[INFO] fetching crate backoff-futures 0.3.2...
[INFO] testing backoff-futures-0.3.2 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate backoff-futures 0.3.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate backoff-futures 0.3.2 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate backoff-futures 0.3.2
[INFO] finished tweaking crates.io crate backoff-futures 0.3.2
[INFO] tweaked toml for crates.io crate backoff-futures 0.3.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backoff v0.2.1
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[INFO] [stdout] e1b5354ff606ef88563233464e23fd20e26ecfd3bdf4f6c7fdc56aaff8742cdc
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[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backoff v0.2.1
[INFO] [stderr]    Compiling backoff-futures v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.80s
[INFO] running `Command { std: "docker" "inspect" "e1b5354ff606ef88563233464e23fd20e26ecfd3bdf4f6c7fdc56aaff8742cdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1b5354ff606ef88563233464e23fd20e26ecfd3bdf4f6c7fdc56aaff8742cdc", kill_on_drop: false }`
[INFO] [stdout] e1b5354ff606ef88563233464e23fd20e26ecfd3bdf4f6c7fdc56aaff8742cdc
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c8ecf5aa2d83786880884c6e6fc876871a90b240d37ce3b4631b3ee2045eaee
[INFO] running `Command { std: "docker" "start" "-a" "5c8ecf5aa2d83786880884c6e6fc876871a90b240d37ce3b4631b3ee2045eaee", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling fastrand v1.4.1
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling isahc v0.9.14
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling lock_api v0.4.4
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[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling spinning_top v0.2.4
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling flume v0.9.2
[INFO] [stderr]    Compiling sluice v0.5.4
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling openssl-sys v0.9.65
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.6+1.43.0
[INFO] [stderr]    Compiling curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling backoff-futures v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:227:10
[INFO] [stdout]     |
[INFO] [stdout] 227 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `BackoffExt::with_backoff`: Use the built-in `backoff::future` async support
[INFO] [stdout]    --> src/lib.rs:168:49
[INFO] [stdout]     |
[INFO] [stdout] 168 |             futures::executor::block_on(do_work.with_backoff(&mut backoff));
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `BackoffExt::with_backoff`: Use the built-in `backoff::future` async support
[INFO] [stdout]    --> src/lib.rs:180:49
[INFO] [stdout]     |
[INFO] [stdout] 180 |             futures::executor::block_on(do_work.with_backoff(&mut backoff));
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `BackoffExt::with_backoff`: Use the built-in `backoff::future` async support
[INFO] [stdout]    --> src/lib.rs:195:49
[INFO] [stdout]     |
[INFO] [stdout] 195 |             futures::executor::block_on(do_work.with_backoff(&mut backoff));
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `BackoffExt::with_backoff`: Use the built-in `backoff::future` async support
[INFO] [stdout]    --> src/lib.rs:207:49
[INFO] [stdout]     |
[INFO] [stdout] 207 |             futures::executor::block_on(do_work.with_backoff(&mut backoff));
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `BackoffExt::with_backoff_notify`: Use the built-in `backoff::future` async support
[INFO] [stdout]    --> src/lib.rs:238:47
[INFO] [stdout]     |
[INFO] [stdout] 238 |         let result = runtime.block_on(do_work.with_backoff_notify(&mut backoff, |e, d| {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 23.91s
[INFO] running `Command { std: "docker" "inspect" "5c8ecf5aa2d83786880884c6e6fc876871a90b240d37ce3b4631b3ee2045eaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c8ecf5aa2d83786880884c6e6fc876871a90b240d37ce3b4631b3ee2045eaee", kill_on_drop: false }`
[INFO] [stdout] 5c8ecf5aa2d83786880884c6e6fc876871a90b240d37ce3b4631b3ee2045eaee
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 03021a4760f6003c274348b9ba8d62d1888a8162bd858347abb89dbd7d18f095
[INFO] running `Command { std: "docker" "start" "-a" "03021a4760f6003c274348b9ba8d62d1888a8162bd858347abb89dbd7d18f095", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/lib.rs:227:10
[INFO] [stderr]     |
[INFO] [stderr] 227 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `BackoffExt::with_backoff`: Use the built-in `backoff::future` async support
[INFO] [stderr]    --> src/lib.rs:168:49
[INFO] [stderr]     |
[INFO] [stderr] 168 |             futures::executor::block_on(do_work.with_backoff(&mut backoff));
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `BackoffExt::with_backoff`: Use the built-in `backoff::future` async support
[INFO] [stderr]    --> src/lib.rs:180:49
[INFO] [stderr]     |
[INFO] [stderr] 180 |             futures::executor::block_on(do_work.with_backoff(&mut backoff));
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `BackoffExt::with_backoff`: Use the built-in `backoff::future` async support
[INFO] [stderr]    --> src/lib.rs:195:49
[INFO] [stderr]     |
[INFO] [stderr] 195 |             futures::executor::block_on(do_work.with_backoff(&mut backoff));
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `BackoffExt::with_backoff`: Use the built-in `backoff::future` async support
[INFO] [stderr]    --> src/lib.rs:207:49
[INFO] [stderr]     |
[INFO] [stderr] 207 |             futures::executor::block_on(do_work.with_backoff(&mut backoff));
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `BackoffExt::with_backoff_notify`: Use the built-in `backoff::future` async support
[INFO] [stderr]    --> src/lib.rs:238:47
[INFO] [stderr]     |
[INFO] [stderr] 238 |         let result = runtime.block_on(do_work.with_backoff_notify(&mut backoff, |e, d| {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/backoff_futures-7476f4fa169539e4)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_with_closure_when_future_fails_with_permanent_error ... ok
[INFO] [stdout] test tests::test_when_future_succeeds ... ok
[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_with_async_fn_when_future_fails_for_some_time ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[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; finished in 0.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "03021a4760f6003c274348b9ba8d62d1888a8162bd858347abb89dbd7d18f095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03021a4760f6003c274348b9ba8d62d1888a8162bd858347abb89dbd7d18f095", kill_on_drop: false }`
[INFO] [stdout] 03021a4760f6003c274348b9ba8d62d1888a8162bd858347abb89dbd7d18f095