[INFO] crate discrete 0.2.1 is already in cache
[INFO] extracting crate discrete 0.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/discrete/0.2.1
[INFO] extracting crate discrete 0.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/discrete/0.2.1
[INFO] validating manifest of discrete-0.2.1 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 discrete-0.2.1 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 discrete-0.2.1
[INFO] finished frobbing discrete-0.2.1
[INFO] frobbed toml for discrete-0.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/discrete/0.2.1/Cargo.toml
[INFO] started frobbing discrete-0.2.1
[INFO] finished frobbing discrete-0.2.1
[INFO] frobbed toml for discrete-0.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/discrete/0.2.1/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 discrete-0.2.1 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-0/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/discrete/0.2.1:/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] d29a33b03d75039ef6ddd3a17b30ef75a1857dc433e606836ba348a46b8fc30e
[INFO] running `"docker" "start" "-a" "d29a33b03d75039ef6ddd3a17b30ef75a1857dc433e606836ba348a46b8fc30e"`
[INFO] [stderr]    Compiling discrete v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Pair` is imported redundantly
[INFO] [stderr]    --> src/context.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |             use Pair;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 190 |         use Pair;
[INFO] [stderr]     |             ---- the item `Pair` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Pair` is imported redundantly
[INFO] [stderr]    --> src/context.rs:272:17
[INFO] [stderr]     |
[INFO] [stderr] 272 |             use Pair;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 290 |         use Pair;
[INFO] [stderr]     |             ---- the item `Pair` is already imported here
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "d29a33b03d75039ef6ddd3a17b30ef75a1857dc433e606836ba348a46b8fc30e"`
[INFO] running `"docker" "rm" "-f" "d29a33b03d75039ef6ddd3a17b30ef75a1857dc433e606836ba348a46b8fc30e"`
[INFO] [stdout] d29a33b03d75039ef6ddd3a17b30ef75a1857dc433e606836ba348a46b8fc30e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/discrete/0.2.1:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 77d2dc22dfd37742490b9e0279ed4277168fc82d66451db7e4d6b99f74bf5abe
[INFO] running `"docker" "start" "-a" "77d2dc22dfd37742490b9e0279ed4277168fc82d66451db7e4d6b99f74bf5abe"`
[INFO] [stderr]    Compiling discrete v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Pair` is imported redundantly
[INFO] [stderr]    --> src/context.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |             use Pair;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 190 |         use Pair;
[INFO] [stderr]     |             ---- the item `Pair` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Pair` is imported redundantly
[INFO] [stderr]    --> src/context.rs:272:17
[INFO] [stderr]     |
[INFO] [stderr] 272 |             use Pair;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 290 |         use Pair;
[INFO] [stderr]     |             ---- the item `Pair` is already imported here
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `"docker" "inspect" "77d2dc22dfd37742490b9e0279ed4277168fc82d66451db7e4d6b99f74bf5abe"`
[INFO] running `"docker" "rm" "-f" "77d2dc22dfd37742490b9e0279ed4277168fc82d66451db7e4d6b99f74bf5abe"`
[INFO] [stdout] 77d2dc22dfd37742490b9e0279ed4277168fc82d66451db7e4d6b99f74bf5abe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/discrete/0.2.1:/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" "test" "--frozen"`
[INFO] [stdout] 9bec99342e79044de59c41d54b4d84656c1ac42d964062b7392ba2c287d9fa2a
[INFO] running `"docker" "start" "-a" "9bec99342e79044de59c41d54b4d84656c1ac42d964062b7392ba2c287d9fa2a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/discrete-71f3e07373555cb2
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test directed_context::tests::data ... ok
[INFO] [stdout] test directed_context::tests::features ... ok
[INFO] [stdout] test dimension_n::tests::of ... ok
[INFO] [stdout] test eq_pair::tests::features ... ok
[INFO] [stdout] test dimension_n::tests::features ... ok
[INFO] [stdout] test context::tests::features ... ok
[INFO] [stdout] test context::tests::data ... ok
[INFO] [stdout] test dimension::tests::features ... ok
[INFO] [stdout] test dimension_n::tests::data ... ok
[INFO] [stdout] test neq_pair::tests::data ... ok
[INFO] [stdout] test eq_pair::tests::test_eq_pair ... ok
[INFO] [stdout] test context::tests::of ... ok
[INFO] [stdout] test neq_pair::tests::features ... ok
[INFO] [stdout] test pair::tests::data ... ok
[INFO] [stdout] test power_set::tests::data ... ok
[INFO] [stdout] test permutation::test::of ... ok
[INFO] [stdout] test power_set::tests::of ... ok
[INFO] [stdout] test neq_pair::tests::of ... ok
[INFO] [stdout] test permutation::test::features ... ok
[INFO] [stdout] test pair::tests::features ... ok
[INFO] [stdout] test power_set::tests::features ... ok
[INFO] [stdout] test permutation::test::data ... ok
[INFO] [stdout] test pair::tests::of ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests discrete
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/context.rs - context::subspace_offset (line 29) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 23) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 45) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 7) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9bec99342e79044de59c41d54b4d84656c1ac42d964062b7392ba2c287d9fa2a"`
[INFO] running `"docker" "rm" "-f" "9bec99342e79044de59c41d54b4d84656c1ac42d964062b7392ba2c287d9fa2a"`
[INFO] [stdout] 9bec99342e79044de59c41d54b4d84656c1ac42d964062b7392ba2c287d9fa2a