[INFO] fetching crate backoff-tower 0.1.6...
[INFO] testing backoff-tower-0.1.6 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate backoff-tower 0.1.6 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate backoff-tower 0.1.6
[INFO] finished tweaking crates.io crate backoff-tower 0.1.6
[INFO] tweaked toml for crates.io crate backoff-tower 0.1.6 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate backoff-tower 0.1.6 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 98 packages to latest compatible versions
[INFO] [stderr]       Adding async-io v1.13.0 (available: v2.6.0)
[INFO] [stderr]       Adding tower v0.4.13 (available: v0.5.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20c5e41c9ac4aa51b5fce49a3b1c4d424cb5a86fde1f8f5a9059480c62a4fc18
[INFO] running `Command { std: "docker" "start" "-a" "20c5e41c9ac4aa51b5fce49a3b1c4d424cb5a86fde1f8f5a9059480c62a4fc18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20c5e41c9ac4aa51b5fce49a3b1c4d424cb5a86fde1f8f5a9059480c62a4fc18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c5e41c9ac4aa51b5fce49a3b1c4d424cb5a86fde1f8f5a9059480c62a4fc18", kill_on_drop: false }`
[INFO] [stdout] 20c5e41c9ac4aa51b5fce49a3b1c4d424cb5a86fde1f8f5a9059480c62a4fc18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 733116339c7bb29317b64d9e949c5ea2edef76954c143fbcb85c0ac716d6992b
[INFO] running `Command { std: "docker" "start" "-a" "733116339c7bb29317b64d9e949c5ea2edef76954c143fbcb85c0ac716d6992b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling backoff-tower v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.63s
[INFO] running `Command { std: "docker" "inspect" "733116339c7bb29317b64d9e949c5ea2edef76954c143fbcb85c0ac716d6992b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "733116339c7bb29317b64d9e949c5ea2edef76954c143fbcb85c0ac716d6992b", kill_on_drop: false }`
[INFO] [stdout] 733116339c7bb29317b64d9e949c5ea2edef76954c143fbcb85c0ac716d6992b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f22a7a8894a729343248507b7d12da297c53ed3ec15534f383ec3ba2043df88
[INFO] running `Command { std: "docker" "start" "-a" "8f22a7a8894a729343248507b7d12da297c53ed3ec15534f383ec3ba2043df88", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling backoff-tower v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "8f22a7a8894a729343248507b7d12da297c53ed3ec15534f383ec3ba2043df88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f22a7a8894a729343248507b7d12da297c53ed3ec15534f383ec3ba2043df88", kill_on_drop: false }`
[INFO] [stdout] 8f22a7a8894a729343248507b7d12da297c53ed3ec15534f383ec3ba2043df88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f3c1d953cfbcb0e92772fddae67193d235f7266c03bff3530bb59c2a916f314
[INFO] running `Command { std: "docker" "start" "-a" "6f3c1d953cfbcb0e92772fddae67193d235f7266c03bff3530bb59c2a916f314", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/backoff_tower-10734aa852f58b96)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test backoff_layer::tests::subsequent_retires_have_different_wait_periods ... ok
[INFO] [stderr]    Doc-tests backoff_tower
[INFO] [stdout] test backoff_layer::tests::retries_work ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6f3c1d953cfbcb0e92772fddae67193d235f7266c03bff3530bb59c2a916f314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3c1d953cfbcb0e92772fddae67193d235f7266c03bff3530bb59c2a916f314", kill_on_drop: false }`
[INFO] [stdout] 6f3c1d953cfbcb0e92772fddae67193d235f7266c03bff3530bb59c2a916f314