[INFO] fetching crate lfa 0.15.0...
[INFO] testing lfa-0.15.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate lfa 0.15.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate lfa 0.15.0 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 lfa 0.15.0
[INFO] finished tweaking crates.io crate lfa 0.15.0
[INFO] tweaked toml for crates.io crate lfa 0.15.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 8ec030d8e0b7090253f603807692781f9aedbec9cb3d084991e466f970159b51
[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" "8ec030d8e0b7090253f603807692781f9aedbec9cb3d084991e466f970159b51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ec030d8e0b7090253f603807692781f9aedbec9cb3d084991e466f970159b51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ec030d8e0b7090253f603807692781f9aedbec9cb3d084991e466f970159b51", kill_on_drop: false }`
[INFO] [stdout] 8ec030d8e0b7090253f603807692781f9aedbec9cb3d084991e466f970159b51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] cfd3e649eb8f4e6888bde4b64ea1770cd3c19327af095e1592a8a111c41fd8e0
[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" "cfd3e649eb8f4e6888bde4b64ea1770cd3c19327af095e1592a8a111c41fd8e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling spaces v5.0.0
[INFO] [stderr]    Compiling lfa v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/features.rs:372:9
[INFO] [stdout]     |
[INFO] [stdout] 372 |         mem::replace(self, old.map_into(f));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/features.rs:538:9
[INFO] [stdout]     |
[INFO] [stdout] 538 |         mem::replace(self, old.merge_into(other, f));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "cfd3e649eb8f4e6888bde4b64ea1770cd3c19327af095e1592a8a111c41fd8e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd3e649eb8f4e6888bde4b64ea1770cd3c19327af095e1592a8a111c41fd8e0", kill_on_drop: false }`
[INFO] [stdout] cfd3e649eb8f4e6888bde4b64ea1770cd3c19327af095e1592a8a111c41fd8e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] b2f418b33d14d3d2b79cf9cd57b625da9060a5b8b3f4534e325a56f292a950ae
[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" "b2f418b33d14d3d2b79cf9cd57b625da9060a5b8b3f4534e325a56f292a950ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling openblas-src v0.6.1
[INFO] [stderr]    Compiling seahash v4.1.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/features.rs:372:9
[INFO] [stdout]     |
[INFO] [stdout] 372 |         mem::replace(self, old.map_into(f));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/features.rs:538:9
[INFO] [stdout]     |
[INFO] [stdout] 538 |         mem::replace(self, old.merge_into(other, f));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling blas-src v0.2.1
[INFO] [stderr]    Compiling lfa v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/features.rs:372:9
[INFO] [stdout]     |
[INFO] [stdout] 372 |         mem::replace(self, old.map_into(f));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/features.rs:538:9
[INFO] [stdout]     |
[INFO] [stdout] 538 |         mem::replace(self, old.merge_into(other, f));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.32s
[INFO] running `Command { std: "docker" "inspect" "b2f418b33d14d3d2b79cf9cd57b625da9060a5b8b3f4534e325a56f292a950ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2f418b33d14d3d2b79cf9cd57b625da9060a5b8b3f4534e325a56f292a950ae", kill_on_drop: false }`
[INFO] [stdout] b2f418b33d14d3d2b79cf9cd57b625da9060a5b8b3f4534e325a56f292a950ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 456a3647f42bee097ec40e56356e557c78caea8bd0a129a8a305896b9d7752ae
[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" "456a3647f42bee097ec40e56356e557c78caea8bd0a129a8a305896b9d7752ae", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/features.rs:372:9
[INFO] [stderr]     |
[INFO] [stderr] 372 |         mem::replace(self, old.map_into(f));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/features.rs:538:9
[INFO] [stderr]     |
[INFO] [stderr] 538 |         mem::replace(self, old.merge_into(other, f));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: `lfa` (lib) generated 2 warnings
[INFO] [stderr] warning: `lfa` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lfa-4cec87b60eb44c82)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test basis::tile_coding::tests::test_bin_state_1d ... ok
[INFO] [stdout] test basis::stack::tests::test_stack_mixed ... ok
[INFO] [stdout] test basis::tile_coding::tests::test_bin_state_2d ... ok
[INFO] [stdout] test basis::stack::tests::test_stack_indices ... ok
[INFO] [stdout] test basis::fourier::tests::test_order2_1d ... ok
[INFO] [stdout] test basis::kernelised::tests::test_projection_2d ... ok
[INFO] [stdout] test basis::stack::tests::test_stack_constant ... ok
[INFO] [stdout] test basis::fourier::tests::test_order2_2d ... ok
[INFO] [stdout] test features::tests::test_sparse ... ok
[INFO] [stdout] test features::tests::test_map_inplace ... ok
[INFO] [stdout] test features::tests::test_merge_inplace ... ok
[INFO] [stdout] test basis::kernelised::tests::test_projection_1d ... ok
[INFO] [stdout] test basis::kernelised::tests::test_n_features ... ok
[INFO] [stdout] test basis::fourier::tests::test_order1_2d ... ok
[INFO] [stdout] test basis::uniform_grid::tests::test_2d ... ok
[INFO] [stdout] test basis::fourier::tests::test_n_features ... ok
[INFO] [stdout] test basis::fourier::tests::test_order1_1d ... ok
[INFO] [stdout] test basis::fourier::tests::test_bounds ... ok
[INFO] [stdout] test features::tests::test_dense ... ok
[INFO] [stdout] test basis::uniform_grid::tests::test_1d ... ok
[INFO] [stdout] test basis::normalisation::tests::test_l2 ... ok
[INFO] [stdout] test basis::normalisation::tests::test_l1 ... ok
[INFO] [stdout] test basis::constant::tests::test_project_general ... ok
[INFO] [stdout] test basis::uniform_grid::tests::test_3d ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lfa
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - (line 11) - compile ... ok
[INFO] [stdout] test src/features.rs - features::Features::remove (line 208) ... ok
[INFO] [stdout] test src/features.rs - features::Features::stack (line 273) ... ok
[INFO] [stdout] test src/features.rs - features::Features::dot (line 555) ... ok
[INFO] [stdout] test src/features.rs - features::Features::into_dense (line 248) ... ok
[INFO] [stdout] test src/basis/polynomial/mod.rs - basis::polynomial::Polynomial (line 27) ... ok
[INFO] [stdout] test src/features.rs - features::Features::matmul (line 591) ... ok
[INFO] [stdout] test src/basis/polynomial/mod.rs - basis::polynomial::Polynomial (line 14) ... ok
[INFO] [stdout] test src/basis/mod.rs - basis::Basis::project (line 30) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "456a3647f42bee097ec40e56356e557c78caea8bd0a129a8a305896b9d7752ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "456a3647f42bee097ec40e56356e557c78caea8bd0a129a8a305896b9d7752ae", kill_on_drop: false }`
[INFO] [stdout] 456a3647f42bee097ec40e56356e557c78caea8bd0a129a8a305896b9d7752ae