Oct 26 21:34:14.269 INFO checking samfoo/trees against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 26 21:34:14.270 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-1/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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"`
Oct 26 21:34:14.908 INFO blam! 28d88e78c749ab539c89057edca78ce413f403ee8d0a4c7395490a87f192cffb
Oct 26 21:34:14.911 INFO running `"docker" "start" "-a" "28d88e78c749ab539c89057edca78ce413f403ee8d0a4c7395490a87f192cffb"`
Oct 26 21:34:16.755 INFO kablam! usermod: no changes
Oct 26 21:34:16.879 INFO kablam!    Compiling matrixmultiply v0.1.13
Oct 26 21:34:16.879 INFO kablam!    Compiling ndarray v0.9.1
Oct 26 21:34:16.879 INFO kablam!     Checking either v1.1.0
Oct 26 21:34:16.883 INFO kablam!    Compiling cairo-rs v0.1.3
Oct 26 21:34:16.883 INFO kablam!    Compiling glib-sys v0.3.4
Oct 26 21:34:16.883 INFO kablam!    Compiling gobject-sys v0.3.4
Oct 26 21:34:16.883 INFO kablam!    Compiling cairo-sys-rs v0.3.4
Oct 26 21:34:16.883 INFO kablam!     Checking num-complex v0.1.38
Oct 26 21:34:18.159 INFO kablam!     Checking itertools v0.6.0
Oct 26 21:34:26.497 INFO kablam!     Checking glib v0.1.3
Oct 26 21:34:34.019 INFO kablam!     Checking ndarray-rand v0.5.0
Oct 26 21:34:34.508 INFO kablam!     Checking trees v0.1.0 (/source)
Oct 26 21:34:35.107 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 26 21:34:35.107 INFO kablam!   --> src/main.rs:10:5
Oct 26 21:34:35.107 INFO kablam!    |
Oct 26 21:34:35.107 INFO kablam! 10 | use std::io::prelude::*;
Oct 26 21:34:35.107 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Oct 26 21:34:35.107 INFO kablam!    |
Oct 26 21:34:35.107 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 26 21:34:35.107 INFO kablam! 
Oct 26 21:34:35.231 INFO kablam! warning: unused variable: `ra`
Oct 26 21:34:35.231 INFO kablam!   --> src/tree.rs:97:25
Oct 26 21:34:35.231 INFO kablam!    |
Oct 26 21:34:35.231 INFO kablam! 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Oct 26 21:34:35.231 INFO kablam!    |                         ^^ help: consider using `_ra` instead
Oct 26 21:34:35.231 INFO kablam!    |
Oct 26 21:34:35.231 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 26 21:34:35.231 INFO kablam! 
Oct 26 21:34:35.239 INFO kablam! warning: variable does not need to be mutable
Oct 26 21:34:35.239 INFO kablam!    --> src/main.rs:138:9
Oct 26 21:34:35.239 INFO kablam!     |
Oct 26 21:34:35.239 INFO kablam! 138 |     let mut output = File::create(output()).unwrap();
Oct 26 21:34:35.239 INFO kablam!     |         ----^^^^^^
Oct 26 21:34:35.239 INFO kablam!     |         |
Oct 26 21:34:35.239 INFO kablam!     |         help: remove this `mut`
Oct 26 21:34:35.239 INFO kablam!     |
Oct 26 21:34:35.239 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 26 21:34:35.239 INFO kablam! 
Oct 26 21:34:35.242 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 21:34:35.242 INFO kablam!    --> src/main.rs:141:5
Oct 26 21:34:35.242 INFO kablam!     |
Oct 26 21:34:35.242 INFO kablam! 141 |     surface.write_to_png(&mut f);
Oct 26 21:34:35.242 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 21:34:35.242 INFO kablam!     |
Oct 26 21:34:35.242 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 26 21:34:35.242 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 21:34:35.242 INFO kablam! 
Oct 26 21:34:35.439 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 26 21:34:35.439 INFO kablam!   --> src/main.rs:10:5
Oct 26 21:34:35.439 INFO kablam!    |
Oct 26 21:34:35.439 INFO kablam! 10 | use std::io::prelude::*;
Oct 26 21:34:35.439 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Oct 26 21:34:35.439 INFO kablam!    |
Oct 26 21:34:35.439 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 26 21:34:35.439 INFO kablam! 
Oct 26 21:34:35.579 INFO kablam! warning: unused variable: `ra`
Oct 26 21:34:35.579 INFO kablam!   --> src/tree.rs:97:25
Oct 26 21:34:35.579 INFO kablam!    |
Oct 26 21:34:35.579 INFO kablam! 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Oct 26 21:34:35.579 INFO kablam!    |                         ^^ help: consider using `_ra` instead
Oct 26 21:34:35.579 INFO kablam!    |
Oct 26 21:34:35.579 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 26 21:34:35.579 INFO kablam! 
Oct 26 21:34:35.595 INFO kablam! warning: variable does not need to be mutable
Oct 26 21:34:35.595 INFO kablam!    --> src/main.rs:138:9
Oct 26 21:34:35.595 INFO kablam!     |
Oct 26 21:34:35.595 INFO kablam! 138 |     let mut output = File::create(output()).unwrap();
Oct 26 21:34:35.595 INFO kablam!     |         ----^^^^^^
Oct 26 21:34:35.595 INFO kablam!     |         |
Oct 26 21:34:35.595 INFO kablam!     |         help: remove this `mut`
Oct 26 21:34:35.595 INFO kablam!     |
Oct 26 21:34:35.595 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 26 21:34:35.595 INFO kablam! 
Oct 26 21:34:35.607 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 26 21:34:35.607 INFO kablam!    --> src/main.rs:141:5
Oct 26 21:34:35.607 INFO kablam!     |
Oct 26 21:34:35.607 INFO kablam! 141 |     surface.write_to_png(&mut f);
Oct 26 21:34:35.607 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 26 21:34:35.607 INFO kablam!     |
Oct 26 21:34:35.607 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 26 21:34:35.607 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 26 21:34:35.607 INFO kablam! 
Oct 26 21:34:35.622 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 18.84s
Oct 26 21:34:35.631 INFO kablam! su: No module specific data is present
Oct 26 21:34:36.621 INFO running `"docker" "rm" "-f" "28d88e78c749ab539c89057edca78ce413f403ee8d0a4c7395490a87f192cffb"`
Oct 26 21:34:36.886 INFO blam! 28d88e78c749ab539c89057edca78ce413f403ee8d0a4c7395490a87f192cffb