[INFO] fetching crate timestamp-stretcher 0.1.0...
[INFO] testing timestamp-stretcher-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate timestamp-stretcher 0.1.0 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate timestamp-stretcher 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timestamp-stretcher 0.1.0
[INFO] finished tweaking crates.io crate timestamp-stretcher 0.1.0
[INFO] tweaked toml for crates.io crate timestamp-stretcher 0.1.0 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gcd v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2159db1dd8352f129884ba6a61bd5a696bdd8d978f921072b537169626399510
[INFO] running `Command { std: "docker" "start" "-a" "2159db1dd8352f129884ba6a61bd5a696bdd8d978f921072b537169626399510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2159db1dd8352f129884ba6a61bd5a696bdd8d978f921072b537169626399510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2159db1dd8352f129884ba6a61bd5a696bdd8d978f921072b537169626399510", kill_on_drop: false }`
[INFO] [stdout] 2159db1dd8352f129884ba6a61bd5a696bdd8d978f921072b537169626399510
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb66c987ffec6e826d133e6b5eda5f859a483476b80f01a01442f052f28532f2
[INFO] running `Command { std: "docker" "start" "-a" "bb66c987ffec6e826d133e6b5eda5f859a483476b80f01a01442f052f28532f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gcd v2.0.1
[INFO] [stderr]    Compiling timestamp-stretcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "bb66c987ffec6e826d133e6b5eda5f859a483476b80f01a01442f052f28532f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb66c987ffec6e826d133e6b5eda5f859a483476b80f01a01442f052f28532f2", kill_on_drop: false }`
[INFO] [stdout] bb66c987ffec6e826d133e6b5eda5f859a483476b80f01a01442f052f28532f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86e870bd2c303323fa857f154b03351983db10fea50491589a11c4dd16889cb1
[INFO] running `Command { std: "docker" "start" "-a" "86e870bd2c303323fa857f154b03351983db10fea50491589a11c4dd16889cb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling timestamp-stretcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "86e870bd2c303323fa857f154b03351983db10fea50491589a11c4dd16889cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e870bd2c303323fa857f154b03351983db10fea50491589a11c4dd16889cb1", kill_on_drop: false }`
[INFO] [stdout] 86e870bd2c303323fa857f154b03351983db10fea50491589a11c4dd16889cb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f49a630cc969a7a2ba7770fc668e9bac8dabc48b442f8412c216266fc59143c9
[INFO] running `Command { std: "docker" "start" "-a" "f49a630cc969a7a2ba7770fc668e9bac8dabc48b442f8412c216266fc59143c9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/timestamp_stretcher-5c90b15f2af05e97)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test floating_point_stretchers_and_real_stretcher_match_for_small_data_and_lots_of_factor_changes ... ok
[INFO] [stdout] test timestamp_stretcher_first_stretching_and_then_compressing_gives_input_mostly ... ok
[INFO] [stdout] test using_floating_points_gives_rounding_errors_for_large_numbers ... ignored
[INFO] [stdout] test using_integers_does_not_give_rounding_errors_for_large_numbers ... ignored
[INFO] [stdout] test timestamp_stretcher_takes_error_into_account_when_rounding ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests timestamp-stretcher
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - TimestampStretcher::new (line 72) ... ok
[INFO] [stdout] test src/lib.rs - TimestampStretcher::stretch (line 120) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f49a630cc969a7a2ba7770fc668e9bac8dabc48b442f8412c216266fc59143c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f49a630cc969a7a2ba7770fc668e9bac8dabc48b442f8412c216266fc59143c9", kill_on_drop: false }`
[INFO] [stdout] f49a630cc969a7a2ba7770fc668e9bac8dabc48b442f8412c216266fc59143c9