Dec 04 10:52:33.184 INFO checking samfoo/trees against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 10:52:33.184 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 10:52:33.663 INFO [stdout] 968aac6f8a1a3558e1dc88da975e1a075d2c30e1b61f733a7254cddfd5d74fc1
Dec 04 10:52:33.669 INFO running `"docker" "start" "-a" "968aac6f8a1a3558e1dc88da975e1a075d2c30e1b61f733a7254cddfd5d74fc1"`
Dec 04 10:52:35.086 INFO [stderr] usermod: no changes
Dec 04 10:52:35.175 INFO [stderr]     Checking either v1.1.0
Dec 04 10:52:35.175 INFO [stderr]    Compiling ndarray v0.9.1
Dec 04 10:52:35.183 INFO [stderr]    Compiling cairo-rs v0.1.3
Dec 04 10:52:35.183 INFO [stderr]    Compiling glib-sys v0.3.4
Dec 04 10:52:35.183 INFO [stderr]    Compiling gobject-sys v0.3.4
Dec 04 10:52:35.205 INFO [stderr]    Compiling cairo-sys-rs v0.3.4
Dec 04 10:52:35.205 INFO [stderr]     Checking num-complex v0.1.38
Dec 04 10:52:36.184 INFO [stderr]     Checking itertools v0.6.0
Dec 04 10:52:44.209 INFO [stderr]     Checking glib v0.1.3
Dec 04 10:52:50.599 INFO [stderr]     Checking ndarray-rand v0.5.0
Dec 04 10:52:50.983 INFO [stderr]     Checking trees v0.1.0 (/source)
Dec 04 10:52:51.403 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 04 10:52:51.403 INFO [stderr]   --> src/main.rs:10:5
Dec 04 10:52:51.403 INFO [stderr]    |
Dec 04 10:52:51.403 INFO [stderr] 10 | use std::io::prelude::*;
Dec 04 10:52:51.403 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 04 10:52:51.403 INFO [stderr]    |
Dec 04 10:52:51.403 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 10:52:51.403 INFO [stderr] 
Dec 04 10:52:51.431 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 04 10:52:51.431 INFO [stderr]   --> src/main.rs:10:5
Dec 04 10:52:51.431 INFO [stderr]    |
Dec 04 10:52:51.431 INFO [stderr] 10 | use std::io::prelude::*;
Dec 04 10:52:51.431 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 04 10:52:51.431 INFO [stderr]    |
Dec 04 10:52:51.431 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 04 10:52:51.431 INFO [stderr] 
Dec 04 10:52:51.503 INFO [stderr] warning: unused variable: `ra`
Dec 04 10:52:51.503 INFO [stderr]   --> src/tree.rs:97:25
Dec 04 10:52:51.503 INFO [stderr]    |
Dec 04 10:52:51.503 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Dec 04 10:52:51.503 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Dec 04 10:52:51.503 INFO [stderr]    |
Dec 04 10:52:51.503 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 10:52:51.503 INFO [stderr] 
Dec 04 10:52:51.504 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:52:51.504 INFO [stderr]    --> src/main.rs:138:9
Dec 04 10:52:51.504 INFO [stderr]     |
Dec 04 10:52:51.504 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Dec 04 10:52:51.504 INFO [stderr]     |         ----^^^^^^
Dec 04 10:52:51.504 INFO [stderr]     |         |
Dec 04 10:52:51.504 INFO [stderr]     |         help: remove this `mut`
Dec 04 10:52:51.504 INFO [stderr]     |
Dec 04 10:52:51.504 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 10:52:51.504 INFO [stderr] 
Dec 04 10:52:51.511 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 10:52:51.512 INFO [stderr]    --> src/main.rs:141:5
Dec 04 10:52:51.512 INFO [stderr]     |
Dec 04 10:52:51.512 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Dec 04 10:52:51.512 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:52:51.512 INFO [stderr]     |
Dec 04 10:52:51.512 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 10:52:51.512 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 10:52:51.512 INFO [stderr] 
Dec 04 10:52:51.611 INFO [stderr] warning: unused variable: `ra`
Dec 04 10:52:51.611 INFO [stderr]   --> src/tree.rs:97:25
Dec 04 10:52:51.611 INFO [stderr]    |
Dec 04 10:52:51.611 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Dec 04 10:52:51.611 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Dec 04 10:52:51.611 INFO [stderr]    |
Dec 04 10:52:51.611 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 10:52:51.611 INFO [stderr] 
Dec 04 10:52:51.617 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:52:51.618 INFO [stderr]    --> src/main.rs:138:9
Dec 04 10:52:51.618 INFO [stderr]     |
Dec 04 10:52:51.623 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Dec 04 10:52:51.623 INFO [stderr]     |         ----^^^^^^
Dec 04 10:52:51.623 INFO [stderr]     |         |
Dec 04 10:52:51.623 INFO [stderr]     |         help: remove this `mut`
Dec 04 10:52:51.623 INFO [stderr]     |
Dec 04 10:52:51.623 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 10:52:51.623 INFO [stderr] 
Dec 04 10:52:51.623 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 10:52:51.623 INFO [stderr]    --> src/main.rs:141:5
Dec 04 10:52:51.623 INFO [stderr]     |
Dec 04 10:52:51.623 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Dec 04 10:52:51.623 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:52:51.623 INFO [stderr]     |
Dec 04 10:52:51.623 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 10:52:51.623 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 10:52:51.623 INFO [stderr] 
Dec 04 10:52:51.675 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.56s
Dec 04 10:52:51.695 INFO [stderr] su: No module specific data is present
Dec 04 10:52:52.612 INFO running `"docker" "inspect" "968aac6f8a1a3558e1dc88da975e1a075d2c30e1b61f733a7254cddfd5d74fc1"`
Dec 04 10:52:53.007 INFO running `"docker" "rm" "-f" "968aac6f8a1a3558e1dc88da975e1a075d2c30e1b61f733a7254cddfd5d74fc1"`
Dec 04 10:52:53.255 INFO [stdout] 968aac6f8a1a3558e1dc88da975e1a075d2c30e1b61f733a7254cddfd5d74fc1