[INFO] crate emcee 1.0.0-alpha.2 is already in cache
[INFO] extracting crate emcee 1.0.0-alpha.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/emcee/1.0.0-alpha.2
[INFO] extracting crate emcee 1.0.0-alpha.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/emcee/1.0.0-alpha.2
[INFO] validating manifest of emcee-1.0.0-alpha.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 emcee-1.0.0-alpha.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 emcee-1.0.0-alpha.2
[INFO] finished frobbing emcee-1.0.0-alpha.2
[INFO] frobbed toml for emcee-1.0.0-alpha.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/emcee/1.0.0-alpha.2/Cargo.toml
[INFO] started frobbing emcee-1.0.0-alpha.2
[INFO] finished frobbing emcee-1.0.0-alpha.2
[INFO] frobbed toml for emcee-1.0.0-alpha.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/emcee/1.0.0-alpha.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 emcee-1.0.0-alpha.2 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/emcee/1.0.0-alpha.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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 2ead71c4979416a0499621f9385ec4b28b2bba967ee2d73bbc4238693e9e961c
[INFO] running `"docker" "start" "-a" "2ead71c4979416a0499621f9385ec4b28b2bba967ee2d73bbc4238693e9e961c"`
[INFO] [stderr]    Compiling emcee v1.0.0-alpha.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:42:32
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:378:14
[INFO] [stderr]     |
[INFO] [stderr] 378 |     rng: Box<Rng>,
[INFO] [stderr]     |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `"docker" "inspect" "2ead71c4979416a0499621f9385ec4b28b2bba967ee2d73bbc4238693e9e961c"`
[INFO] running `"docker" "rm" "-f" "2ead71c4979416a0499621f9385ec4b28b2bba967ee2d73bbc4238693e9e961c"`
[INFO] [stdout] 2ead71c4979416a0499621f9385ec4b28b2bba967ee2d73bbc4238693e9e961c
[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/emcee/1.0.0-alpha.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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] f77e1561cba2ab5a20e4ef69e7ca321014026022fa700242eafec98108d26382
[INFO] running `"docker" "start" "-a" "f77e1561cba2ab5a20e4ef69e7ca321014026022fa700242eafec98108d26382"`
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling emcee v1.0.0-alpha.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:42:32
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:378:14
[INFO] [stderr]     |
[INFO] [stderr] 378 |     rng: Box<Rng>,
[INFO] [stderr]     |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Normal` is imported redundantly
[INFO] [stderr]     --> src/lib.rs:1198:13
[INFO] [stderr]      |
[INFO] [stderr] 665  |     use rand::distributions::Normal;
[INFO] [stderr]      |         --------------------------- the item `Normal` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 1198 |         use rand::distributions::Normal;
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.92s
[INFO] running `"docker" "inspect" "f77e1561cba2ab5a20e4ef69e7ca321014026022fa700242eafec98108d26382"`
[INFO] running `"docker" "rm" "-f" "f77e1561cba2ab5a20e4ef69e7ca321014026022fa700242eafec98108d26382"`
[INFO] [stdout] f77e1561cba2ab5a20e4ef69e7ca321014026022fa700242eafec98108d26382
[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/emcee/1.0.0-alpha.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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c94b9203620f63e81b74c4d6dac189c523bc0a3e0f21852810317ef4a5a3df61
[INFO] running `"docker" "start" "-a" "c94b9203620f63e81b74c4d6dac189c523bc0a3e0f21852810317ef4a5a3df61"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/emcee-07f3c964c6f2a79a
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test guess::tests::test_contains_nans ... ok
[INFO] [stdout] test guess::tests::test_contains_infinites ... ok
[INFO] [stdout] test guess::tests::test_indexing ... ok
[INFO] [stdout] test guess::tests::test_initial_guess ... ok
[INFO] [stdout] test tests::test_lnprob_implementations ... ok
[INFO] [stdout] test tests::test_mat_vec_mul ... ok
[INFO] [stdout] test tests::test_lnprob_gaussian ... ok
[INFO] [stdout] test tests::test_lnprob ... ok
[INFO] [stdout] test tests::test_nwalkers_even ... ok
[INFO] [stdout] test stores::test::test_probstore ... ok
[INFO] [stdout] test tests::test_enough_walkers ... ok
[INFO] [stdout] test stores::test::test_chain ... ok
[INFO] [stdout] test guess::tests::test_pertubation ... ok
[INFO] [stdout] test tests::test_single_sample ... ok
[INFO] [stdout] test tests::test_propose_stretch ... ok
[INFO] [stdout] test tests::test_sample_with_callback ... ok
[INFO] [stdout] test tests::test_vec_vec_mul ... ok
[INFO] [stdout] test tests::test_run_mcmc ... ok
[INFO] [stdout] test tests::test_with_initial_state ... ok
[INFO] [stdout] test tests::test_restart_sampler ... ok
[INFO] [stdout] test tests::test_not_storing_chain ... ok
[INFO] [stdout] test tests::test_thinning ... ok
[INFO] [stdout] test tests::test_mcmc_run ... ok
[INFO] [stdout] test tests::test_multivariate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests emcee
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs -  (line 22) ... ok
[INFO] [stdout] test src/lib.rs -  (line 46) ... ok
[INFO] [stdout] test src/lib.rs -  (line 80) ... ok
[INFO] [stdout] test src/lib.rs -  (line 91) ... ok
[INFO] [stdout] test src/lib.rs -  (line 109) ... ok
[INFO] [stdout] test src/prob.rs - prob::Prob (line 17) ... ok
[INFO] [stdout] test src/lib.rs -  (line 151) ... ok
[INFO] [stdout] test src/lib.rs -  (line 206) ... ok
[INFO] [stdout] test src/lib.rs -  (line 258) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c94b9203620f63e81b74c4d6dac189c523bc0a3e0f21852810317ef4a5a3df61"`
[INFO] running `"docker" "rm" "-f" "c94b9203620f63e81b74c4d6dac189c523bc0a3e0f21852810317ef4a5a3df61"`
[INFO] [stdout] c94b9203620f63e81b74c4d6dac189c523bc0a3e0f21852810317ef4a5a3df61