[INFO] fetching crate loopers-engine 0.2.0...
[INFO] testing loopers-engine-0.2.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate loopers-engine 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate loopers-engine 0.2.0
[INFO] finished tweaking crates.io crate loopers-engine 0.2.0
[INFO] tweaked toml for crates.io crate loopers-engine 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate loopers-engine 0.2.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 132 packages to latest compatible versions
[INFO] [stderr]       Adding atomic v0.5.3 (available: v0.6.1)
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] [stderr]       Adding dirs v3.0.2 (available: v6.0.0)
[INFO] [stderr]       Adding fern v0.6.2 (available: v0.7.1)
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.31)
[INFO] [stderr]       Adding itertools v0.10.5 (available: v0.14.0)
[INFO] [stderr]       Adding proptest v0.10.1 (available: v1.8.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding toml v0.5.11 (available: v0.9.7)
[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-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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8e04e3c905a48f25d23cd8099246504c6dde4c1625f98baae5e889180dd6e26
[INFO] running `Command { std: "docker" "start" "-a" "b8e04e3c905a48f25d23cd8099246504c6dde4c1625f98baae5e889180dd6e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8e04e3c905a48f25d23cd8099246504c6dde4c1625f98baae5e889180dd6e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e04e3c905a48f25d23cd8099246504c6dde4c1625f98baae5e889180dd6e26", kill_on_drop: false }`
[INFO] [stdout] b8e04e3c905a48f25d23cd8099246504c6dde4c1625f98baae5e889180dd6e26
[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" "-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] 6952a488690629d16b7c7aa52a71020241c122b7e45f0610fe5432d7c2ddd8d1
[INFO] running `Command { std: "docker" "start" "-a" "6952a488690629d16b7c7aa52a71020241c122b7e45f0610fe5432d7c2ddd8d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling atomic v0.5.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling csv v1.3.1
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling loopers-common v0.2.0
[INFO] [stderr]    Compiling loopers-engine v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.07s
[INFO] running `Command { std: "docker" "inspect" "6952a488690629d16b7c7aa52a71020241c122b7e45f0610fe5432d7c2ddd8d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6952a488690629d16b7c7aa52a71020241c122b7e45f0610fe5432d7c2ddd8d1", kill_on_drop: false }`
[INFO] [stdout] 6952a488690629d16b7c7aa52a71020241c122b7e45f0610fe5432d7c2ddd8d1
[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" "-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] e70efd597d40075492f43627fd754c6d1310967e7e369cfd5e8ea3b41b2435d9
[INFO] running `Command { std: "docker" "start" "-a" "e70efd597d40075492f43627fd754c6d1310967e7e369cfd5e8ea3b41b2435d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling fern v0.6.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling proptest v0.10.1
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling loopers-engine v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 16.68s
[INFO] running `Command { std: "docker" "inspect" "e70efd597d40075492f43627fd754c6d1310967e7e369cfd5e8ea3b41b2435d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e70efd597d40075492f43627fd754c6d1310967e7e369cfd5e8ea3b41b2435d9", kill_on_drop: false }`
[INFO] [stdout] e70efd597d40075492f43627fd754c6d1310967e7e369cfd5e8ea3b41b2435d9
[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" "-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] fb5019644e602cd2133f5309c30ed920e656a50dc7a5003c9c0576cb0e50cdfb
[INFO] running `Command { std: "docker" "start" "-a" "fb5019644e602cd2133f5309c30ed920e656a50dc7a5003c9c0576cb0e50cdfb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/loopers_engine-6381fb71a27265bf)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test looper::tests::test_transfer_buf ... ok
[INFO] [stdout] test sample::tests::test_overdub_2x ... ok
[INFO] [stdout] test sample::tests::test_record ... ok
[INFO] [stdout] test sample::tests::test_xfade ... ok
[INFO] [stdout] test metronome::tests::test_cycle ... ok
[INFO] [stdout] test trigger::tests::test_beat_trigger ... ok
[INFO] [stdout] test trigger::tests::test_measure_trigger ... ok
[INFO] [stdout] test sample::tests::test_from_mono ... ok
[INFO] [stdout] test sample::tests::test_new ... ok
[INFO] [stdout] test sample::tests::test_overdub ... ok
[INFO] [stdout] test sample::tests::test_overdub_0_5x ... ok
[INFO] [stdout] test looper::tests::test_io ... ok
[INFO] [stdout] test looper::tests::test_new ... ok
[INFO] [stdout] test looper::tests::test_overdub ... ok
[INFO] [stdout] test looper::tests::test_transitions ... ok
[INFO] [stdout] test looper::tests::test_offset ... ok
[INFO] [stdout] test looper::tests::test_non_harmonious_lengths ... ok
[INFO] [stdout] test looper::tests::test_solo ... ok
[INFO] [stdout] test looper::tests::test_serialization ... ok
[INFO] [stdout] test looper::tests::test_post_xfade ... ok
[INFO] [stdout] test looper::tests::test_pre_xfade ... ok
[INFO] [stdout] test trigger::tests::test_measure_trigger_prop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.79s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests loopers_engine
[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" "fb5019644e602cd2133f5309c30ed920e656a50dc7a5003c9c0576cb0e50cdfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb5019644e602cd2133f5309c30ed920e656a50dc7a5003c9c0576cb0e50cdfb", kill_on_drop: false }`
[INFO] [stdout] fb5019644e602cd2133f5309c30ed920e656a50dc7a5003c9c0576cb0e50cdfb