[INFO] crate futures-backoff 0.1.0 is already in cache
[INFO] testing futures-backoff-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate futures-backoff 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate futures-backoff 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-backoff 0.1.0
[INFO] finished tweaking crates.io crate futures-backoff 0.1.0
[INFO] tweaked toml for crates.io crate futures-backoff 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1c20f446cdde0a0b9dedeb5afa379ba2e9931c7f157072786d75174e51f82aa
[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" "d1c20f446cdde0a0b9dedeb5afa379ba2e9931c7f157072786d75174e51f82aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1c20f446cdde0a0b9dedeb5afa379ba2e9931c7f157072786d75174e51f82aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c20f446cdde0a0b9dedeb5afa379ba2e9931c7f157072786d75174e51f82aa", kill_on_drop: false }`
[INFO] [stdout] d1c20f446cdde0a0b9dedeb5afa379ba2e9931c7f157072786d75174e51f82aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9dc82a531cb2f40103ac2f152f21e38c6e58fdcecc6add80ae7454a6d330a21
[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" "d9dc82a531cb2f40103ac2f152f21e38c6e58fdcecc6add80ae7454a6d330a21", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-timer v0.1.1
[INFO] [stderr]    Compiling futures-backoff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "d9dc82a531cb2f40103ac2f152f21e38c6e58fdcecc6add80ae7454a6d330a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9dc82a531cb2f40103ac2f152f21e38c6e58fdcecc6add80ae7454a6d330a21", kill_on_drop: false }`
[INFO] [stdout] d9dc82a531cb2f40103ac2f152f21e38c6e58fdcecc6add80ae7454a6d330a21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--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] b536753b4f70bd3b4279ece6c563693edc78aadf593914d354dacbad1915cb5e
[INFO] running `Command { std: "docker" "start" "-a" "b536753b4f70bd3b4279ece6c563693edc78aadf593914d354dacbad1915cb5e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling quickcheck v0.6.2
[INFO] [stderr]    Compiling futures-backoff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.30s
[INFO] running `Command { std: "docker" "inspect" "b536753b4f70bd3b4279ece6c563693edc78aadf593914d354dacbad1915cb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b536753b4f70bd3b4279ece6c563693edc78aadf593914d354dacbad1915cb5e", kill_on_drop: false }`
[INFO] [stdout] b536753b4f70bd3b4279ece6c563693edc78aadf593914d354dacbad1915cb5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04372c4d039fecb41a95ce0e62d4087813abfc9b5e10e3446235377aa0d88817
[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" "04372c4d039fecb41a95ce0e62d4087813abfc9b5e10e3446235377aa0d88817", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stdout] running 13 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/futures_backoff-013df57159e3418a
[INFO] [stdout] test strategy::fibonacci_returns_the_fibonacci_series_starting_at_10 ... ok
[INFO] [stdout] test strategy::exponential_returns_max_when_max_less_than_base ... ok
[INFO] [stdout] test strategy::exponential_returns_multiples_of_100ms ... ok
[INFO] [stdout] test strategy::fixed_returns_delay ... ok
[INFO] [stdout] test strategy::exponential_returns_multiples_of_10ms ... ok
[INFO] [stdout] test strategy::jitter::apply_jitter_quickcheck ... ok
[INFO] [stdout] test strategy::fibonacci_stops_increasing_at_max_delay ... ok
[INFO] [stdout] test future::tests::attempts_just_once ... ok
[INFO] [stdout] test strategy::exponential_stops_increasing_at_max_delay ... ok
[INFO] [stdout] test strategy::fibonacci_returns_max_when_max_less_than_base ... ok
[INFO] [stdout] test future::tests::attempts_retry_only_if_given_condition_is_true ... ok
[INFO] [stdout] test future::tests::attempts_until_max_retries_exceeded ... ok
[INFO] [stdout] test future::tests::attempts_until_success ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests futures-backoff
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/strategy/mod.rs - strategy::Strategy (line 29) ... ok
[INFO] [stdout] test src/lib.rs - retry_if (line 87) ... ok
[INFO] [stdout] test src/lib.rs - retry (line 60) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04372c4d039fecb41a95ce0e62d4087813abfc9b5e10e3446235377aa0d88817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04372c4d039fecb41a95ce0e62d4087813abfc9b5e10e3446235377aa0d88817", kill_on_drop: false }`
[INFO] [stdout] 04372c4d039fecb41a95ce0e62d4087813abfc9b5e10e3446235377aa0d88817