Nov 28 07:48:13.148 INFO checking chriserin/artbot against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 07:48:13.148 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +db42d4dad33013eba11ef37342ad9f614e5652b8-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 28 07:48:13.689 INFO [stdout] bb43a08f20cd673d83606e81587e2dd1c9af18c19a0ab880ba64fb1cc7638316
Nov 28 07:48:13.691 INFO running `"docker" "start" "-a" "bb43a08f20cd673d83606e81587e2dd1c9af18c19a0ab880ba64fb1cc7638316"`
Nov 28 07:48:15.036 INFO [stderr] usermod: no changes
Nov 28 07:48:15.200 INFO [stderr]     Checking enum_primitive v0.1.1
Nov 28 07:48:15.200 INFO [stderr]     Checking num-complex v0.1.38
Nov 28 07:48:15.203 INFO [stderr]     Checking idna v0.1.2
Nov 28 07:48:15.203 INFO [stderr]     Checking num-bigint v0.1.39
Nov 28 07:48:15.203 INFO [stderr]     Checking png v0.7.0
Nov 28 07:48:17.905 INFO [stderr]     Checking num-rational v0.1.38
Nov 28 07:48:18.833 INFO [stderr]     Checking image v0.13.0
Nov 28 07:48:18.833 INFO [stderr]     Checking num v0.1.39
Nov 28 07:48:19.320 INFO [stderr]     Checking url v1.5.0
Nov 28 07:48:22.100 INFO [stderr]     Checking hyper v0.10.12
Nov 28 07:48:27.173 INFO [stderr]     Checking iron v0.5.1
Nov 28 07:48:28.448 INFO [stderr]     Checking router v0.5.1
Nov 28 07:48:29.852 INFO [stderr]     Checking artbot v0.1.0 (/source)
Nov 28 07:48:32.368 INFO [stderr] warning: unused import: `std::fs::File`
Nov 28 07:48:32.368 INFO [stderr]   --> src/main.rs:14:5
Nov 28 07:48:32.368 INFO [stderr]    |
Nov 28 07:48:32.368 INFO [stderr] 14 | use std::fs::File;
Nov 28 07:48:32.368 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 28 07:48:32.368 INFO [stderr]    |
Nov 28 07:48:32.369 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 07:48:32.369 INFO [stderr] 
Nov 28 07:48:32.369 INFO [stderr] warning: unused import: `std::path::Path`
Nov 28 07:48:32.369 INFO [stderr]   --> src/main.rs:15:5
Nov 28 07:48:32.369 INFO [stderr]    |
Nov 28 07:48:32.369 INFO [stderr] 15 | use std::path::Path;
Nov 28 07:48:32.369 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 07:48:32.369 INFO [stderr] 
Nov 28 07:48:32.369 INFO [stderr] warning: unused import: `iron::mime`
Nov 28 07:48:32.369 INFO [stderr]    --> src/main.rs:158:13
Nov 28 07:48:32.369 INFO [stderr]     |
Nov 28 07:48:32.369 INFO [stderr] 158 |         use iron::mime;
Nov 28 07:48:32.369 INFO [stderr]     |             ^^^^^^^^^^
Nov 28 07:48:32.369 INFO [stderr] 
Nov 28 07:48:32.369 INFO [stderr] warning: unused import: `iron::mime`
Nov 28 07:48:32.369 INFO [stderr]    --> src/main.rs:170:13
Nov 28 07:48:32.369 INFO [stderr]     |
Nov 28 07:48:32.369 INFO [stderr] 170 |         use iron::mime;
Nov 28 07:48:32.369 INFO [stderr]     |             ^^^^^^^^^^
Nov 28 07:48:32.369 INFO [stderr] 
Nov 28 07:48:32.420 INFO [stderr] warning: unused import: `std::fs::File`
Nov 28 07:48:32.420 INFO [stderr]   --> src/main.rs:14:5
Nov 28 07:48:32.420 INFO [stderr]    |
Nov 28 07:48:32.421 INFO [stderr] 14 | use std::fs::File;
Nov 28 07:48:32.421 INFO [stderr]    |     ^^^^^^^^^^^^^
Nov 28 07:48:32.421 INFO [stderr]    |
Nov 28 07:48:32.421 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 28 07:48:32.421 INFO [stderr] 
Nov 28 07:48:32.421 INFO [stderr] warning: unused import: `std::path::Path`
Nov 28 07:48:32.421 INFO [stderr]   --> src/main.rs:15:5
Nov 28 07:48:32.421 INFO [stderr]    |
Nov 28 07:48:32.421 INFO [stderr] 15 | use std::path::Path;
Nov 28 07:48:32.421 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Nov 28 07:48:32.421 INFO [stderr] 
Nov 28 07:48:32.421 INFO [stderr] warning: unused import: `iron::mime`
Nov 28 07:48:32.428 INFO [stderr]    --> src/main.rs:158:13
Nov 28 07:48:32.428 INFO [stderr]     |
Nov 28 07:48:32.428 INFO [stderr] 158 |         use iron::mime;
Nov 28 07:48:32.428 INFO [stderr]     |             ^^^^^^^^^^
Nov 28 07:48:32.428 INFO [stderr] 
Nov 28 07:48:32.428 INFO [stderr] warning: unused import: `iron::mime`
Nov 28 07:48:32.429 INFO [stderr]    --> src/main.rs:170:13
Nov 28 07:48:32.429 INFO [stderr]     |
Nov 28 07:48:32.429 INFO [stderr] 170 |         use iron::mime;
Nov 28 07:48:32.429 INFO [stderr]     |             ^^^^^^^^^^
Nov 28 07:48:32.429 INFO [stderr] 
Nov 28 07:48:32.613 INFO [stderr] warning: value assigned to `r` is never read
Nov 28 07:48:32.613 INFO [stderr]   --> src/main.rs:64:17
Nov 28 07:48:32.613 INFO [stderr]    |
Nov 28 07:48:32.613 INFO [stderr] 64 |         let mut r = 0;
Nov 28 07:48:32.613 INFO [stderr]    |                 ^
Nov 28 07:48:32.613 INFO [stderr]    |
Nov 28 07:48:32.613 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 07:48:32.613 INFO [stderr] 
Nov 28 07:48:32.614 INFO [stderr] warning: value assigned to `g` is never read
Nov 28 07:48:32.614 INFO [stderr]   --> src/main.rs:65:17
Nov 28 07:48:32.614 INFO [stderr]    |
Nov 28 07:48:32.614 INFO [stderr] 65 |         let mut g = 0;
Nov 28 07:48:32.614 INFO [stderr]    |                 ^
Nov 28 07:48:32.614 INFO [stderr] 
Nov 28 07:48:32.614 INFO [stderr] warning: value assigned to `b` is never read
Nov 28 07:48:32.614 INFO [stderr]   --> src/main.rs:66:17
Nov 28 07:48:32.614 INFO [stderr]    |
Nov 28 07:48:32.614 INFO [stderr] 66 |         let mut b = 0;
Nov 28 07:48:32.614 INFO [stderr]    |                 ^
Nov 28 07:48:32.614 INFO [stderr] 
Nov 28 07:48:32.614 INFO [stderr] warning: unused variable: `req`
Nov 28 07:48:32.615 INFO [stderr]    --> src/main.rs:169:29
Nov 28 07:48:32.615 INFO [stderr]     |
Nov 28 07:48:32.615 INFO [stderr] 169 |     fn random_image_handler(req: &mut Request) -> IronResult<Response> {
Nov 28 07:48:32.615 INFO [stderr]     |                             ^^^ help: consider using `_req` instead
Nov 28 07:48:32.615 INFO [stderr]     |
Nov 28 07:48:32.615 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 07:48:32.615 INFO [stderr] 
Nov 28 07:48:32.645 INFO [stderr] warning: value assigned to `r` is never read
Nov 28 07:48:32.645 INFO [stderr]   --> src/main.rs:64:17
Nov 28 07:48:32.645 INFO [stderr]    |
Nov 28 07:48:32.645 INFO [stderr] 64 |         let mut r = 0;
Nov 28 07:48:32.646 INFO [stderr]    |                 ^
Nov 28 07:48:32.646 INFO [stderr]    |
Nov 28 07:48:32.646 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Nov 28 07:48:32.646 INFO [stderr] 
Nov 28 07:48:32.646 INFO [stderr] warning: value assigned to `g` is never read
Nov 28 07:48:32.646 INFO [stderr]   --> src/main.rs:65:17
Nov 28 07:48:32.646 INFO [stderr]    |
Nov 28 07:48:32.646 INFO [stderr] 65 |         let mut g = 0;
Nov 28 07:48:32.646 INFO [stderr]    |                 ^
Nov 28 07:48:32.646 INFO [stderr] 
Nov 28 07:48:32.646 INFO [stderr] warning: value assigned to `b` is never read
Nov 28 07:48:32.646 INFO [stderr]   --> src/main.rs:66:17
Nov 28 07:48:32.646 INFO [stderr]    |
Nov 28 07:48:32.646 INFO [stderr] 66 |         let mut b = 0;
Nov 28 07:48:32.646 INFO [stderr]    |                 ^
Nov 28 07:48:32.646 INFO [stderr] 
Nov 28 07:48:32.646 INFO [stderr] warning: unused variable: `req`
Nov 28 07:48:32.646 INFO [stderr]    --> src/main.rs:169:29
Nov 28 07:48:32.646 INFO [stderr]     |
Nov 28 07:48:32.646 INFO [stderr] 169 |     fn random_image_handler(req: &mut Request) -> IronResult<Response> {
Nov 28 07:48:32.646 INFO [stderr]     |                             ^^^ help: consider using `_req` instead
Nov 28 07:48:32.652 INFO [stderr]     |
Nov 28 07:48:32.652 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 28 07:48:32.652 INFO [stderr] 
Nov 28 07:48:32.653 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:48:32.653 INFO [stderr]   --> src/main.rs:41:9
Nov 28 07:48:32.653 INFO [stderr]    |
Nov 28 07:48:32.653 INFO [stderr] 41 |     let mut x_adjust = xor_rand.gen_range(0.4, 256.0);
Nov 28 07:48:32.653 INFO [stderr]    |         ----^^^^^^^^
Nov 28 07:48:32.653 INFO [stderr]    |         |
Nov 28 07:48:32.653 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:48:32.653 INFO [stderr]    |
Nov 28 07:48:32.653 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 07:48:32.653 INFO [stderr] 
Nov 28 07:48:32.653 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:48:32.653 INFO [stderr]   --> src/main.rs:42:9
Nov 28 07:48:32.653 INFO [stderr]    |
Nov 28 07:48:32.653 INFO [stderr] 42 |     let mut y_adjust = xor_rand.gen_range(0.4, 256.0);
Nov 28 07:48:32.653 INFO [stderr]    |         ----^^^^^^^^
Nov 28 07:48:32.653 INFO [stderr]    |         |
Nov 28 07:48:32.653 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:48:32.653 INFO [stderr] 
Nov 28 07:48:32.653 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:48:32.653 INFO [stderr]   --> src/main.rs:43:9
Nov 28 07:48:32.653 INFO [stderr]    |
Nov 28 07:48:32.653 INFO [stderr] 43 |     let mut color_adjust = xor_rand.gen_range(10.0, 256.0);
Nov 28 07:48:32.653 INFO [stderr]    |         ----^^^^^^^^^^^^
Nov 28 07:48:32.653 INFO [stderr]    |         |
Nov 28 07:48:32.654 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:48:32.654 INFO [stderr] 
Nov 28 07:48:32.654 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:48:32.654 INFO [stderr]   --> src/main.rs:45:9
Nov 28 07:48:32.654 INFO [stderr]    |
Nov 28 07:48:32.654 INFO [stderr] 45 |     let mut julia_adjustor_x = xor_rand.gen_range(-0.6, 0.6);
Nov 28 07:48:32.654 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^
Nov 28 07:48:32.654 INFO [stderr]    |         |
Nov 28 07:48:32.654 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:48:32.654 INFO [stderr] 
Nov 28 07:48:32.658 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 07:48:32.658 INFO [stderr]    --> src/main.rs:165:9
Nov 28 07:48:32.659 INFO [stderr]     |
Nov 28 07:48:32.659 INFO [stderr] 165 |         image_rgb.save(&mut bytes, image::PNG);
Nov 28 07:48:32.659 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 07:48:32.659 INFO [stderr]     |
Nov 28 07:48:32.659 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 07:48:32.659 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 07:48:32.659 INFO [stderr] 
Nov 28 07:48:32.659 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 07:48:32.659 INFO [stderr]    --> src/main.rs:178:9
Nov 28 07:48:32.659 INFO [stderr]     |
Nov 28 07:48:32.659 INFO [stderr] 178 |         image_rgb.save(&mut bytes, image::PNG);
Nov 28 07:48:32.659 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 07:48:32.659 INFO [stderr]     |
Nov 28 07:48:32.659 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 07:48:32.659 INFO [stderr] 
Nov 28 07:48:32.664 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:48:32.665 INFO [stderr]   --> src/main.rs:41:9
Nov 28 07:48:32.665 INFO [stderr]    |
Nov 28 07:48:32.666 INFO [stderr] 41 |     let mut x_adjust = xor_rand.gen_range(0.4, 256.0);
Nov 28 07:48:32.666 INFO [stderr]    |         ----^^^^^^^^
Nov 28 07:48:32.666 INFO [stderr]    |         |
Nov 28 07:48:32.666 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:48:32.666 INFO [stderr]    |
Nov 28 07:48:32.666 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 28 07:48:32.666 INFO [stderr] 
Nov 28 07:48:32.666 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:48:32.666 INFO [stderr]   --> src/main.rs:42:9
Nov 28 07:48:32.666 INFO [stderr]    |
Nov 28 07:48:32.666 INFO [stderr] 42 |     let mut y_adjust = xor_rand.gen_range(0.4, 256.0);
Nov 28 07:48:32.667 INFO [stderr]    |         ----^^^^^^^^
Nov 28 07:48:32.667 INFO [stderr]    |         |
Nov 28 07:48:32.667 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:48:32.667 INFO [stderr] 
Nov 28 07:48:32.667 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:48:32.667 INFO [stderr]   --> src/main.rs:43:9
Nov 28 07:48:32.667 INFO [stderr]    |
Nov 28 07:48:32.667 INFO [stderr] 43 |     let mut color_adjust = xor_rand.gen_range(10.0, 256.0);
Nov 28 07:48:32.667 INFO [stderr]    |         ----^^^^^^^^^^^^
Nov 28 07:48:32.667 INFO [stderr]    |         |
Nov 28 07:48:32.667 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:48:32.667 INFO [stderr] 
Nov 28 07:48:32.667 INFO [stderr] warning: variable does not need to be mutable
Nov 28 07:48:32.667 INFO [stderr]   --> src/main.rs:45:9
Nov 28 07:48:32.667 INFO [stderr]    |
Nov 28 07:48:32.667 INFO [stderr] 45 |     let mut julia_adjustor_x = xor_rand.gen_range(-0.6, 0.6);
Nov 28 07:48:32.667 INFO [stderr]    |         ----^^^^^^^^^^^^^^^^
Nov 28 07:48:32.667 INFO [stderr]    |         |
Nov 28 07:48:32.667 INFO [stderr]    |         help: remove this `mut`
Nov 28 07:48:32.667 INFO [stderr] 
Nov 28 07:48:32.673 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 07:48:32.673 INFO [stderr]    --> src/main.rs:165:9
Nov 28 07:48:32.673 INFO [stderr]     |
Nov 28 07:48:32.673 INFO [stderr] 165 |         image_rgb.save(&mut bytes, image::PNG);
Nov 28 07:48:32.673 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 07:48:32.673 INFO [stderr]     |
Nov 28 07:48:32.673 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 28 07:48:32.673 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 07:48:32.673 INFO [stderr] 
Nov 28 07:48:32.673 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 07:48:32.673 INFO [stderr]    --> src/main.rs:178:9
Nov 28 07:48:32.673 INFO [stderr]     |
Nov 28 07:48:32.673 INFO [stderr] 178 |         image_rgb.save(&mut bytes, image::PNG);
Nov 28 07:48:32.673 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 07:48:32.673 INFO [stderr]     |
Nov 28 07:48:32.673 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 07:48:32.673 INFO [stderr] 
Nov 28 07:48:32.742 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.68s
Nov 28 07:48:32.754 INFO [stderr] su: No module specific data is present
Nov 28 07:48:33.532 INFO running `"docker" "inspect" "bb43a08f20cd673d83606e81587e2dd1c9af18c19a0ab880ba64fb1cc7638316"`
Nov 28 07:48:33.888 INFO running `"docker" "rm" "-f" "bb43a08f20cd673d83606e81587e2dd1c9af18c19a0ab880ba64fb1cc7638316"`
Nov 28 07:48:34.232 INFO [stdout] bb43a08f20cd673d83606e81587e2dd1c9af18c19a0ab880ba64fb1cc7638316