[INFO] updating cached repository nhellwig/treemap2d
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nhellwig/treemap2d
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nhellwig/treemap2d" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/nhellwig/treemap2d"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/nhellwig/treemap2d'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nhellwig/treemap2d" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/nhellwig/treemap2d"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/nhellwig/treemap2d'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 82241681155c3e0445d9416b08cb2c9122687396
[INFO] sha for GitHub repo nhellwig/treemap2d: 82241681155c3e0445d9416b08cb2c9122687396
[INFO] validating manifest of nhellwig/treemap2d on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nhellwig/treemap2d on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nhellwig/treemap2d
[INFO] finished frobbing nhellwig/treemap2d
[INFO] frobbed toml for nhellwig/treemap2d written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/nhellwig/treemap2d/Cargo.toml
[INFO] started frobbing nhellwig/treemap2d
[INFO] finished frobbing nhellwig/treemap2d
[INFO] frobbed toml for nhellwig/treemap2d written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/nhellwig/treemap2d/Cargo.toml
[INFO] crate nhellwig/treemap2d already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nhellwig/treemap2d against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-6/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/nhellwig/treemap2d:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cc68df0cb721a5f352982b2651d44f30eef0b2e4bdf6b24648c5c8b1d9dce65b
[INFO] running `"docker" "start" "-a" "cc68df0cb721a5f352982b2651d44f30eef0b2e4bdf6b24648c5c8b1d9dce65b"`
[INFO] [stderr]     Checking piston-graphics_api_version v0.1.0
[INFO] [stderr]     Checking nix v0.13.0
[INFO] [stderr]     Checking wayland-sys v0.21.12
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking piston2d-graphics v0.32.0
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking shader_version v0.5.0
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking piston-gfx_texture v0.36.0
[INFO] [stderr]     Checking wayland-commons v0.21.12
[INFO] [stderr]     Checking wayland-client v0.21.12
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.60.0
[INFO] [stderr]     Checking wayland-protocols v0.21.12
[INFO] [stderr]     Checking pistoncore-input v0.25.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking pistoncore-window v0.39.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.44.0
[INFO] [stderr]     Checking winit v0.18.1
[INFO] [stderr]     Checking piston v0.44.0
[INFO] [stderr]     Checking glutin v0.19.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.57.0
[INFO] [stderr]     Checking piston_window v0.94.0
[INFO] [stderr]     Checking treemap2d v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `max`, `min`
[INFO] [stderr]  --> src/main.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::cmp::{max, min};
[INFO] [stderr]   |                ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `max`, `min`
[INFO] [stderr]  --> src/main.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::cmp::{max, min};
[INFO] [stderr]   |                ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]    --> src/main.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             h => panic!("UNSUPPORTED"), // maybe try from
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_h`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `shift_hue`
[INFO] [stderr]    --> src/main.rs:247:5
[INFO] [stderr]     |
[INFO] [stderr] 247 |     fn shift_hue(&self, shift: u16) -> Color {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/main.rs:195:18
[INFO] [stderr]     |
[INFO] [stderr] 195 |             h if 0 <= h && h < 60 => (c, x, 0.0),
[INFO] [stderr]     |                  ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]    --> src/main.rs:201:13
[INFO] [stderr]     |
[INFO] [stderr] 201 |             h => panic!("UNSUPPORTED"), // maybe try from
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_h`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/main.rs:195:18
[INFO] [stderr]     |
[INFO] [stderr] 195 |             h if 0 <= h && h < 60 => (c, x, 0.0),
[INFO] [stderr]     |                  ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.62s
[INFO] running `"docker" "inspect" "cc68df0cb721a5f352982b2651d44f30eef0b2e4bdf6b24648c5c8b1d9dce65b"`
[INFO] running `"docker" "rm" "-f" "cc68df0cb721a5f352982b2651d44f30eef0b2e4bdf6b24648c5c8b1d9dce65b"`
[INFO] [stdout] cc68df0cb721a5f352982b2651d44f30eef0b2e4bdf6b24648c5c8b1d9dce65b