[INFO] crate backoff-futures 0.2.0 is already in cache
[INFO] testing backoff-futures-0.2.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate backoff-futures 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate backoff-futures 0.2.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate backoff-futures 0.2.0
[INFO] finished tweaking crates.io crate backoff-futures 0.2.0
[INFO] tweaked toml for crates.io crate backoff-futures 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 24bd10a2df29997d60e5caf59526548c02a3af5293a3b3d35b25a6fc421c9e78
[INFO] running `"docker" "start" "-a" "24bd10a2df29997d60e5caf59526548c02a3af5293a3b3d35b25a6fc421c9e78"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling instant v0.1.4
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling backoff v0.1.6
[INFO] [stderr]    Compiling backoff-futures v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `"docker" "inspect" "24bd10a2df29997d60e5caf59526548c02a3af5293a3b3d35b25a6fc421c9e78"`
[INFO] running `"docker" "rm" "-f" "24bd10a2df29997d60e5caf59526548c02a3af5293a3b3d35b25a6fc421c9e78"`
[INFO] [stdout] 24bd10a2df29997d60e5caf59526548c02a3af5293a3b3d35b25a6fc421c9e78
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e29198f4c956cea19324ddcd5ddad536fe24e96e6e5c52a2d9468a3b6d916612
[INFO] running `"docker" "start" "-a" "e29198f4c956cea19324ddcd5ddad536fe24e96e6e5c52a2d9468a3b6d916612"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling curl v0.4.29
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling isahc v0.7.6
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling curl-sys v0.4.31+curl-7.70.0
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling sluice v0.4.2
[INFO] [stderr]    Compiling backoff-futures v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 34.41s
[INFO] running `"docker" "inspect" "e29198f4c956cea19324ddcd5ddad536fe24e96e6e5c52a2d9468a3b6d916612"`
[INFO] running `"docker" "rm" "-f" "e29198f4c956cea19324ddcd5ddad536fe24e96e6e5c52a2d9468a3b6d916612"`
[INFO] [stdout] e29198f4c956cea19324ddcd5ddad536fe24e96e6e5c52a2d9468a3b6d916612
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c0f576873f2667f439e6d5878c10d7785ca25af1e74b736406c32cda0c1186a
[INFO] running `"docker" "start" "-a" "0c0f576873f2667f439e6d5878c10d7785ca25af1e74b736406c32cda0c1186a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/backoff_futures-a6ee37a56aa21ae2
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_with_async_fn_when_future_succeeds ... ok
[INFO] [stdout] test tests::test_with_closure_when_future_succeeds ... ok
[INFO] [stdout] test tests::test_when_future_succeeds ... ok
[INFO] [stdout] test tests::test_with_closure_when_future_fails_with_permanent_error ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests backoff-futures
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0c0f576873f2667f439e6d5878c10d7785ca25af1e74b736406c32cda0c1186a"`
[INFO] running `"docker" "rm" "-f" "0c0f576873f2667f439e6d5878c10d7785ca25af1e74b736406c32cda0c1186a"`
[INFO] [stdout] 0c0f576873f2667f439e6d5878c10d7785ca25af1e74b736406c32cda0c1186a