::{GenericImage, GenericImageView, ImageBuffer, RgbImage};
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:19:55
[INFO] [stdout]    |
[INFO] [stdout] 19 |      let mut img = ImageBuffer::from_fn(512, 512, |x, y| {
[INFO] [stdout]    |                                                       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `colors`
[INFO] [stdout]   --> src/main.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |      let colors = json.get("Color")
[INFO] [stdout]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_colors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `img`
[INFO] [stdout]   --> src/main.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |      let img: RgbImage = ImageBuffer::new(512, 512);
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_img`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> src/main.rs:28:11
[INFO] [stdout]    |
[INFO] [stdout] 28 |      let (width, height) = img.dimensions();
[INFO] [stdout]    |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> src/main.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |      let (width, height) = img.dimensions();
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pixel`
[INFO] [stdout]   --> src/main.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |      let pixel = img[(100, 100)];
[INFO] [stdout]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_pixel`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "e8ceb37340259fbdf9dbf90f28e791c6b27c2711ead9d0e5889f472a3d0b53f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8ceb37340259fbdf9dbf90f28e791c6b27c2711ead9d0e5889f472a3d0b53f5", kill_on_drop: false }`
[INFO] [stdout] e8ceb37340259fbdf9dbf90f28e791c6b27c2711ead9d0e5889f472a3d0b53f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 42573e48d22ccfa91294900b4f3ad048b5d8288d6d84b21e90047aecd5a04cff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "42573e48d22ccfa91294900b4f3ad048b5d8288d6d84b21e90047aecd5a04cff", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `GenericImage`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:4:13
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 4 | use image::{GenericImage, GenericImageView, ImageBuffer, RgbImage};
[INFO] [stdout] 
[INFO] [stderr]   |             ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `GenericImageView`
[INFO] [stderr]  --> src/main.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 | use image::{GenericImage, GenericImageView, ImageBuffer, RgbImage};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/main.rs:19:55
[INFO] [stderr]    |
[INFO] [stderr] 19 |      let mut img = ImageBuffer::from_fn(512, 512, |x, y| {
[INFO] [stderr]    |                                                       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `colors`
[INFO] [stderr]   --> src/main.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 |      let colors = json.get("Color")
[INFO] [stderr]    |          ^^^^^^ help: if this is intentional, prefix it with an underscore: `_colors`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `img`
[INFO] [stderr]   --> src/main.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 |      let img: RgbImage = ImageBuffer::new(512, 512);
[INFO] [stderr]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_img`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width`
[INFO] [stderr]   --> src/main.rs:28:11
[INFO] [stderr]    |
[INFO] [stderr] 28 |      let (width, height) = img.dimensions();
[INFO] [stderr]    |           ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height`
[INFO] [stderr]   --> src/main.rs:28:18
[INFO] [stderr]    |
[INFO] [stderr] 28 |      let (width, height) = img.dimensions();
[INFO] [stderr]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pixel`
[INFO] [stderr]   --> src/main.rs:31:10
[INFO] [stderr]    |
[INFO] [stderr] 31 |      let pixel = img[(100, 100)];
[INFO] [stderr]    |          ^^^^^ help: if this is intentional, prefix it with an underscore: `_pixel`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/img_catechesis-92b1e9b88bba692d
[INFO] running `Command { std: "docker" "inspect" "42573e48d22ccfa91294900b4f3ad048b5d8288d6d84b21e90047aecd5a04cff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42573e48d22ccfa91294900b4f3ad048b5d8288d6d84b21e90047aecd5a04cff", kill_on_drop: false }`
[INFO] [stdout] 42573e48d22ccfa91294900b4f3ad048b5d8288d6d84b21e90047aecd5a04cff