[INFO] fetching crate emcee 1.0.0-alpha.2...
[INFO] testing emcee-1.0.0-alpha.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate emcee 1.0.0-alpha.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate emcee 1.0.0-alpha.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate emcee 1.0.0-alpha.2
[INFO] finished tweaking crates.io crate emcee 1.0.0-alpha.2
[INFO] tweaked toml for crates.io crate emcee 1.0.0-alpha.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5af9d376748ca972650d15352b6d2d15905caa79f51fa555d1028c57eb7e5054
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5af9d376748ca972650d15352b6d2d15905caa79f51fa555d1028c57eb7e5054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5af9d376748ca972650d15352b6d2d15905caa79f51fa555d1028c57eb7e5054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5af9d376748ca972650d15352b6d2d15905caa79f51fa555d1028c57eb7e5054", kill_on_drop: false }`
[INFO] [stdout] 5af9d376748ca972650d15352b6d2d15905caa79f51fa555d1028c57eb7e5054
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f29ef2daa62a791ccc1bfd018c7c29d19801819181b024d710d3ed07305ab83d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f29ef2daa62a791ccc1bfd018c7c29d19801819181b024d710d3ed07305ab83d", kill_on_drop: false }`
[INFO] [stderr]    Compiling emcee v1.0.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:378:14
[INFO] [stdout]     |
[INFO] [stdout] 378 |     rng: Box<Rng>,
[INFO] [stdout]     |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "f29ef2daa62a791ccc1bfd018c7c29d19801819181b024d710d3ed07305ab83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f29ef2daa62a791ccc1bfd018c7c29d19801819181b024d710d3ed07305ab83d", kill_on_drop: false }`
[INFO] [stdout] f29ef2daa62a791ccc1bfd018c7c29d19801819181b024d710d3ed07305ab83d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 86165b9659ae51fd1431b82520349384a62dd2070279ee92e2d979c20ba326b2
[INFO] running `Command { std: "docker" "start" "-a" "86165b9659ae51fd1431b82520349384a62dd2070279ee92e2d979c20ba326b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:378:14
[INFO] [stdout]     |
[INFO] [stdout] 378 |     rng: Box<Rng>,
[INFO] [stdout]     |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling emcee v1.0.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> examples/fitting_a_model_to_data.rs:96:6
[INFO] [stdout]    |
[INFO] [stdout] 96 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:378:14
[INFO] [stdout]     |
[INFO] [stdout] 378 |     rng: Box<Rng>,
[INFO] [stdout]     |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Normal` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1198:13
[INFO] [stdout]      |
[INFO] [stdout] 665  |     use rand::distributions::Normal;
[INFO] [stdout]      |         --------------------------- the item `Normal` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 1198 |         use rand::distributions::Normal;
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "86165b9659ae51fd1431b82520349384a62dd2070279ee92e2d979c20ba326b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86165b9659ae51fd1431b82520349384a62dd2070279ee92e2d979c20ba326b2", kill_on_drop: false }`
[INFO] [stdout] 86165b9659ae51fd1431b82520349384a62dd2070279ee92e2d979c20ba326b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b82d0da458b2dea88c40127b4d0c817ba9901bbee0c599dd1b0e6871906858e7
[INFO] running `Command { std: "docker" "start" "-a" "b82d0da458b2dea88c40127b4d0c817ba9901bbee0c599dd1b0e6871906858e7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 24 tests
[INFO] [stderr]   --> src/errors.rs:42:32
[INFO] [stdout] test guess::tests::test_contains_infinites ... ok
[INFO] [stderr]    |
[INFO] [stdout] test guess::tests::test_contains_nans ... ok
[INFO] [stderr] 42 |     fn cause(&self) -> Option<&::std::error::Error> {
[INFO] [stdout] test guess::tests::test_pertubation ... ok
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout] test guess::tests::test_initial_guess ... ok
[INFO] [stderr]    |
[INFO] [stdout] test stores::test::test_chain ... ok
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] test stores::test::test_probstore ... ok
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] test tests::test_lnprob_implementations ... ok
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] test tests::test_nwalkers_even ... ok
[INFO] [stderr] 
[INFO] [stdout] test tests::test_mat_vec_mul ... ok
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] test tests::test_lnprob_gaussian ... ok
[INFO] [stderr]    --> src/lib.rs:378:14
[INFO] [stdout] test tests::test_lnprob ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tests::test_enough_walkers ... ok
[INFO] [stderr] 378 |     rng: Box<Rng>,
[INFO] [stdout] test tests::test_propose_stretch ... ok
[INFO] [stderr]     |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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] warning: `emcee` (lib) generated 2 warnings
[INFO] [stderr] warning: `emcee` (lib test) generated 3 warnings (2 duplicates)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> examples/fitting_a_model_to_data.rs:96:6
[INFO] [stderr]    |
[INFO] [stderr] 96 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `emcee` (example "fitting_a_model_to_data") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/emcee-0607f023f443d330)
[INFO] [stdout] test tests::test_vec_vec_mul ... ok
[INFO] [stdout] test guess::tests::test_indexing ... ok
[INFO] [stdout] test tests::test_sample_with_callback ... ok
[INFO] [stdout] test tests::test_single_sample ... 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_thinning ... ok
[INFO] [stdout] test tests::test_not_storing_chain ... ok
[INFO] [stdout] test tests::test_mcmc_run ... ok
[INFO] [stderr]    Doc-tests emcee
[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; finished in 1.80s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/lib.rs - (line 80) ... ok
[INFO] [stdout] test src/prob.rs - prob::Prob (line 17) ... ok
[INFO] [stdout] test src/lib.rs - (line 46) ... ok
[INFO] [stdout] test src/lib.rs - (line 109) ... ok
[INFO] [stdout] test src/lib.rs - (line 91) ... 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; finished in 2.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b82d0da458b2dea88c40127b4d0c817ba9901bbee0c599dd1b0e6871906858e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b82d0da458b2dea88c40127b4d0c817ba9901bbee0c599dd1b0e6871906858e7", kill_on_drop: false }`
[INFO] [stdout] b82d0da458b2dea88c40127b4d0c817ba9901bbee0c599dd1b0e6871906858e7