[INFO] crate quantum 0.1.2 is already in cache
[INFO] extracting crate quantum 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/quantum/0.1.2
[INFO] extracting crate quantum 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/quantum/0.1.2
[INFO] validating manifest of quantum-0.1.2 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 quantum-0.1.2 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 quantum-0.1.2
[INFO] finished frobbing quantum-0.1.2
[INFO] frobbed toml for quantum-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/quantum/0.1.2/Cargo.toml
[INFO] started frobbing quantum-0.1.2
[INFO] finished frobbing quantum-0.1.2
[INFO] frobbed toml for quantum-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/quantum/0.1.2/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] testing quantum-0.1.2 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/quantum/0.1.2:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5b40777372ee8cdea2cce0997ebe543714582259b36cb0c5f98715a492357a45
[INFO] running `"docker" "start" "-a" "5b40777372ee8cdea2cce0997ebe543714582259b36cb0c5f98715a492357a45"`
[INFO] [stderr]    Compiling float-cmp v0.2.5
[INFO] [stderr]    Compiling quantum v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "5b40777372ee8cdea2cce0997ebe543714582259b36cb0c5f98715a492357a45"`
[INFO] running `"docker" "rm" "-f" "5b40777372ee8cdea2cce0997ebe543714582259b36cb0c5f98715a492357a45"`
[INFO] [stdout] 5b40777372ee8cdea2cce0997ebe543714582259b36cb0c5f98715a492357a45
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/quantum/0.1.2:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6e8396a566fe626f2576931aa487af45f8f4b416eacf5fc935665fd91f4dc7c2
[INFO] running `"docker" "start" "-a" "6e8396a566fe626f2576931aa487af45f8f4b416eacf5fc935665fd91f4dc7c2"`
[INFO] [stderr]    Compiling quantum v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/matrix.rs:193:8
[INFO] [stderr]     |
[INFO] [stderr] 193 |    let mut m = m_real![1, 2; 3, 4];
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/matrix.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |     let mut added = m_real![2, 4; 6, 8];
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/matrix.rs:205:9
[INFO] [stderr]     |
[INFO] [stderr] 205 |     let mut squared = m_real![7, 10; 15, 22];
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `"docker" "inspect" "6e8396a566fe626f2576931aa487af45f8f4b416eacf5fc935665fd91f4dc7c2"`
[INFO] running `"docker" "rm" "-f" "6e8396a566fe626f2576931aa487af45f8f4b416eacf5fc935665fd91f4dc7c2"`
[INFO] [stdout] 6e8396a566fe626f2576931aa487af45f8f4b416eacf5fc935665fd91f4dc7c2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/quantum/0.1.2:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 2a375e1ae72fd505ff773aca66f7a96a79e368b3ac3d8b185bbb244abb8c5c40
[INFO] running `"docker" "start" "-a" "2a375e1ae72fd505ff773aca66f7a96a79e368b3ac3d8b185bbb244abb8c5c40"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/quantum-328da72ce723b8d8
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test complex::complex_test ... ok
[INFO] [stdout] test computer::compute_test ... ok
[INFO] [stdout] test computer::state_test ... ok
[INFO] [stdout] test ket::classical_test ... ok
[INFO] [stdout] test gates::identity_test ... ok
[INFO] [stdout] test gates::pauli_z_test ... ok
[INFO] [stdout] test gates::pauli_y_test ... ok
[INFO] [stdout] test gates::pauli_x_test ... ok
[INFO] [stdout] test gates::swap_test ... ok
[INFO] [stdout] test gates::phase_shift_test ... ok
[INFO] [stdout] test ket::from_classical_test ... ok
[INFO] [stdout] test other::qubit::initialization_test ... ok
[INFO] [stdout] test matrix::matrix_test ... ok
[INFO] [stdout] test ket::valid_test ... ok
[INFO] [stdout] test registers::initialization_test ... ok
[INFO] [stdout] test registers::collapse_test ... ok
[INFO] [stdout] test registers::state_test ... ok
[INFO] [stdout] test gates::hadamard_test ... ok
[INFO] [stdout] test other::qubit::bad_initialization_test ... ok
[INFO] [stdout] test registers::double_collapse_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests quantum
[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" "2a375e1ae72fd505ff773aca66f7a96a79e368b3ac3d8b185bbb244abb8c5c40"`
[INFO] running `"docker" "rm" "-f" "2a375e1ae72fd505ff773aca66f7a96a79e368b3ac3d8b185bbb244abb8c5c40"`
[INFO] [stdout] 2a375e1ae72fd505ff773aca66f7a96a79e368b3ac3d8b185bbb244abb8c5c40