Nov 29 18:56:28.309 INFO checking samfoo/trees against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 18:56:28.309 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-7/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 18:56:28.708 INFO [stdout] 43f273b34895efa5f4e115b2e9bf31a3b1c08e67f5dca842472f6c425f68ebeb
Nov 29 18:56:28.720 INFO running `"docker" "start" "-a" "43f273b34895efa5f4e115b2e9bf31a3b1c08e67f5dca842472f6c425f68ebeb"`
Nov 29 18:56:30.456 INFO [stderr] usermod: no changes
Nov 29 18:56:30.546 INFO [stderr]    Compiling matrixmultiply v0.1.13
Nov 29 18:56:30.546 INFO [stderr]    Compiling cairo-rs v0.1.3
Nov 29 18:56:30.546 INFO [stderr]     Checking bitflags v0.5.0
Nov 29 18:56:30.546 INFO [stderr]    Compiling glib-sys v0.3.4
Nov 29 18:56:30.546 INFO [stderr]    Compiling gobject-sys v0.3.4
Nov 29 18:56:30.546 INFO [stderr]    Compiling cairo-sys-rs v0.3.4
Nov 29 18:56:30.546 INFO [stderr]     Checking itertools v0.6.0
Nov 29 18:56:30.546 INFO [stderr]     Checking num-complex v0.1.38
Nov 29 18:56:35.136 INFO [stderr]     Checking ndarray v0.9.1
Nov 29 18:56:37.770 INFO [stderr]     Checking glib v0.1.3
Nov 29 18:56:44.578 INFO [stderr]     Checking ndarray-rand v0.5.0
Nov 29 18:56:45.100 INFO [stderr]     Checking trees v0.1.0 (/source)
Nov 29 18:56:46.040 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 29 18:56:46.040 INFO [stderr]   --> src/main.rs:10:5
Nov 29 18:56:46.040 INFO [stderr]    |
Nov 29 18:56:46.040 INFO [stderr] 10 | use std::io::prelude::*;
Nov 29 18:56:46.040 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 29 18:56:46.040 INFO [stderr]    |
Nov 29 18:56:46.040 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 29 18:56:46.040 INFO [stderr] 
Nov 29 18:56:46.264 INFO [stderr] warning: unused variable: `ra`
Nov 29 18:56:46.264 INFO [stderr]   --> src/tree.rs:97:25
Nov 29 18:56:46.264 INFO [stderr]    |
Nov 29 18:56:46.264 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Nov 29 18:56:46.264 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Nov 29 18:56:46.264 INFO [stderr]    |
Nov 29 18:56:46.264 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 18:56:46.264 INFO [stderr] 
Nov 29 18:56:46.273 INFO [stderr] warning: unused import: `std::io::prelude::*`
Nov 29 18:56:46.273 INFO [stderr]   --> src/main.rs:10:5
Nov 29 18:56:46.273 INFO [stderr]    |
Nov 29 18:56:46.273 INFO [stderr] 10 | use std::io::prelude::*;
Nov 29 18:56:46.273 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 29 18:56:46.273 INFO [stderr]    |
Nov 29 18:56:46.273 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 29 18:56:46.273 INFO [stderr] 
Nov 29 18:56:46.296 INFO [stderr] warning: variable does not need to be mutable
Nov 29 18:56:46.296 INFO [stderr]    --> src/main.rs:138:9
Nov 29 18:56:46.297 INFO [stderr]     |
Nov 29 18:56:46.297 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Nov 29 18:56:46.297 INFO [stderr]     |         ----^^^^^^
Nov 29 18:56:46.297 INFO [stderr]     |         |
Nov 29 18:56:46.297 INFO [stderr]     |         help: remove this `mut`
Nov 29 18:56:46.297 INFO [stderr]     |
Nov 29 18:56:46.297 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 29 18:56:46.297 INFO [stderr] 
Nov 29 18:56:46.321 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 18:56:46.321 INFO [stderr]    --> src/main.rs:141:5
Nov 29 18:56:46.321 INFO [stderr]     |
Nov 29 18:56:46.321 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Nov 29 18:56:46.321 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 18:56:46.321 INFO [stderr]     |
Nov 29 18:56:46.321 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 29 18:56:46.321 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 18:56:46.321 INFO [stderr] 
Nov 29 18:56:46.479 INFO [stderr] warning: unused variable: `ra`
Nov 29 18:56:46.479 INFO [stderr]   --> src/tree.rs:97:25
Nov 29 18:56:46.479 INFO [stderr]    |
Nov 29 18:56:46.479 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Nov 29 18:56:46.479 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Nov 29 18:56:46.479 INFO [stderr]    |
Nov 29 18:56:46.479 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 18:56:46.479 INFO [stderr] 
Nov 29 18:56:46.502 INFO [stderr] warning: variable does not need to be mutable
Nov 29 18:56:46.502 INFO [stderr]    --> src/main.rs:138:9
Nov 29 18:56:46.502 INFO [stderr]     |
Nov 29 18:56:46.502 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Nov 29 18:56:46.503 INFO [stderr]     |         ----^^^^^^
Nov 29 18:56:46.503 INFO [stderr]     |         |
Nov 29 18:56:46.503 INFO [stderr]     |         help: remove this `mut`
Nov 29 18:56:46.503 INFO [stderr]     |
Nov 29 18:56:46.503 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 29 18:56:46.503 INFO [stderr] 
Nov 29 18:56:46.508 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 18:56:46.509 INFO [stderr]    --> src/main.rs:141:5
Nov 29 18:56:46.509 INFO [stderr]     |
Nov 29 18:56:46.509 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Nov 29 18:56:46.509 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 18:56:46.510 INFO [stderr]     |
Nov 29 18:56:46.510 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 29 18:56:46.510 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 18:56:46.510 INFO [stderr] 
Nov 29 18:56:46.544 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.06s
Nov 29 18:56:46.548 INFO [stderr] su: No module specific data is present
Nov 29 18:56:47.294 INFO running `"docker" "inspect" "43f273b34895efa5f4e115b2e9bf31a3b1c08e67f5dca842472f6c425f68ebeb"`
Nov 29 18:56:47.600 INFO running `"docker" "rm" "-f" "43f273b34895efa5f4e115b2e9bf31a3b1c08e67f5dca842472f6c425f68ebeb"`
Nov 29 18:56:47.848 INFO [stdout] 43f273b34895efa5f4e115b2e9bf31a3b1c08e67f5dca842472f6c425f68ebeb