[INFO] fetching crate rbl_circular_buffer 0.1.2...
[INFO] testing rbl_circular_buffer-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rbl_circular_buffer 0.1.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rbl_circular_buffer 0.1.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rbl_circular_buffer 0.1.2
[INFO] finished tweaking crates.io crate rbl_circular_buffer 0.1.2
[INFO] tweaked toml for crates.io crate rbl_circular_buffer 0.1.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 2d040e14f779aacb5ce1bc2eacc182470f60da164827b6084fb45ab828203c66
[INFO] running `Command { std: "docker" "start" "-a" "2d040e14f779aacb5ce1bc2eacc182470f60da164827b6084fb45ab828203c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d040e14f779aacb5ce1bc2eacc182470f60da164827b6084fb45ab828203c66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d040e14f779aacb5ce1bc2eacc182470f60da164827b6084fb45ab828203c66", kill_on_drop: false }`
[INFO] [stdout] 2d040e14f779aacb5ce1bc2eacc182470f60da164827b6084fb45ab828203c66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] 2065d5bebb94e3577c42bc07c515e81fdb054b9835c783d15b60067cbeed031a
[INFO] running `Command { std: "docker" "start" "-a" "2065d5bebb94e3577c42bc07c515e81fdb054b9835c783d15b60067cbeed031a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbl_circular_buffer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "2065d5bebb94e3577c42bc07c515e81fdb054b9835c783d15b60067cbeed031a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2065d5bebb94e3577c42bc07c515e81fdb054b9835c783d15b60067cbeed031a", kill_on_drop: false }`
[INFO] [stdout] 2065d5bebb94e3577c42bc07c515e81fdb054b9835c783d15b60067cbeed031a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f97922bc5338fb59672a596ecdbbe43599e0ff358b9c2811ab2d3840f13a6e7
[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" "7f97922bc5338fb59672a596ecdbbe43599e0ff358b9c2811ab2d3840f13a6e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling proptest v0.9.6
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling rbl_circular_buffer v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 42.62s
[INFO] running `Command { std: "docker" "inspect" "7f97922bc5338fb59672a596ecdbbe43599e0ff358b9c2811ab2d3840f13a6e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f97922bc5338fb59672a596ecdbbe43599e0ff358b9c2811ab2d3840f13a6e7", kill_on_drop: false }`
[INFO] [stdout] 7f97922bc5338fb59672a596ecdbbe43599e0ff358b9c2811ab2d3840f13a6e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf9d15f939ac935bf0b004553aab2bbffb0935b327686fbf3f7406abc8c41e6d
[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" "cf9d15f939ac935bf0b004553aab2bbffb0935b327686fbf3f7406abc8c41e6d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rbl_circular_buffer-aa47b5bbd963e586
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::copy_works_as_expected ... ok
[INFO] [stdout] test tests::adding_to_size_one_works ... ok
[INFO] [stdout] test tests::empty_buffer_has_len_zero ... ok
[INFO] [stdout] test tests::insert_one_element_and_removing_it ... ok
[INFO] [stdout] test tests::fast_fill_test1 ... ok
[INFO] [stdout] test tests::insert_one_element_return_len_minus_one ... ok
[INFO] [stdout] test tests::removing_more_element_than_capacity ... ok
[INFO] [stdout] test tests::fast_fill_test2 ... ok
[INFO] [stdout] test tests::test_clone ... ok
[INFO] [stdout] test tests::test_display ... ok
[INFO] [stdout] test tests::try_to_fill_on_full_vector ... ok
[INFO] [stdout] test tests::insert_too_many_elements_will_return_zero_empty_spots ... ok
[INFO] [stdout] test tests::size_2_adding_3_remove_2_add_1_remove_0 ... ok
[INFO] [stdout] test tests::size_2_adding_to_size_2 ... ok
[INFO] [stdout] test tests::the_len_of_the_buffer_is_always_between_0_and_the_max_requested ... ok
[INFO] [stdout] test tests::fast_fill_vs_fill ... ok
[INFO] [stdout] test tests::keep_track_of_len ... ok
[INFO] [stderr]    Doc-tests rbl_circular_buffer
[INFO] [stdout] test tests::keep_track_of_values ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 44) ... ok
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] test src/lib.rs - (line 69) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cf9d15f939ac935bf0b004553aab2bbffb0935b327686fbf3f7406abc8c41e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9d15f939ac935bf0b004553aab2bbffb0935b327686fbf3f7406abc8c41e6d", kill_on_drop: false }`
[INFO] [stdout] cf9d15f939ac935bf0b004553aab2bbffb0935b327686fbf3f7406abc8c41e6d