Oct 31 21:48:32.819 INFO checking samfoo/trees against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 21:48:32.820 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-5/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 31 21:48:33.320 INFO blam! 34714bcd4127eaa774387c84cba5a1e722f374bcc11c74e455eece053c9a434c
Oct 31 21:48:33.322 INFO running `"docker" "start" "-a" "34714bcd4127eaa774387c84cba5a1e722f374bcc11c74e455eece053c9a434c"`
Oct 31 21:48:34.430 INFO kablam! usermod: no changes
Oct 31 21:48:34.646 INFO kablam!    Compiling matrixmultiply v0.1.13
Oct 31 21:48:34.646 INFO kablam!    Compiling ndarray v0.9.1
Oct 31 21:48:34.646 INFO kablam!    Compiling cairo-rs v0.1.3
Oct 31 21:48:34.648 INFO kablam!    Compiling glib-sys v0.3.4
Oct 31 21:48:34.648 INFO kablam!    Compiling gobject-sys v0.3.4
Oct 31 21:48:34.648 INFO kablam!    Compiling cairo-sys-rs v0.3.4
Oct 31 21:48:34.648 INFO kablam!     Checking itertools v0.6.0
Oct 31 21:48:34.648 INFO kablam!     Checking num-complex v0.1.38
Oct 31 21:48:44.750 INFO kablam!     Checking glib v0.1.3
Oct 31 21:48:51.178 INFO kablam!     Checking ndarray-rand v0.5.0
Oct 31 21:48:51.620 INFO kablam!     Checking trees v0.1.0 (/source)
Oct 31 21:48:52.081 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 31 21:48:52.081 INFO kablam!   --> src/main.rs:10:5
Oct 31 21:48:52.081 INFO kablam!    |
Oct 31 21:48:52.081 INFO kablam! 10 | use std::io::prelude::*;
Oct 31 21:48:52.081 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Oct 31 21:48:52.082 INFO kablam!    |
Oct 31 21:48:52.082 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 31 21:48:52.082 INFO kablam! 
Oct 31 21:48:52.222 INFO kablam! warning: unused variable: `ra`
Oct 31 21:48:52.222 INFO kablam!   --> src/tree.rs:97:25
Oct 31 21:48:52.222 INFO kablam!    |
Oct 31 21:48:52.222 INFO kablam! 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Oct 31 21:48:52.222 INFO kablam!    |                         ^^ help: consider using `_ra` instead
Oct 31 21:48:52.222 INFO kablam!    |
Oct 31 21:48:52.222 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 31 21:48:52.222 INFO kablam! 
Oct 31 21:48:52.239 INFO kablam! warning: variable does not need to be mutable
Oct 31 21:48:52.239 INFO kablam!    --> src/main.rs:138:9
Oct 31 21:48:52.239 INFO kablam!     |
Oct 31 21:48:52.239 INFO kablam! 138 |     let mut output = File::create(output()).unwrap();
Oct 31 21:48:52.239 INFO kablam!     |         ----^^^^^^
Oct 31 21:48:52.239 INFO kablam!     |         |
Oct 31 21:48:52.239 INFO kablam!     |         help: remove this `mut`
Oct 31 21:48:52.239 INFO kablam!     |
Oct 31 21:48:52.239 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 31 21:48:52.239 INFO kablam! 
Oct 31 21:48:52.246 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 21:48:52.246 INFO kablam!    --> src/main.rs:141:5
Oct 31 21:48:52.246 INFO kablam!     |
Oct 31 21:48:52.246 INFO kablam! 141 |     surface.write_to_png(&mut f);
Oct 31 21:48:52.246 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 21:48:52.246 INFO kablam!     |
Oct 31 21:48:52.246 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 31 21:48:52.246 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 21:48:52.246 INFO kablam! 
Oct 31 21:48:52.384 INFO kablam! warning: unused import: `std::io::prelude::*`
Oct 31 21:48:52.384 INFO kablam!   --> src/main.rs:10:5
Oct 31 21:48:52.384 INFO kablam!    |
Oct 31 21:48:52.384 INFO kablam! 10 | use std::io::prelude::*;
Oct 31 21:48:52.384 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^
Oct 31 21:48:52.384 INFO kablam!    |
Oct 31 21:48:52.384 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 31 21:48:52.384 INFO kablam! 
Oct 31 21:48:52.492 INFO kablam! warning: unused variable: `ra`
Oct 31 21:48:52.492 INFO kablam!   --> src/tree.rs:97:25
Oct 31 21:48:52.492 INFO kablam!    |
Oct 31 21:48:52.492 INFO kablam! 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Oct 31 21:48:52.492 INFO kablam!    |                         ^^ help: consider using `_ra` instead
Oct 31 21:48:52.492 INFO kablam!    |
Oct 31 21:48:52.492 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 31 21:48:52.492 INFO kablam! 
Oct 31 21:48:52.504 INFO kablam! warning: variable does not need to be mutable
Oct 31 21:48:52.504 INFO kablam!    --> src/main.rs:138:9
Oct 31 21:48:52.505 INFO kablam!     |
Oct 31 21:48:52.505 INFO kablam! 138 |     let mut output = File::create(output()).unwrap();
Oct 31 21:48:52.505 INFO kablam!     |         ----^^^^^^
Oct 31 21:48:52.505 INFO kablam!     |         |
Oct 31 21:48:52.506 INFO kablam!     |         help: remove this `mut`
Oct 31 21:48:52.506 INFO kablam!     |
Oct 31 21:48:52.506 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 31 21:48:52.507 INFO kablam! 
Oct 31 21:48:52.511 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 31 21:48:52.511 INFO kablam!    --> src/main.rs:141:5
Oct 31 21:48:52.512 INFO kablam!     |
Oct 31 21:48:52.512 INFO kablam! 141 |     surface.write_to_png(&mut f);
Oct 31 21:48:52.512 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 21:48:52.513 INFO kablam!     |
Oct 31 21:48:52.513 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 31 21:48:52.513 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 31 21:48:52.514 INFO kablam! 
Oct 31 21:48:52.543 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 18.08s
Oct 31 21:48:52.547 INFO kablam! su: No module specific data is present
Oct 31 21:48:53.401 INFO running `"docker" "rm" "-f" "34714bcd4127eaa774387c84cba5a1e722f374bcc11c74e455eece053c9a434c"`
Oct 31 21:48:53.656 INFO blam! 34714bcd4127eaa774387c84cba5a1e722f374bcc11c74e455eece053c9a434c