Dec 05 08:43:20.506 INFO testing samfoo/trees against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 08:43:20.506 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 05 08:43:20.927 INFO [stdout] a8d1f1719d4b53a31794c01fc8ac2cd4b82baa52111d78ef432622eca8c67620
Dec 05 08:43:20.929 INFO running `"docker" "start" "-a" "a8d1f1719d4b53a31794c01fc8ac2cd4b82baa52111d78ef432622eca8c67620"`
Dec 05 08:43:21.982 INFO [stderr] usermod: no changes
Dec 05 08:43:22.100 INFO [stderr]    Compiling matrixmultiply v0.1.13
Dec 05 08:43:22.100 INFO [stderr]    Compiling ndarray v0.9.1
Dec 05 08:43:22.108 INFO [stderr]    Compiling cairo-rs v0.1.3
Dec 05 08:43:22.108 INFO [stderr]    Compiling cairo-sys-rs v0.3.4
Dec 05 08:43:22.108 INFO [stderr]    Compiling num-complex v0.1.38
Dec 05 08:43:22.108 INFO [stderr]    Compiling itertools v0.6.0
Dec 05 08:43:22.108 INFO [stderr]    Compiling glib-sys v0.3.4
Dec 05 08:43:29.176 INFO [stderr]    Compiling gobject-sys v0.3.4
Dec 05 08:43:30.765 INFO [stderr]    Compiling glib v0.1.3
Dec 05 08:43:38.580 INFO [stderr]    Compiling ndarray-rand v0.5.0
Dec 05 08:43:39.016 INFO [stderr]    Compiling trees v0.1.0 (/source)
Dec 05 08:43:39.429 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 05 08:43:39.429 INFO [stderr]   --> src/main.rs:10:5
Dec 05 08:43:39.429 INFO [stderr]    |
Dec 05 08:43:39.429 INFO [stderr] 10 | use std::io::prelude::*;
Dec 05 08:43:39.429 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 08:43:39.429 INFO [stderr]    |
Dec 05 08:43:39.429 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 08:43:39.429 INFO [stderr] 
Dec 05 08:43:39.520 INFO [stderr] warning: unused variable: `ra`
Dec 05 08:43:39.520 INFO [stderr]   --> src/tree.rs:97:25
Dec 05 08:43:39.520 INFO [stderr]    |
Dec 05 08:43:39.520 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Dec 05 08:43:39.520 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Dec 05 08:43:39.520 INFO [stderr]    |
Dec 05 08:43:39.520 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 08:43:39.520 INFO [stderr] 
Dec 05 08:43:39.548 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:43:39.548 INFO [stderr]    --> src/main.rs:138:9
Dec 05 08:43:39.548 INFO [stderr]     |
Dec 05 08:43:39.548 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Dec 05 08:43:39.548 INFO [stderr]     |         ----^^^^^^
Dec 05 08:43:39.548 INFO [stderr]     |         |
Dec 05 08:43:39.548 INFO [stderr]     |         help: remove this `mut`
Dec 05 08:43:39.548 INFO [stderr]     |
Dec 05 08:43:39.548 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 08:43:39.548 INFO [stderr] 
Dec 05 08:43:39.548 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 08:43:39.548 INFO [stderr]    --> src/main.rs:141:5
Dec 05 08:43:39.548 INFO [stderr]     |
Dec 05 08:43:39.548 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Dec 05 08:43:39.548 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:43:39.548 INFO [stderr]     |
Dec 05 08:43:39.548 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 08:43:39.548 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 08:43:39.548 INFO [stderr] 
Dec 05 08:43:40.620 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.60s
Dec 05 08:43:40.628 INFO [stderr] su: No module specific data is present
Dec 05 08:43:41.470 INFO running `"docker" "inspect" "a8d1f1719d4b53a31794c01fc8ac2cd4b82baa52111d78ef432622eca8c67620"`
Dec 05 08:43:41.738 INFO running `"docker" "rm" "-f" "a8d1f1719d4b53a31794c01fc8ac2cd4b82baa52111d78ef432622eca8c67620"`
Dec 05 08:43:41.922 INFO [stdout] a8d1f1719d4b53a31794c01fc8ac2cd4b82baa52111d78ef432622eca8c67620
Dec 05 08:43:41.922 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 05 08:43:42.266 INFO [stdout] 3420e9054cfa0fd131f88a20d4521044022354a13a9fe206b6432d43be3db53a
Dec 05 08:43:42.268 INFO running `"docker" "start" "-a" "3420e9054cfa0fd131f88a20d4521044022354a13a9fe206b6432d43be3db53a"`
Dec 05 08:43:43.224 INFO [stderr] usermod: no changes
Dec 05 08:43:43.293 INFO [stderr]    Compiling trees v0.1.0 (/source)
Dec 05 08:43:43.723 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 05 08:43:43.723 INFO [stderr]   --> src/main.rs:10:5
Dec 05 08:43:43.723 INFO [stderr]    |
Dec 05 08:43:43.723 INFO [stderr] 10 | use std::io::prelude::*;
Dec 05 08:43:43.723 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 08:43:43.723 INFO [stderr]    |
Dec 05 08:43:43.723 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 08:43:43.723 INFO [stderr] 
Dec 05 08:43:43.820 INFO [stderr] warning: unused variable: `ra`
Dec 05 08:43:43.820 INFO [stderr]   --> src/tree.rs:97:25
Dec 05 08:43:43.820 INFO [stderr]    |
Dec 05 08:43:43.820 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Dec 05 08:43:43.820 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Dec 05 08:43:43.820 INFO [stderr]    |
Dec 05 08:43:43.820 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 08:43:43.820 INFO [stderr] 
Dec 05 08:43:43.830 INFO [stderr] warning: variable does not need to be mutable
Dec 05 08:43:43.830 INFO [stderr]    --> src/main.rs:138:9
Dec 05 08:43:43.830 INFO [stderr]     |
Dec 05 08:43:43.830 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Dec 05 08:43:43.830 INFO [stderr]     |         ----^^^^^^
Dec 05 08:43:43.830 INFO [stderr]     |         |
Dec 05 08:43:43.830 INFO [stderr]     |         help: remove this `mut`
Dec 05 08:43:43.830 INFO [stderr]     |
Dec 05 08:43:43.830 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 08:43:43.830 INFO [stderr] 
Dec 05 08:43:43.836 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 08:43:43.836 INFO [stderr]    --> src/main.rs:141:5
Dec 05 08:43:43.836 INFO [stderr]     |
Dec 05 08:43:43.836 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Dec 05 08:43:43.836 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:43:43.836 INFO [stderr]     |
Dec 05 08:43:43.836 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 08:43:43.836 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 08:43:43.836 INFO [stderr] 
Dec 05 08:43:44.228 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
Dec 05 08:43:44.234 INFO [stderr] su: No module specific data is present
Dec 05 08:43:45.160 INFO running `"docker" "inspect" "3420e9054cfa0fd131f88a20d4521044022354a13a9fe206b6432d43be3db53a"`
Dec 05 08:43:45.484 INFO running `"docker" "rm" "-f" "3420e9054cfa0fd131f88a20d4521044022354a13a9fe206b6432d43be3db53a"`
Dec 05 08:43:45.884 INFO [stdout] 3420e9054cfa0fd131f88a20d4521044022354a13a9fe206b6432d43be3db53a
Dec 05 08:43:45.888 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 05 08:43:46.292 INFO [stdout] 7e53fcf72bcac05ff7ac30dc5286109fdbada385e035d2b7b3dbdf95d4568aad
Dec 05 08:43:46.294 INFO running `"docker" "start" "-a" "7e53fcf72bcac05ff7ac30dc5286109fdbada385e035d2b7b3dbdf95d4568aad"`
Dec 05 08:43:47.592 INFO [stderr] usermod: no changes
Dec 05 08:43:47.684 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Dec 05 08:43:47.720 INFO [stderr]      Running /target/debug/deps/trees-973b2a2c8ce1b533
Dec 05 08:43:47.728 INFO [stdout] 
Dec 05 08:43:47.728 INFO [stdout] running 0 tests
Dec 05 08:43:47.728 INFO [stdout] 
Dec 05 08:43:47.728 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 08:43:47.728 INFO [stdout] 
Dec 05 08:43:47.729 INFO [stderr] su: No module specific data is present
Dec 05 08:43:48.634 INFO running `"docker" "inspect" "7e53fcf72bcac05ff7ac30dc5286109fdbada385e035d2b7b3dbdf95d4568aad"`
Dec 05 08:43:48.904 INFO running `"docker" "rm" "-f" "7e53fcf72bcac05ff7ac30dc5286109fdbada385e035d2b7b3dbdf95d4568aad"`
Dec 05 08:43:49.200 INFO [stdout] 7e53fcf72bcac05ff7ac30dc5286109fdbada385e035d2b7b3dbdf95d4568aad