[INFO] crate dq 0.1.0 is already in cache
[INFO] extracting crate dq 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/dq/0.1.0
[INFO] extracting crate dq 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/dq/0.1.0
[INFO] validating manifest of dq-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dq-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dq-0.1.0
[INFO] finished frobbing dq-0.1.0
[INFO] frobbed toml for dq-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/dq/0.1.0/Cargo.toml
[INFO] started frobbing dq-0.1.0
[INFO] finished frobbing dq-0.1.0
[INFO] frobbed toml for dq-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/dq/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing dq-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/dq/0.1.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5f7e68cef8a862d7e170b544e55fffdb2b85ec046b55aabf78364cd8d4debbb3
[INFO] running `"docker" "start" "-a" "5f7e68cef8a862d7e170b544e55fffdb2b85ec046b55aabf78364cd8d4debbb3"`
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling matrixmultiply v0.2.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling alga v0.8.2
[INFO] [stderr]    Compiling nalgebra v0.17.3
[INFO] [stderr]    Compiling dq v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/dual_quaternion.rs:454:9
[INFO] [stderr]     |
[INFO] [stderr] 454 |         /// todo should re^2 + 1 be sqrt or not?
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 455 |         let one = Quaternion::<N>::one();
[INFO] [stderr]     |         --------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `num_traits`
[INFO] [stderr]  --> src/dual_quaternion.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub use num_traits::{One, Zero, Inv, Pow, Signed, Num};
[INFO] [stderr]   |         ^^^^^^^^^^ help: a similar path exists: `self::num_traits`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `nalgebra`
[INFO] [stderr]  --> src/dual_quaternion.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use nalgebra::{Quaternion, Real, Vector3};
[INFO] [stderr]   |     ^^^^^^^^ help: a similar path exists: `self::nalgebra`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `approx`
[INFO] [stderr]   --> src/dual_quaternion.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use approx::{RelativeEq, AbsDiffEq};
[INFO] [stderr]    |     ^^^^^^ help: a similar path exists: `self::approx`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `nalgebra`
[INFO] [stderr]  --> src/screw.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use nalgebra::{Real, Vector3};
[INFO] [stderr]   |     ^^^^^^^^ help: a similar path exists: `self::nalgebra`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::screw::Screw`
[INFO] [stderr]   --> src/dual_quaternion.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::screw::Screw;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/dual_quaternion.rs:425:34
[INFO] [stderr]     |
[INFO] [stderr] 425 |         Self::new(self.re.cos(), (-self.re.sin() * self.du))
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `dq`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5f7e68cef8a862d7e170b544e55fffdb2b85ec046b55aabf78364cd8d4debbb3"`
[INFO] running `"docker" "rm" "-f" "5f7e68cef8a862d7e170b544e55fffdb2b85ec046b55aabf78364cd8d4debbb3"`
[INFO] [stdout] 5f7e68cef8a862d7e170b544e55fffdb2b85ec046b55aabf78364cd8d4debbb3