[INFO] crate cb_fut 0.2.1 is already in cache
[INFO] testing cb_fut-0.2.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate cb_fut 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cb_fut 0.2.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cb_fut 0.2.1
[INFO] finished tweaking crates.io crate cb_fut 0.2.1
[INFO] tweaked toml for crates.io crate cb_fut 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] 4516fcea0aa1e43001e53724fd76c0c50eda52de81c97d73d53a5ce4736986ec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4516fcea0aa1e43001e53724fd76c0c50eda52de81c97d73d53a5ce4736986ec"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.19
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling pin-project v0.4.19
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling cb_fut v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.60s
[INFO] running `"docker" "inspect" "4516fcea0aa1e43001e53724fd76c0c50eda52de81c97d73d53a5ce4736986ec"`
[INFO] running `"docker" "rm" "-f" "4516fcea0aa1e43001e53724fd76c0c50eda52de81c97d73d53a5ce4736986ec"`
[INFO] [stdout] 4516fcea0aa1e43001e53724fd76c0c50eda52de81c97d73d53a5ce4736986ec
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4770eef319042cc42866817572e963ff94d68eb0b43de7fd8cefd2a6e8807afa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4770eef319042cc42866817572e963ff94d68eb0b43de7fd8cefd2a6e8807afa"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cb_fut v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/lib.rs:666:71
[INFO] [stderr]     |
[INFO] [stderr] 666 |         futures::executor::block_on(once_blocked!(func(2 + 3, ->() -> {3i32})));
[INFO] [stderr]     |                                                                       ^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/lib.rs:728:64
[INFO] [stderr]     |
[INFO] [stderr] 728 |         futures::executor::block_on(once_blocked!(func(->() -> {3i32}, 2 + 3)));
[INFO] [stderr]     |                                                                ^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.56s
[INFO] running `"docker" "inspect" "4770eef319042cc42866817572e963ff94d68eb0b43de7fd8cefd2a6e8807afa"`
[INFO] running `"docker" "rm" "-f" "4770eef319042cc42866817572e963ff94d68eb0b43de7fd8cefd2a6e8807afa"`
[INFO] [stdout] 4770eef319042cc42866817572e963ff94d68eb0b43de7fd8cefd2a6e8807afa
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.44.0" "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] 72431b8f716e874556cdbbb83f8e89dceb00240349810b294742f57c9ce4d973
[INFO] running `"docker" "start" "-a" "72431b8f716e874556cdbbb83f8e89dceb00240349810b294742f57c9ce4d973"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/lib.rs:666:71
[INFO] [stderr]     |
[INFO] [stderr] 666 |         futures::executor::block_on(once_blocked!(func(2 + 3, ->() -> {3i32})));
[INFO] [stderr]     |                                                                       ^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/lib.rs:728:64
[INFO] [stderr]     |
[INFO] [stderr] 728 |         futures::executor::block_on(once_blocked!(func(->() -> {3i32}, 2 + 3)));
[INFO] [stderr]     |                                                                ^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cb_fut-d2b6c380e2db6171
[INFO] [stderr] [src/lib.rs:766] "Ok !" = "Ok !"
[INFO] [stdout] 
[INFO] [stderr] [src/lib.rs:661] "Ok !" = "Ok !"
[INFO] [stdout] running 21 tests
[INFO] [stderr] [src/lib.rs:673] "Ok !" = "Ok !"
[INFO] [stdout] test tests::test_once_blocked_default_infix_no_args ... ok
[INFO] [stderr] [src/lib.rs:630] "Ok !" = "Ok !"
[INFO] [stdout] test tests::test_once_blocked_default_postfix_no_args ... ok
[INFO] [stdout] test tests::test_stream_infix ... ok
[INFO] [stdout] test tests::test_stream_blocked_infix ... ok
[INFO] [stdout] test tests::test_once_blocked_postfix_with_logic ... ok
[INFO] [stdout] test tests::test_stream_blocked_postfix ... ok
[INFO] [stdout] test tests::test_stream_prefix_no_args ... ok
[INFO] [stdout] test tests::test_stream_prefix ... ok
[INFO] [stdout] test tests::test_stream_postfix ... ok
[INFO] [stdout] test tests::test_stream_blocked_prefix ... ok
[INFO] [stderr] [src/lib.rs:710] "Default shutdown.." = "Default shutdown.."
[INFO] [stdout] test tests::test_once_blocked_default_prefix ... ok
[INFO] [stderr] [src/lib.rs:723] "Ok !" = "Ok !"
[INFO] [stderr] [src/lib.rs:648] "Default shutdown.." = "Default shutdown.."
[INFO] [stderr] [src/lib.rs:751] "Ok !" = "Ok !"
[INFO] [stderr] [src/lib.rs:735] "Ok !" = "Ok !"
[INFO] [stderr] [src/lib.rs:692] "Ok !" = "Ok !"
[INFO] [stdout] test tests::test_once_blocked_postfix ... ok
[INFO] [stdout] test tests::test_once_blocked_default_prefix_no_args ... ok
[INFO] [stdout] test tests::test_once_blocked_default_postfix ... ok
[INFO] [stdout] test tests::test_once_blocked_default_infix ... ok
[INFO] [stdout] test tests::test_once_blocked_infix ... ok
[INFO] [stdout] test tests::test_once_blocked_prefix ... ok
[INFO] [stdout] test tests::test_once_postfix_no_args ... ok
[INFO] [stderr]    Doc-tests cb_fut
[INFO] [stdout] test tests::test_once_infix ... ok
[INFO] [stdout] test tests::test_once_postfix ... ok
[INFO] [stdout] test tests::test_once_prefix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - stream (line 250) ... ok
[INFO] [stdout] test src/lib.rs - stream_blocked (line 318) ... ok
[INFO] [stdout] test src/lib.rs - once (line 65) ... ok
[INFO] [stdout] test src/lib.rs - once_blocked (line 132) ... ok
[INFO] [stdout] test src/lib.rs - once_blocked (line 147) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "72431b8f716e874556cdbbb83f8e89dceb00240349810b294742f57c9ce4d973"`
[INFO] running `"docker" "rm" "-f" "72431b8f716e874556cdbbb83f8e89dceb00240349810b294742f57c9ce4d973"`
[INFO] [stdout] 72431b8f716e874556cdbbb83f8e89dceb00240349810b294742f57c9ce4d973