[INFO] updating cached repository gregtatum/rust-sketches [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/gregtatum/rust-sketches [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/gregtatum/rust-sketches" "work/ex/beta-1.37-6/sources/1.36.0/gh/gregtatum/rust-sketches"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/gregtatum/rust-sketches'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/gregtatum/rust-sketches" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gregtatum/rust-sketches"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gregtatum/rust-sketches'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d72efc73822d9837cb7856e6dfae8b85bcaec8bd [INFO] sha for GitHub repo gregtatum/rust-sketches: d72efc73822d9837cb7856e6dfae8b85bcaec8bd [INFO] validating manifest of gregtatum/rust-sketches on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of gregtatum/rust-sketches on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing gregtatum/rust-sketches [INFO] finished frobbing gregtatum/rust-sketches [INFO] frobbed toml for gregtatum/rust-sketches written to work/ex/beta-1.37-6/sources/1.36.0/gh/gregtatum/rust-sketches/Cargo.toml [INFO] started frobbing gregtatum/rust-sketches [INFO] finished frobbing gregtatum/rust-sketches [INFO] frobbed toml for gregtatum/rust-sketches written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gregtatum/rust-sketches/Cargo.toml [INFO] crate gregtatum/rust-sketches already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing gregtatum/rust-sketches against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gregtatum/rust-sketches:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] e81655b01072c545ea1cecefd0c60d213a6e6245e81a4b6b5ce7a14d0b0ec649 [INFO] running `"docker" "start" "-a" "e81655b01072c545ea1cecefd0c60d213a6e6245e81a4b6b5ce7a14d0b0ec649"` [INFO] [stderr] Compiling rust-memory v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.88s [INFO] running `"docker" "inspect" "e81655b01072c545ea1cecefd0c60d213a6e6245e81a4b6b5ce7a14d0b0ec649"` [INFO] running `"docker" "rm" "-f" "e81655b01072c545ea1cecefd0c60d213a6e6245e81a4b6b5ce7a14d0b0ec649"` [INFO] [stdout] e81655b01072c545ea1cecefd0c60d213a6e6245e81a4b6b5ce7a14d0b0ec649 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gregtatum/rust-sketches:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] 67268b73709fd81f81a7d3a914713a7dde4249888cefa50c59b345c5a6534642 [INFO] running `"docker" "start" "-a" "67268b73709fd81f81a7d3a914713a7dde4249888cefa50c59b345c5a6534642"` [INFO] [stderr] Compiling rust-memory v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/match-ownership.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | let mut x = &Struct { value: 5 }; [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 variable: `vecs2` [INFO] [stderr] --> examples/transmute-vecs.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let vecs2 = vec![[0.0, 0.0], [1.0, 1.0]]; [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_vecs2` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `transmute` [INFO] [stderr] --> examples/transmute-vecs.rs:31:1 [INFO] [stderr] | [INFO] [stderr] 31 | fn transmute() { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/transmute-vecs.rs:11:17 [INFO] [stderr] | [INFO] [stderr] 11 | fmtr.write_fmt(format_args!("| ")); [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] error[E0308]: mismatched types [INFO] [stderr] --> examples/iterators.rs:7:11 [INFO] [stderr] | [INFO] [stderr] 7 | vec = vec as Vec; [INFO] [stderr] | ^^^^^^^^^^^^^^^ expected array of 3 elements, found f32 [INFO] [stderr] | [INFO] [stderr] = note: expected type `std::vec::Vec<[f32; 3]>` [INFO] [stderr] found type `std::vec::Vec` [INFO] [stderr] [INFO] [stderr] error[E0605]: non-primitive cast: `std::vec::Vec<[f32; 3]>` as `std::vec::Vec` [INFO] [stderr] --> examples/iterators.rs:7:11 [INFO] [stderr] | [INFO] [stderr] 7 | vec = vec as Vec; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0308, E0605. [INFO] [stderr] For more information about an error, try `rustc --explain E0308`. [INFO] [stderr] error: Could not compile `rust-memory`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "67268b73709fd81f81a7d3a914713a7dde4249888cefa50c59b345c5a6534642"` [INFO] running `"docker" "rm" "-f" "67268b73709fd81f81a7d3a914713a7dde4249888cefa50c59b345c5a6534642"` [INFO] [stdout] 67268b73709fd81f81a7d3a914713a7dde4249888cefa50c59b345c5a6534642