[INFO] crate matplotrust 0.1.6 is already in cache
[INFO] extracting crate matplotrust 0.1.6 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/matplotrust/0.1.6
[INFO] extracting crate matplotrust 0.1.6 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/matplotrust/0.1.6
[INFO] validating manifest of matplotrust-0.1.6 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of matplotrust-0.1.6 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing matplotrust-0.1.6
[INFO] finished frobbing matplotrust-0.1.6
[INFO] frobbed toml for matplotrust-0.1.6 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/matplotrust/0.1.6/Cargo.toml
[INFO] started frobbing matplotrust-0.1.6
[INFO] finished frobbing matplotrust-0.1.6
[INFO] frobbed toml for matplotrust-0.1.6 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/matplotrust/0.1.6/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking matplotrust-0.1.6 against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-4/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/matplotrust/0.1.6:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8e2bbbd7b56244c265cb8eeb813e17422acca88b6d42f8d87977f19007f984da
[INFO] running `"docker" "start" "-a" "8e2bbbd7b56244c265cb8eeb813e17422acca88b6d42f8d87977f19007f984da"`
[INFO] [stderr]     Checking probability v0.15.12
[INFO] [stderr]     Checking matplotrust v0.1.6 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stderr]   --> src/lib.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stderr]    |                            ^^^^  ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `image::GenericImage`
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use image::GenericImage;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `image::Pixels`
[INFO] [stderr]   --> src/lib.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use image::Pixels;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `image::Pixel`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use image::Pixel;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `base64::encode`
[INFO] [stderr]   --> src/lib.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use base64::encode;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Triangle_Down` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     Triangle_Down,
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TriangleDown`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Triangle_Up` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Triangle_Up,
[INFO] [stderr]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `TriangleUp`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Triangle_Left` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Triangle_Left,
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TriangleLeft`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Triangle_Right` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Triangle_Right,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TriangleRight`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Tri_Down` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Tri_Down,
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to upper camel case: `TriDown`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Tri_Up` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Tri_Up,
[INFO] [stderr]    |     ^^^^^^ help: convert the identifier to upper camel case: `TriUp`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Tri_Left` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Tri_Left,
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to upper camel case: `TriLeft`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Tri_Right` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Tri_Right,
[INFO] [stderr]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `TriRight`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Thin_Diamond` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     Thin_Diamond,
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ThinDiamond`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         let mut tmpfile: NamedTempFile = tempfile::NamedTempFile::new().unwrap();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]    --> src/lib.rs:440:1
[INFO] [stderr]     |
[INFO] [stderr] 440 | fn main() {
[INFO] [stderr]     | ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         tmpfile.write_all(self.script.as_bytes());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `lineStyle` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub lineStyle: Option<LineStyle>,
[INFO] [stderr]     |         ^^^^^^^^^ help: convert the identifier to snake case: `line_style`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         fmt.write_str(&options.join(", "));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:214:9
[INFO] [stderr]     |
[INFO] [stderr] 214 |         fmt.write_str(&options.join(", "));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stderr]   --> src/lib.rs:14:28
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::io::{Write, Read, Seek, SeekFrom};
[INFO] [stderr]    |                            ^^^^  ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `image::GenericImage`
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use image::GenericImage;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `image::Pixels`
[INFO] [stderr]   --> src/lib.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use image::Pixels;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `image::Pixel`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use image::Pixel;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `base64::encode`
[INFO] [stderr]   --> src/lib.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use base64::encode;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Triangle_Down` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     Triangle_Down,
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TriangleDown`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Triangle_Up` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     Triangle_Up,
[INFO] [stderr]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `TriangleUp`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Triangle_Left` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     Triangle_Left,
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TriangleLeft`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Triangle_Right` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     Triangle_Right,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `TriangleRight`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Tri_Down` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Tri_Down,
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to upper camel case: `TriDown`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Tri_Up` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Tri_Up,
[INFO] [stderr]    |     ^^^^^^ help: convert the identifier to upper camel case: `TriUp`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Tri_Left` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Tri_Left,
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to upper camel case: `TriLeft`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Tri_Right` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Tri_Right,
[INFO] [stderr]    |     ^^^^^^^^^ help: convert the identifier to upper camel case: `TriRight`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Thin_Diamond` should have an upper camel case name
[INFO] [stderr]   --> src/lib.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     Thin_Diamond,
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ThinDiamond`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         let mut tmpfile: NamedTempFile = tempfile::NamedTempFile::new().unwrap();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:360:13
[INFO] [stderr]     |
[INFO] [stderr] 360 |         let mut sampler = Independent(&gaussian, &mut source);
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:372:13
[INFO] [stderr]     |
[INFO] [stderr] 372 |         let mut sampler = Independent(&gaussian, &mut source);
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:384:13
[INFO] [stderr]     |
[INFO] [stderr] 384 |         let mut sampler = Independent(&gaussian, &mut source);
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:404:13
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let mut sampler = Independent(&gaussian, &mut source);
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:422:13
[INFO] [stderr]     |
[INFO] [stderr] 422 |         let mut sampler = Independent(&gaussian, &mut source);
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |         tmpfile.write_all(self.script.as_bytes());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `lineStyle` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub lineStyle: Option<LineStyle>,
[INFO] [stderr]     |         ^^^^^^^^^ help: convert the identifier to snake case: `line_style`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:198:9
[INFO] [stderr]     |
[INFO] [stderr] 198 |         fmt.write_str(&options.join(", "));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/lib.rs:214:9
[INFO] [stderr]     |
[INFO] [stderr] 214 |         fmt.write_str(&options.join(", "));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `"docker" "inspect" "8e2bbbd7b56244c265cb8eeb813e17422acca88b6d42f8d87977f19007f984da"`
[INFO] running `"docker" "rm" "-f" "8e2bbbd7b56244c265cb8eeb813e17422acca88b6d42f8d87977f19007f984da"`
[INFO] [stdout] 8e2bbbd7b56244c265cb8eeb813e17422acca88b6d42f8d87977f19007f984da