[INFO] updating cached repository samfoo/trees [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/samfoo/trees [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/samfoo/trees" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/samfoo/trees"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/samfoo/trees'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/samfoo/trees" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/samfoo/trees"` [INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/samfoo/trees'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e5a1dedf47be273d4cd153ee6281b31dfb8a4c60 [INFO] sha for GitHub repo samfoo/trees: e5a1dedf47be273d4cd153ee6281b31dfb8a4c60 [INFO] validating manifest of samfoo/trees on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of samfoo/trees on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing samfoo/trees [INFO] finished frobbing samfoo/trees [INFO] frobbed toml for samfoo/trees written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/samfoo/trees/Cargo.toml [INFO] started frobbing samfoo/trees [INFO] finished frobbing samfoo/trees [INFO] frobbed toml for samfoo/trees written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/samfoo/trees/Cargo.toml [INFO] crate samfoo/trees has a lockfile. skipping [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing samfoo/trees against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/samfoo/trees:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"` [INFO] [stdout] e48f3ff9045dd44cf214ea47c4937223564df7e143624901c7e9833bbe6d039a [INFO] running `"docker" "start" "-a" "e48f3ff9045dd44cf214ea47c4937223564df7e143624901c7e9833bbe6d039a"` [INFO] [stderr] Compiling matrixmultiply v0.1.13 [INFO] [stderr] Compiling ndarray v0.9.1 [INFO] [stderr] Compiling either v1.1.0 [INFO] [stderr] Compiling cairo-rs v0.1.3 [INFO] [stderr] Compiling glib-sys v0.3.4 [INFO] [stderr] Compiling gobject-sys v0.3.4 [INFO] [stderr] Compiling cairo-sys-rs v0.3.4 [INFO] [stderr] Compiling num-complex v0.1.38 [INFO] [stderr] Compiling itertools v0.6.0 [INFO] [stderr] Compiling glib v0.1.3 [INFO] [stderr] Compiling ndarray-rand v0.5.0 [INFO] [stderr] Compiling trees v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::io::prelude::*` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::io::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ra` [INFO] [stderr] --> src/tree.rs:97:25 [INFO] [stderr] | [INFO] [stderr] 97 | let ra = 0.3 * PI * rng.next_f64() * l_or_r; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_ra` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:138:9 [INFO] [stderr] | [INFO] [stderr] 138 | let mut output = File::create(output()).unwrap(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:141:5 [INFO] [stderr] | [INFO] [stderr] 141 | surface.write_to_png(&mut f); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 17.61s [INFO] running `"docker" "inspect" "e48f3ff9045dd44cf214ea47c4937223564df7e143624901c7e9833bbe6d039a"` [INFO] running `"docker" "rm" "-f" "e48f3ff9045dd44cf214ea47c4937223564df7e143624901c7e9833bbe6d039a"` [INFO] [stdout] e48f3ff9045dd44cf214ea47c4937223564df7e143624901c7e9833bbe6d039a [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/samfoo/trees:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 3c190ead8a47a9ae812ae3647c11e270e6157225e3949d376b09cb03a0077283 [INFO] running `"docker" "start" "-a" "3c190ead8a47a9ae812ae3647c11e270e6157225e3949d376b09cb03a0077283"` [INFO] [stderr] Compiling trees v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::io::prelude::*` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::io::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ra` [INFO] [stderr] --> src/tree.rs:97:25 [INFO] [stderr] | [INFO] [stderr] 97 | let ra = 0.3 * PI * rng.next_f64() * l_or_r; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_ra` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:138:9 [INFO] [stderr] | [INFO] [stderr] 138 | let mut output = File::create(output()).unwrap(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:141:5 [INFO] [stderr] | [INFO] [stderr] 141 | surface.write_to_png(&mut f); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.74s [INFO] running `"docker" "inspect" "3c190ead8a47a9ae812ae3647c11e270e6157225e3949d376b09cb03a0077283"` [INFO] running `"docker" "rm" "-f" "3c190ead8a47a9ae812ae3647c11e270e6157225e3949d376b09cb03a0077283"` [INFO] [stdout] 3c190ead8a47a9ae812ae3647c11e270e6157225e3949d376b09cb03a0077283 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-3/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/samfoo/trees:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"` [INFO] [stdout] 9b2bd4c94e3051c8367200cc1d2a6a39b8f2f0b7e7084a7223e023f455c360a3 [INFO] running `"docker" "start" "-a" "9b2bd4c94e3051c8367200cc1d2a6a39b8f2f0b7e7084a7223e023f455c360a3"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running /opt/crater/target/debug/deps/trees-7d9e0e72ba162e91 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "9b2bd4c94e3051c8367200cc1d2a6a39b8f2f0b7e7084a7223e023f455c360a3"` [INFO] running `"docker" "rm" "-f" "9b2bd4c94e3051c8367200cc1d2a6a39b8f2f0b7e7084a7223e023f455c360a3"` [INFO] [stdout] 9b2bd4c94e3051c8367200cc1d2a6a39b8f2f0b7e7084a7223e023f455c360a3