Dec 18 02:29:00.375 INFO checking chriserin/artbot against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 02:29:00.375 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/chriserin/artbot:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 02:29:00.684 INFO [stdout] 141c6386679a212a42e2c25a7e4f2e309f2d1f5bcddbaa7cdd601a5c014066be
Dec 18 02:29:00.686 INFO running `"docker" "start" "-a" "141c6386679a212a42e2c25a7e4f2e309f2d1f5bcddbaa7cdd601a5c014066be"`
Dec 18 02:29:01.668 INFO [stderr]     Checking num-bigint v0.1.39
Dec 18 02:29:01.668 INFO [stderr]     Checking url v1.5.0
Dec 18 02:29:02.820 INFO [stderr]     Checking num-rational v0.1.38
Dec 18 02:29:03.369 INFO [stderr]     Checking hyper v0.10.12
Dec 18 02:29:03.832 INFO [stderr]     Checking num v0.1.39
Dec 18 02:29:03.832 INFO [stderr]     Checking image v0.13.0
Dec 18 02:29:08.936 INFO [stderr]     Checking iron v0.5.1
Dec 18 02:29:09.640 INFO [stderr]     Checking router v0.5.1
Dec 18 02:29:10.356 INFO [stderr]     Checking artbot v0.1.0 (/opt/crater/workdir)
Dec 18 02:29:11.224 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 02:29:11.224 INFO [stderr]   --> src/main.rs:14:5
Dec 18 02:29:11.224 INFO [stderr]    |
Dec 18 02:29:11.224 INFO [stderr] 14 | use std::fs::File;
Dec 18 02:29:11.224 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 18 02:29:11.224 INFO [stderr]    |
Dec 18 02:29:11.224 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 02:29:11.224 INFO [stderr] 
Dec 18 02:29:11.224 INFO [stderr] warning: unused import: `std::path::Path`
Dec 18 02:29:11.224 INFO [stderr]   --> src/main.rs:15:5
Dec 18 02:29:11.224 INFO [stderr]    |
Dec 18 02:29:11.224 INFO [stderr] 15 | use std::path::Path;
Dec 18 02:29:11.224 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 02:29:11.224 INFO [stderr] 
Dec 18 02:29:11.224 INFO [stderr] warning: unused import: `iron::mime`
Dec 18 02:29:11.224 INFO [stderr]    --> src/main.rs:158:13
Dec 18 02:29:11.224 INFO [stderr]     |
Dec 18 02:29:11.224 INFO [stderr] 158 |         use iron::mime;
Dec 18 02:29:11.224 INFO [stderr]     |             ^^^^^^^^^^
Dec 18 02:29:11.224 INFO [stderr] 
Dec 18 02:29:11.224 INFO [stderr] warning: unused import: `iron::mime`
Dec 18 02:29:11.225 INFO [stderr]    --> src/main.rs:170:13
Dec 18 02:29:11.225 INFO [stderr]     |
Dec 18 02:29:11.225 INFO [stderr] 170 |         use iron::mime;
Dec 18 02:29:11.225 INFO [stderr]     |             ^^^^^^^^^^
Dec 18 02:29:11.225 INFO [stderr] 
Dec 18 02:29:11.236 INFO [stderr] warning: unused import: `std::fs::File`
Dec 18 02:29:11.236 INFO [stderr]   --> src/main.rs:14:5
Dec 18 02:29:11.236 INFO [stderr]    |
Dec 18 02:29:11.236 INFO [stderr] 14 | use std::fs::File;
Dec 18 02:29:11.236 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 18 02:29:11.236 INFO [stderr]    |
Dec 18 02:29:11.236 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 02:29:11.236 INFO [stderr] 
Dec 18 02:29:11.236 INFO [stderr] warning: unused import: `std::path::Path`
Dec 18 02:29:11.236 INFO [stderr]   --> src/main.rs:15:5
Dec 18 02:29:11.236 INFO [stderr]    |
Dec 18 02:29:11.236 INFO [stderr] 15 | use std::path::Path;
Dec 18 02:29:11.236 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 18 02:29:11.236 INFO [stderr] 
Dec 18 02:29:11.236 INFO [stderr] warning: unused import: `iron::mime`
Dec 18 02:29:11.236 INFO [stderr]    --> src/main.rs:158:13
Dec 18 02:29:11.236 INFO [stderr]     |
Dec 18 02:29:11.236 INFO [stderr] 158 |         use iron::mime;
Dec 18 02:29:11.236 INFO [stderr]     |             ^^^^^^^^^^
Dec 18 02:29:11.236 INFO [stderr] 
Dec 18 02:29:11.236 INFO [stderr] warning: unused import: `iron::mime`
Dec 18 02:29:11.236 INFO [stderr]    --> src/main.rs:170:13
Dec 18 02:29:11.236 INFO [stderr]     |
Dec 18 02:29:11.236 INFO [stderr] 170 |         use iron::mime;
Dec 18 02:29:11.236 INFO [stderr]     |             ^^^^^^^^^^
Dec 18 02:29:11.237 INFO [stderr] 
Dec 18 02:29:11.417 INFO [stderr] warning: value assigned to `r` is never read
Dec 18 02:29:11.417 INFO [stderr]   --> src/main.rs:64:17
Dec 18 02:29:11.417 INFO [stderr]    |
Dec 18 02:29:11.417 INFO [stderr] 64 |         let mut r = 0;
Dec 18 02:29:11.417 INFO [stderr]    |                 ^
Dec 18 02:29:11.417 INFO [stderr]    |
Dec 18 02:29:11.417 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 02:29:11.417 INFO [stderr] 
Dec 18 02:29:11.417 INFO [stderr] warning: value assigned to `g` is never read
Dec 18 02:29:11.417 INFO [stderr]   --> src/main.rs:65:17
Dec 18 02:29:11.417 INFO [stderr]    |
Dec 18 02:29:11.417 INFO [stderr] 65 |         let mut g = 0;
Dec 18 02:29:11.417 INFO [stderr]    |                 ^
Dec 18 02:29:11.417 INFO [stderr] 
Dec 18 02:29:11.417 INFO [stderr] warning: value assigned to `b` is never read
Dec 18 02:29:11.417 INFO [stderr]   --> src/main.rs:66:17
Dec 18 02:29:11.417 INFO [stderr]    |
Dec 18 02:29:11.417 INFO [stderr] 66 |         let mut b = 0;
Dec 18 02:29:11.417 INFO [stderr]    |                 ^
Dec 18 02:29:11.418 INFO [stderr] 
Dec 18 02:29:11.418 INFO [stderr] warning: unused variable: `req`
Dec 18 02:29:11.418 INFO [stderr]    --> src/main.rs:169:29
Dec 18 02:29:11.418 INFO [stderr]     |
Dec 18 02:29:11.418 INFO [stderr] 169 |     fn random_image_handler(req: &mut Request) -> IronResult<Response> {
Dec 18 02:29:11.418 INFO [stderr]     |                             ^^^ help: consider using `_req` instead
Dec 18 02:29:11.418 INFO [stderr]     |
Dec 18 02:29:11.418 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 02:29:11.418 INFO [stderr] 
Dec 18 02:29:11.428 INFO [stderr] warning: value assigned to `r` is never read
Dec 18 02:29:11.428 INFO [stderr]   --> src/main.rs:64:17
Dec 18 02:29:11.428 INFO [stderr]    |
Dec 18 02:29:11.428 INFO [stderr] 64 |         let mut r = 0;
Dec 18 02:29:11.428 INFO [stderr]    |                 ^
Dec 18 02:29:11.428 INFO [stderr]    |
Dec 18 02:29:11.428 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 18 02:29:11.428 INFO [stderr] 
Dec 18 02:29:11.428 INFO [stderr] warning: value assigned to `g` is never read
Dec 18 02:29:11.428 INFO [stderr]   --> src/main.rs:65:17
Dec 18 02:29:11.428 INFO [stderr]    |
Dec 18 02:29:11.428 INFO [stderr] 65 |         let mut g = 0;
Dec 18 02:29:11.428 INFO [stderr]    |                 ^
Dec 18 02:29:11.429 INFO [stderr] 
Dec 18 02:29:11.429 INFO [stderr] warning: value assigned to `b` is never read
Dec 18 02:29:11.429 INFO [stderr]   --> src/main.rs:66:17
Dec 18 02:29:11.429 INFO [stderr]    |
Dec 18 02:29:11.429 INFO [stderr] 66 |         let mut b = 0;
Dec 18 02:29:11.429 INFO [stderr]    |                 ^
Dec 18 02:29:11.429 INFO [stderr] 
Dec 18 02:29:11.429 INFO [stderr] warning: unused variable: `req`
Dec 18 02:29:11.429 INFO [stderr]    --> src/main.rs:169:29
Dec 18 02:29:11.429 INFO [stderr]     |
Dec 18 02:29:11.429 INFO [stderr] 169 |     fn random_image_handler(req: &mut Request) -> IronResult<Response> {
Dec 18 02:29:11.429 INFO [stderr]     |                             ^^^ help: consider using `_req` instead
Dec 18 02:29:11.429 INFO [stderr]     |
Dec 18 02:29:11.429 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 02:29:11.429 INFO [stderr] 
Dec 18 02:29:11.429 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:29:11.429 INFO [stderr]   --> src/main.rs:41:9
Dec 18 02:29:11.429 INFO [stderr]    |
Dec 18 02:29:11.429 INFO [stderr] 41 |     let mut x_adjust = xor_rand.gen_range(0.4, 256.0);
Dec 18 02:29:11.429 INFO [stderr]    |         ----^^^^^^^^
Dec 18 02:29:11.429 INFO [stderr]    |         |
Dec 18 02:29:11.429 INFO [stderr]    |         help: remove this `mut`
Dec 18 02:29:11.429 INFO [stderr]    |
Dec 18 02:29:11.429 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 02:29:11.429 INFO [stderr] 
Dec 18 02:29:11.429 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:29:11.429 INFO [stderr]   --> src/main.rs:42:9
Dec 18 02:29:11.429 INFO [stderr]    |
Dec 18 02:29:11.429 INFO [stderr] 42 |     let mut y_adjust = xor_rand.gen_range(0.4, 256.0);
Dec 18 02:29:11.429 INFO [stderr]    |         ----^^^^^^^^
Dec 18 02:29:11.429 INFO [stderr]    |         |
Dec 18 02:29:11.429 INFO [stderr]    |         help: remove this `mut`
Dec 18 02:29:11.429 INFO [stderr] 
Dec 18 02:29:11.429 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:29:11.429 INFO [stderr]   --> src/main.rs:43:9
Dec 18 02:29:11.429 INFO [stderr]    |
Dec 18 02:29:11.429 INFO [stderr] 43 |     let mut color_adjust = xor_rand.gen_range(10.0, 256.0);
Dec 18 02:29:11.429 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 18 02:29:11.429 INFO [stderr]    |         |
Dec 18 02:29:11.429 INFO [stderr]    |         help: remove this `mut`
Dec 18 02:29:11.429 INFO [stderr] 
Dec 18 02:29:11.429 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:29:11.429 INFO [stderr]   --> src/main.rs:45:9
Dec 18 02:29:11.429 INFO [stderr]    |
Dec 18 02:29:11.429 INFO [stderr] 45 |     let mut julia_adjustor_x = xor_rand.gen_range(-0.6, 0.6);
Dec 18 02:29:11.429 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^
Dec 18 02:29:11.429 INFO [stderr]    |         |
Dec 18 02:29:11.429 INFO [stderr]    |         help: remove this `mut`
Dec 18 02:29:11.429 INFO [stderr] 
Dec 18 02:29:11.440 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:29:11.440 INFO [stderr]    --> src/main.rs:165:9
Dec 18 02:29:11.440 INFO [stderr]     |
Dec 18 02:29:11.440 INFO [stderr] 165 |         image_rgb.save(&mut bytes, image::PNG);
Dec 18 02:29:11.440 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:29:11.440 INFO [stderr]     |
Dec 18 02:29:11.440 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 02:29:11.440 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:29:11.440 INFO [stderr] 
Dec 18 02:29:11.440 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:29:11.440 INFO [stderr]    --> src/main.rs:178:9
Dec 18 02:29:11.440 INFO [stderr]     |
Dec 18 02:29:11.440 INFO [stderr] 178 |         image_rgb.save(&mut bytes, image::PNG);
Dec 18 02:29:11.440 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:29:11.440 INFO [stderr]     |
Dec 18 02:29:11.440 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:29:11.440 INFO [stderr] 
Dec 18 02:29:11.468 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:29:11.468 INFO [stderr]   --> src/main.rs:41:9
Dec 18 02:29:11.468 INFO [stderr]    |
Dec 18 02:29:11.468 INFO [stderr] 41 |     let mut x_adjust = xor_rand.gen_range(0.4, 256.0);
Dec 18 02:29:11.468 INFO [stderr]    |         ----^^^^^^^^
Dec 18 02:29:11.468 INFO [stderr]    |         |
Dec 18 02:29:11.468 INFO [stderr]    |         help: remove this `mut`
Dec 18 02:29:11.468 INFO [stderr]    |
Dec 18 02:29:11.468 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 02:29:11.468 INFO [stderr] 
Dec 18 02:29:11.468 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:29:11.468 INFO [stderr]   --> src/main.rs:42:9
Dec 18 02:29:11.468 INFO [stderr]    |
Dec 18 02:29:11.468 INFO [stderr] 42 |     let mut y_adjust = xor_rand.gen_range(0.4, 256.0);
Dec 18 02:29:11.468 INFO [stderr]    |         ----^^^^^^^^
Dec 18 02:29:11.468 INFO [stderr]    |         |
Dec 18 02:29:11.469 INFO [stderr]    |         help: remove this `mut`
Dec 18 02:29:11.469 INFO [stderr] 
Dec 18 02:29:11.469 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:29:11.469 INFO [stderr]   --> src/main.rs:43:9
Dec 18 02:29:11.469 INFO [stderr]    |
Dec 18 02:29:11.469 INFO [stderr] 43 |     let mut color_adjust = xor_rand.gen_range(10.0, 256.0);
Dec 18 02:29:11.469 INFO [stderr]    |         ----^^^^^^^^^^^^
Dec 18 02:29:11.469 INFO [stderr]    |         |
Dec 18 02:29:11.469 INFO [stderr]    |         help: remove this `mut`
Dec 18 02:29:11.469 INFO [stderr] 
Dec 18 02:29:11.469 INFO [stderr] warning: variable does not need to be mutable
Dec 18 02:29:11.469 INFO [stderr]   --> src/main.rs:45:9
Dec 18 02:29:11.469 INFO [stderr]    |
Dec 18 02:29:11.469 INFO [stderr] 45 |     let mut julia_adjustor_x = xor_rand.gen_range(-0.6, 0.6);
Dec 18 02:29:11.469 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^
Dec 18 02:29:11.469 INFO [stderr]    |         |
Dec 18 02:29:11.469 INFO [stderr]    |         help: remove this `mut`
Dec 18 02:29:11.469 INFO [stderr] 
Dec 18 02:29:11.476 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:29:11.476 INFO [stderr]    --> src/main.rs:165:9
Dec 18 02:29:11.476 INFO [stderr]     |
Dec 18 02:29:11.476 INFO [stderr] 165 |         image_rgb.save(&mut bytes, image::PNG);
Dec 18 02:29:11.476 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:29:11.476 INFO [stderr]     |
Dec 18 02:29:11.476 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 02:29:11.476 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:29:11.476 INFO [stderr] 
Dec 18 02:29:11.476 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 02:29:11.476 INFO [stderr]    --> src/main.rs:178:9
Dec 18 02:29:11.476 INFO [stderr]     |
Dec 18 02:29:11.476 INFO [stderr] 178 |         image_rgb.save(&mut bytes, image::PNG);
Dec 18 02:29:11.476 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 02:29:11.476 INFO [stderr]     |
Dec 18 02:29:11.476 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 02:29:11.476 INFO [stderr] 
Dec 18 02:29:11.540 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.02s
Dec 18 02:29:12.554 INFO running `"docker" "inspect" "141c6386679a212a42e2c25a7e4f2e309f2d1f5bcddbaa7cdd601a5c014066be"`
Dec 18 02:29:12.880 INFO running `"docker" "rm" "-f" "141c6386679a212a42e2c25a7e4f2e309f2d1f5bcddbaa7cdd601a5c014066be"`
Dec 18 02:29:13.168 INFO [stdout] 141c6386679a212a42e2c25a7e4f2e309f2d1f5bcddbaa7cdd601a5c014066be