[INFO] fetching crate b2histogram 1.0.0...
[INFO] testing b2histogram-1.0.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate b2histogram 1.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate b2histogram 1.0.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b2histogram 1.0.0
[INFO] finished tweaking crates.io crate b2histogram 1.0.0
[INFO] tweaked toml for crates.io crate b2histogram 1.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate b2histogram 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] d44d571c7e07b8fcb56e32ef7734bd855d08cad81d73bcf085689360a52c613b
[INFO] running `Command { std: "docker" "start" "-a" "d44d571c7e07b8fcb56e32ef7734bd855d08cad81d73bcf085689360a52c613b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d44d571c7e07b8fcb56e32ef7734bd855d08cad81d73bcf085689360a52c613b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d44d571c7e07b8fcb56e32ef7734bd855d08cad81d73bcf085689360a52c613b", kill_on_drop: false }`
[INFO] [stdout] d44d571c7e07b8fcb56e32ef7734bd855d08cad81d73bcf085689360a52c613b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a8283c26313039bfe2cca8bc07567b5b79cff71a8aa3cccccd7f3e8239180d5
[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" "2a8283c26313039bfe2cca8bc07567b5b79cff71a8aa3cccccd7f3e8239180d5", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling b2histogram v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "2a8283c26313039bfe2cca8bc07567b5b79cff71a8aa3cccccd7f3e8239180d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a8283c26313039bfe2cca8bc07567b5b79cff71a8aa3cccccd7f3e8239180d5", kill_on_drop: false }`
[INFO] [stdout] 2a8283c26313039bfe2cca8bc07567b5b79cff71a8aa3cccccd7f3e8239180d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d61658c178b302173934b0d0a6cc2083538682fd73f0ec1213a1c8dc8348b04f
[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" "d61658c178b302173934b0d0a6cc2083538682fd73f0ec1213a1c8dc8348b04f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling b2histogram v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "d61658c178b302173934b0d0a6cc2083538682fd73f0ec1213a1c8dc8348b04f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d61658c178b302173934b0d0a6cc2083538682fd73f0ec1213a1c8dc8348b04f", kill_on_drop: false }`
[INFO] [stdout] d61658c178b302173934b0d0a6cc2083538682fd73f0ec1213a1c8dc8348b04f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 394ca831a83f3cb6983703997e8dcc443e7ec400bc3d57521ac959c70347fa6a
[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" "394ca831a83f3cb6983703997e8dcc443e7ec400bc3d57521ac959c70347fa6a", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/b2histogram-6b83c3948b66d2aa
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/example-571bdff56fa0ce22
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test-5547037677bcccca
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test test::buckets_with_counts_are_identified ... ok
[INFO] [stdout] test test::one_has_its_own_bucket ... ok
[INFO] [stdout] test test::handle_u64_max_value ... ok
[INFO] [stdout] test test::iterating_buckets_is_successful ... ok
[INFO] [stdout] test test::observation_counts_are_cumulative ... ok
[INFO] [stderr]    Doc-tests b2histogram
[INFO] [stdout] test test::values_equal_to_bucket_end ... ok
[INFO] [stdout] test test::values_equal_to_bucket_begin_plus_one ... ok
[INFO] [stdout] test test::zero_has_its_own_bucket ... ok
[INFO] [stdout] test test::values_equal_to_bucket_begin ... ok
[INFO] [stdout] test test::same_value_doesnt_change_bucket_count ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "394ca831a83f3cb6983703997e8dcc443e7ec400bc3d57521ac959c70347fa6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "394ca831a83f3cb6983703997e8dcc443e7ec400bc3d57521ac959c70347fa6a", kill_on_drop: false }`
[INFO] [stdout] 394ca831a83f3cb6983703997e8dcc443e7ec400bc3d57521ac959c70347fa6a
