[INFO] fetching crate kepler_backoff 0.1.0...
[INFO] testing kepler_backoff-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate kepler_backoff 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate kepler_backoff 0.1.0
[INFO] finished tweaking crates.io crate kepler_backoff 0.1.0
[INFO] tweaked toml for crates.io crate kepler_backoff 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kepler_backoff 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d0831261761b5c429665a5837e1a9295ae6405ce44ebb4b68e9bcee66d5b5d9
[INFO] running `Command { std: "docker" "start" "-a" "1d0831261761b5c429665a5837e1a9295ae6405ce44ebb4b68e9bcee66d5b5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d0831261761b5c429665a5837e1a9295ae6405ce44ebb4b68e9bcee66d5b5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d0831261761b5c429665a5837e1a9295ae6405ce44ebb4b68e9bcee66d5b5d9", kill_on_drop: false }`
[INFO] [stdout] 1d0831261761b5c429665a5837e1a9295ae6405ce44ebb4b68e9bcee66d5b5d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea520441cb864c3cc0c1ceb357c54d4dc180b0e66309a216ddffef9c2d657201
[INFO] running `Command { std: "docker" "start" "-a" "ea520441cb864c3cc0c1ceb357c54d4dc180b0e66309a216ddffef9c2d657201", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling kepler_backoff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.43s
[INFO] running `Command { std: "docker" "inspect" "ea520441cb864c3cc0c1ceb357c54d4dc180b0e66309a216ddffef9c2d657201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea520441cb864c3cc0c1ceb357c54d4dc180b0e66309a216ddffef9c2d657201", kill_on_drop: false }`
[INFO] [stdout] ea520441cb864c3cc0c1ceb357c54d4dc180b0e66309a216ddffef9c2d657201
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78483f14aea8d15e6214b3a2c1af85877ed9f91788d6c6bc9d4a73078074723c
[INFO] running `Command { std: "docker" "start" "-a" "78483f14aea8d15e6214b3a2c1af85877ed9f91788d6c6bc9d4a73078074723c", kill_on_drop: false }`
[INFO] [stderr]    Compiling kepler_backoff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "78483f14aea8d15e6214b3a2c1af85877ed9f91788d6c6bc9d4a73078074723c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78483f14aea8d15e6214b3a2c1af85877ed9f91788d6c6bc9d4a73078074723c", kill_on_drop: false }`
[INFO] [stdout] 78483f14aea8d15e6214b3a2c1af85877ed9f91788d6c6bc9d4a73078074723c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6851ad8b753d965e038828981dbfc2122e7a56e4f87a6b87e74a2fbf847088dc
[INFO] running `Command { std: "docker" "start" "-a" "6851ad8b753d965e038828981dbfc2122e7a56e4f87a6b87e74a2fbf847088dc", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kepler_backoff-2c16f549fd1a41a6)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test backoff_tests::backoff_duration_can_be_jittered ... ok
[INFO] [stdout] test backoff_tests::backoff_duration_is_capped_at_max_duration ... ok
[INFO] [stdout] test backoff_tests::backoff_reset_can_be_reseted ... ok
[INFO] [stdout] test backoff_tests::backoff_duration_increases_with_attempt_count ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kepler_backoff
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[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" "6851ad8b753d965e038828981dbfc2122e7a56e4f87a6b87e74a2fbf847088dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6851ad8b753d965e038828981dbfc2122e7a56e4f87a6b87e74a2fbf847088dc", kill_on_drop: false }`
[INFO] [stdout] 6851ad8b753d965e038828981dbfc2122e7a56e4f87a6b87e74a2fbf847088dc