Dec 11 10:12:57.002 INFO checking samfoo/trees against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 10:12:57.002 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 10:12:57.446 INFO [stdout] 06884631af81cc5c4e87d3cff4b7a6403dc307d44cf13ac283909f44d4622a6a
Dec 11 10:12:57.450 INFO running `"docker" "start" "-a" "06884631af81cc5c4e87d3cff4b7a6403dc307d44cf13ac283909f44d4622a6a"`
Dec 11 10:12:58.828 INFO [stderr] usermod: no changes
Dec 11 10:12:58.948 INFO [stderr]    Compiling matrixmultiply v0.1.13
Dec 11 10:12:58.956 INFO [stderr]    Compiling ndarray v0.9.1
Dec 11 10:12:58.956 INFO [stderr]    Compiling cairo-rs v0.1.3
Dec 11 10:12:58.958 INFO [stderr]    Compiling cairo-sys-rs v0.3.4
Dec 11 10:12:58.964 INFO [stderr]     Checking itertools v0.6.0
Dec 11 10:12:58.964 INFO [stderr]     Checking num-complex v0.1.38
Dec 11 10:12:58.964 INFO [stderr]     Checking glib-sys v0.3.4
Dec 11 10:13:03.262 INFO [stderr]     Checking gobject-sys v0.3.4
Dec 11 10:13:04.504 INFO [stderr]     Checking glib v0.1.3
Dec 11 10:13:11.228 INFO [stderr]     Checking ndarray-rand v0.5.0
Dec 11 10:13:11.768 INFO [stderr]     Checking trees v0.1.0 (/source)
Dec 11 10:13:12.649 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 11 10:13:12.649 INFO [stderr]   --> src/main.rs:10:5
Dec 11 10:13:12.649 INFO [stderr]    |
Dec 11 10:13:12.649 INFO [stderr] 10 | use std::io::prelude::*;
Dec 11 10:13:12.649 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 10:13:12.668 INFO [stderr]    |
Dec 11 10:13:12.668 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 10:13:12.668 INFO [stderr] 
Dec 11 10:13:12.692 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 11 10:13:12.692 INFO [stderr]   --> src/main.rs:10:5
Dec 11 10:13:12.692 INFO [stderr]    |
Dec 11 10:13:12.692 INFO [stderr] 10 | use std::io::prelude::*;
Dec 11 10:13:12.692 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 10:13:12.692 INFO [stderr]    |
Dec 11 10:13:12.692 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 10:13:12.692 INFO [stderr] 
Dec 11 10:13:12.757 INFO [stderr] warning: unused variable: `ra`
Dec 11 10:13:12.757 INFO [stderr]   --> src/tree.rs:97:25
Dec 11 10:13:12.757 INFO [stderr]    |
Dec 11 10:13:12.757 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Dec 11 10:13:12.757 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Dec 11 10:13:12.757 INFO [stderr]    |
Dec 11 10:13:12.757 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 10:13:12.757 INFO [stderr] 
Dec 11 10:13:12.772 INFO [stderr] warning: variable does not need to be mutable
Dec 11 10:13:12.772 INFO [stderr]    --> src/main.rs:138:9
Dec 11 10:13:12.772 INFO [stderr]     |
Dec 11 10:13:12.772 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Dec 11 10:13:12.772 INFO [stderr]     |         ----^^^^^^
Dec 11 10:13:12.772 INFO [stderr]     |         |
Dec 11 10:13:12.772 INFO [stderr]     |         help: remove this `mut`
Dec 11 10:13:12.772 INFO [stderr]     |
Dec 11 10:13:12.772 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 10:13:12.772 INFO [stderr] 
Dec 11 10:13:12.780 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:13:12.780 INFO [stderr]    --> src/main.rs:141:5
Dec 11 10:13:12.780 INFO [stderr]     |
Dec 11 10:13:12.780 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Dec 11 10:13:12.780 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:13:12.780 INFO [stderr]     |
Dec 11 10:13:12.780 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 10:13:12.780 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:13:12.780 INFO [stderr] 
Dec 11 10:13:12.835 INFO [stderr] warning: unused variable: `ra`
Dec 11 10:13:12.835 INFO [stderr]   --> src/tree.rs:97:25
Dec 11 10:13:12.835 INFO [stderr]    |
Dec 11 10:13:12.836 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Dec 11 10:13:12.836 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Dec 11 10:13:12.836 INFO [stderr]    |
Dec 11 10:13:12.836 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 10:13:12.836 INFO [stderr] 
Dec 11 10:13:12.847 INFO [stderr] warning: variable does not need to be mutable
Dec 11 10:13:12.847 INFO [stderr]    --> src/main.rs:138:9
Dec 11 10:13:12.848 INFO [stderr]     |
Dec 11 10:13:12.848 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Dec 11 10:13:12.849 INFO [stderr]     |         ----^^^^^^
Dec 11 10:13:12.849 INFO [stderr]     |         |
Dec 11 10:13:12.849 INFO [stderr]     |         help: remove this `mut`
Dec 11 10:13:12.849 INFO [stderr]     |
Dec 11 10:13:12.849 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 10:13:12.849 INFO [stderr] 
Dec 11 10:13:12.853 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 10:13:12.853 INFO [stderr]    --> src/main.rs:141:5
Dec 11 10:13:12.853 INFO [stderr]     |
Dec 11 10:13:12.853 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Dec 11 10:13:12.853 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:13:12.853 INFO [stderr]     |
Dec 11 10:13:12.853 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 10:13:12.853 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 10:13:12.853 INFO [stderr] 
Dec 11 10:13:12.920 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.06s
Dec 11 10:13:12.921 INFO [stderr] su: No module specific data is present
Dec 11 10:13:13.972 INFO running `"docker" "inspect" "06884631af81cc5c4e87d3cff4b7a6403dc307d44cf13ac283909f44d4622a6a"`
Dec 11 10:13:14.292 INFO running `"docker" "rm" "-f" "06884631af81cc5c4e87d3cff4b7a6403dc307d44cf13ac283909f44d4622a6a"`
Dec 11 10:13:14.518 INFO [stdout] 06884631af81cc5c4e87d3cff4b7a6403dc307d44cf13ac283909f44d4622a6a