Dec 13 04:36:54.330 INFO testing samfoo/trees against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 04:36:54.330 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 04:36:54.615 INFO [stdout] 0786b437251258f00865d39c00d6fcb62205fcea6b4f53a7f0da18d7ab34a0f2
Dec 13 04:36:54.620 INFO running `"docker" "start" "-a" "0786b437251258f00865d39c00d6fcb62205fcea6b4f53a7f0da18d7ab34a0f2"`
Dec 13 04:36:55.497 INFO [stderr] usermod: no changes
Dec 13 04:36:55.595 INFO [stderr]    Compiling libc v0.2.24
Dec 13 04:36:55.598 INFO [stderr]    Compiling ndarray v0.9.1
Dec 13 04:36:55.599 INFO [stderr]    Compiling cairo-rs v0.1.3
Dec 13 04:36:55.599 INFO [stderr]    Compiling c_vec v1.2.1
Dec 13 04:36:55.599 INFO [stderr]    Compiling glib-sys v0.3.4
Dec 13 04:36:55.599 INFO [stderr]    Compiling gobject-sys v0.3.4
Dec 13 04:36:55.599 INFO [stderr]    Compiling cairo-sys-rs v0.3.4
Dec 13 04:36:55.599 INFO [stderr]    Compiling num-complex v0.1.38
Dec 13 04:36:56.479 INFO [stderr]    Compiling itertools v0.6.0
Dec 13 04:36:57.816 INFO [stderr]    Compiling rand v0.3.15
Dec 13 04:37:03.707 INFO [stderr]    Compiling glib v0.1.3
Dec 13 04:37:09.464 INFO [stderr]    Compiling ndarray-rand v0.5.0
Dec 13 04:37:09.878 INFO [stderr]    Compiling trees v0.1.0 (/source)
Dec 13 04:37:10.283 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 13 04:37:10.283 INFO [stderr]   --> src/main.rs:10:5
Dec 13 04:37:10.283 INFO [stderr]    |
Dec 13 04:37:10.283 INFO [stderr] 10 | use std::io::prelude::*;
Dec 13 04:37:10.283 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 13 04:37:10.283 INFO [stderr]    |
Dec 13 04:37:10.283 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 13 04:37:10.283 INFO [stderr] 
Dec 13 04:37:10.360 INFO [stderr] warning: unused variable: `ra`
Dec 13 04:37:10.360 INFO [stderr]   --> src/tree.rs:97:25
Dec 13 04:37:10.360 INFO [stderr]    |
Dec 13 04:37:10.360 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Dec 13 04:37:10.360 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Dec 13 04:37:10.360 INFO [stderr]    |
Dec 13 04:37:10.360 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 04:37:10.360 INFO [stderr] 
Dec 13 04:37:10.379 INFO [stderr] warning: variable does not need to be mutable
Dec 13 04:37:10.379 INFO [stderr]    --> src/main.rs:138:9
Dec 13 04:37:10.379 INFO [stderr]     |
Dec 13 04:37:10.379 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Dec 13 04:37:10.379 INFO [stderr]     |         ----^^^^^^
Dec 13 04:37:10.379 INFO [stderr]     |         |
Dec 13 04:37:10.379 INFO [stderr]     |         help: remove this `mut`
Dec 13 04:37:10.379 INFO [stderr]     |
Dec 13 04:37:10.379 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 13 04:37:10.379 INFO [stderr] 
Dec 13 04:37:10.451 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 04:37:10.451 INFO [stderr]    --> src/main.rs:141:5
Dec 13 04:37:10.451 INFO [stderr]     |
Dec 13 04:37:10.451 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Dec 13 04:37:10.451 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 04:37:10.452 INFO [stderr]     |
Dec 13 04:37:10.452 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 04:37:10.452 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 04:37:10.452 INFO [stderr] 
Dec 13 04:37:11.430 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.90s
Dec 13 04:37:11.430 INFO [stderr] su: No module specific data is present
Dec 13 04:37:12.111 INFO running `"docker" "inspect" "0786b437251258f00865d39c00d6fcb62205fcea6b4f53a7f0da18d7ab34a0f2"`
Dec 13 04:37:12.503 INFO running `"docker" "rm" "-f" "0786b437251258f00865d39c00d6fcb62205fcea6b4f53a7f0da18d7ab34a0f2"`
Dec 13 04:37:12.783 INFO [stdout] 0786b437251258f00865d39c00d6fcb62205fcea6b4f53a7f0da18d7ab34a0f2
Dec 13 04:37:12.786 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 04:37:13.381 INFO [stdout] 1b5ebc428994b5289a3485c3ae7c15f74a29bb33104d7a2cf8c52f751ebe58fd
Dec 13 04:37:13.383 INFO running `"docker" "start" "-a" "1b5ebc428994b5289a3485c3ae7c15f74a29bb33104d7a2cf8c52f751ebe58fd"`
Dec 13 04:37:14.531 INFO [stderr] usermod: no changes
Dec 13 04:37:14.701 INFO [stderr]    Compiling trees v0.1.0 (/source)
Dec 13 04:37:15.123 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 13 04:37:15.123 INFO [stderr]   --> src/main.rs:10:5
Dec 13 04:37:15.123 INFO [stderr]    |
Dec 13 04:37:15.123 INFO [stderr] 10 | use std::io::prelude::*;
Dec 13 04:37:15.123 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 13 04:37:15.123 INFO [stderr]    |
Dec 13 04:37:15.123 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 13 04:37:15.123 INFO [stderr] 
Dec 13 04:37:15.227 INFO [stderr] warning: unused variable: `ra`
Dec 13 04:37:15.227 INFO [stderr]   --> src/tree.rs:97:25
Dec 13 04:37:15.227 INFO [stderr]    |
Dec 13 04:37:15.227 INFO [stderr] 97 |                     let ra = 0.3 * PI * rng.next_f64() * l_or_r;
Dec 13 04:37:15.227 INFO [stderr]    |                         ^^ help: consider using `_ra` instead
Dec 13 04:37:15.227 INFO [stderr]    |
Dec 13 04:37:15.227 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 04:37:15.227 INFO [stderr] 
Dec 13 04:37:15.243 INFO [stderr] warning: variable does not need to be mutable
Dec 13 04:37:15.243 INFO [stderr]    --> src/main.rs:138:9
Dec 13 04:37:15.243 INFO [stderr]     |
Dec 13 04:37:15.243 INFO [stderr] 138 |     let mut output = File::create(output()).unwrap();
Dec 13 04:37:15.243 INFO [stderr]     |         ----^^^^^^
Dec 13 04:37:15.243 INFO [stderr]     |         |
Dec 13 04:37:15.243 INFO [stderr]     |         help: remove this `mut`
Dec 13 04:37:15.243 INFO [stderr]     |
Dec 13 04:37:15.255 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 13 04:37:15.255 INFO [stderr] 
Dec 13 04:37:15.255 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 04:37:15.255 INFO [stderr]    --> src/main.rs:141:5
Dec 13 04:37:15.255 INFO [stderr]     |
Dec 13 04:37:15.255 INFO [stderr] 141 |     surface.write_to_png(&mut f);
Dec 13 04:37:15.255 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 04:37:15.255 INFO [stderr]     |
Dec 13 04:37:15.255 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 04:37:15.255 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 04:37:15.255 INFO [stderr] 
Dec 13 04:37:15.630 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Dec 13 04:37:15.635 INFO [stderr] su: No module specific data is present
Dec 13 04:37:16.349 INFO running `"docker" "inspect" "1b5ebc428994b5289a3485c3ae7c15f74a29bb33104d7a2cf8c52f751ebe58fd"`
Dec 13 04:37:16.633 INFO running `"docker" "rm" "-f" "1b5ebc428994b5289a3485c3ae7c15f74a29bb33104d7a2cf8c52f751ebe58fd"`
Dec 13 04:37:16.971 INFO [stdout] 1b5ebc428994b5289a3485c3ae7c15f74a29bb33104d7a2cf8c52f751ebe58fd
Dec 13 04:37:16.975 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-7/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 04:37:17.231 INFO [stdout] 4e2fc852adb30d116b71adc998c2eca86fe09a47ca10a0bf295e64f463e3fc62
Dec 13 04:37:17.233 INFO running `"docker" "start" "-a" "4e2fc852adb30d116b71adc998c2eca86fe09a47ca10a0bf295e64f463e3fc62"`
Dec 13 04:37:18.359 INFO [stderr] usermod: no changes
Dec 13 04:37:18.527 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
Dec 13 04:37:18.529 INFO [stderr]      Running /target/debug/deps/trees-1642dcd88f40fa70
Dec 13 04:37:18.544 INFO [stdout] 
Dec 13 04:37:18.544 INFO [stdout] running 0 tests
Dec 13 04:37:18.544 INFO [stdout] 
Dec 13 04:37:18.544 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 04:37:18.544 INFO [stdout] 
Dec 13 04:37:18.549 INFO [stderr] su: No module specific data is present
Dec 13 04:37:19.601 INFO running `"docker" "inspect" "4e2fc852adb30d116b71adc998c2eca86fe09a47ca10a0bf295e64f463e3fc62"`
Dec 13 04:37:19.687 INFO running `"docker" "rm" "-f" "4e2fc852adb30d116b71adc998c2eca86fe09a47ca10a0bf295e64f463e3fc62"`
Dec 13 04:37:19.856 INFO [stdout] 4e2fc852adb30d116b71adc998c2eca86fe09a47ca10a0bf295e64f463e3fc62