[INFO] fetching crate exponential-backoff 2.1.0...
[INFO] testing exponential-backoff-2.1.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate exponential-backoff 2.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate exponential-backoff 2.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate exponential-backoff 2.1.0
[INFO] tweaked toml for crates.io crate exponential-backoff 2.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate exponential-backoff 2.1.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate exponential-backoff 2.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1de93b68b3216076e4de3984e35d74b22ec31a6411aaef44ec2eba988fc82c9b
[INFO] running `Command { std: "docker" "start" "-a" "1de93b68b3216076e4de3984e35d74b22ec31a6411aaef44ec2eba988fc82c9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1de93b68b3216076e4de3984e35d74b22ec31a6411aaef44ec2eba988fc82c9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1de93b68b3216076e4de3984e35d74b22ec31a6411aaef44ec2eba988fc82c9b", kill_on_drop: false }`
[INFO] [stdout] 1de93b68b3216076e4de3984e35d74b22ec31a6411aaef44ec2eba988fc82c9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 983641fa13f5a61e681281914512f792cf5ed786de0e0a8e414ce99a21b468ef
[INFO] running `Command { std: "docker" "start" "-a" "983641fa13f5a61e681281914512f792cf5ed786de0e0a8e414ce99a21b468ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling exponential-backoff v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "983641fa13f5a61e681281914512f792cf5ed786de0e0a8e414ce99a21b468ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "983641fa13f5a61e681281914512f792cf5ed786de0e0a8e414ce99a21b468ef", kill_on_drop: false }`
[INFO] [stdout] 983641fa13f5a61e681281914512f792cf5ed786de0e0a8e414ce99a21b468ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16dcccc5cf073cb9f51404d348c56810c8d336a080a19077eac5feacfb6820ca
[INFO] running `Command { std: "docker" "start" "-a" "16dcccc5cf073cb9f51404d348c56810c8d336a080a19077eac5feacfb6820ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling exponential-backoff v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "16dcccc5cf073cb9f51404d348c56810c8d336a080a19077eac5feacfb6820ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16dcccc5cf073cb9f51404d348c56810c8d336a080a19077eac5feacfb6820ca", kill_on_drop: false }`
[INFO] [stdout] 16dcccc5cf073cb9f51404d348c56810c8d336a080a19077eac5feacfb6820ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a1e029b10ffa3677e5ef322157143645a7a9617d68351053d35f617c4db30cc6
[INFO] running `Command { std: "docker" "start" "-a" "a1e029b10ffa3677e5ef322157143645a7a9617d68351053d35f617c4db30cc6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/exponential_backoff-5ecd8fb52cff005b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-337821b3efc990a8)
[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] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test first_interval_should_be_min_value ... ok
[INFO] [stdout] test it_handles_max_backoff ... ok
[INFO] [stdout] test it_doesnt_crash ... ok
[INFO] [stdout] test it_handles_no_jitter ... ok
[INFO] [stdout] test it_handles_zero_attempts ... ok
[INFO] [stdout] test it_completes_iter ... ok
[INFO] [stdout] test it_completes_into_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests exponential_backoff
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/lib.rs - Backoff::factor (line 232) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::min (line 99) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::new (line 63) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::set_jitter (line 211) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::jitter (line 192) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::set_factor (line 246) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::new (line 75) ... ok
[INFO] [stdout] test src/lib.rs - Backoff (line 296) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::set_min (line 114) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::max (line 131) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::set_max_attempts (line 177) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::set_max (line 146) ... ok
[INFO] [stdout] test src/lib.rs - Backoff (line 323) ... ok
[INFO] [stdout] test src/lib.rs - &'bBackoff (line 269) ... ok
[INFO] [stdout] test src/lib.rs - Backoff::max_attempts (line 163) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a1e029b10ffa3677e5ef322157143645a7a9617d68351053d35f617c4db30cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1e029b10ffa3677e5ef322157143645a7a9617d68351053d35f617c4db30cc6", kill_on_drop: false }`
[INFO] [stdout] a1e029b10ffa3677e5ef322157143645a7a9617d68351053d35f617c4db30cc6