[INFO] crate volume 0.4.0 is already in cache
[INFO] extracting crate volume 0.4.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/volume/0.4.0
[INFO] extracting crate volume 0.4.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/volume/0.4.0
[INFO] validating manifest of volume-0.4.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of volume-0.4.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing volume-0.4.0
[INFO] finished frobbing volume-0.4.0
[INFO] frobbed toml for volume-0.4.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/volume/0.4.0/Cargo.toml
[INFO] started frobbing volume-0.4.0
[INFO] finished frobbing volume-0.4.0
[INFO] frobbed toml for volume-0.4.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/volume/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing volume-0.4.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/volume/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2dea45700bfa6e7b7030e0344cc63b4d0fcfa85b48aa7d8790fafa7890c63e8a
[INFO] running `"docker" "start" "-a" "2dea45700bfa6e7b7030e0344cc63b4d0fcfa85b48aa7d8790fafa7890c63e8a"`
[INFO] [stderr]    Compiling sample v0.6.2
[INFO] [stderr]    Compiling petgraph v0.2.10
[INFO] [stderr]    Compiling time_calc v0.11.1
[INFO] [stderr]    Compiling daggy v0.4.1
[INFO] [stderr]    Compiling dsp-chain v0.13.1
[INFO] [stderr]    Compiling volume v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Frame`
[INFO] [stderr]   --> src/lib.rs:58:19
[INFO] [stderr]    |
[INFO] [stderr] 58 |         use dsp::{Frame, Sample};
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.18s
[INFO] running `"docker" "inspect" "2dea45700bfa6e7b7030e0344cc63b4d0fcfa85b48aa7d8790fafa7890c63e8a"`
[INFO] running `"docker" "rm" "-f" "2dea45700bfa6e7b7030e0344cc63b4d0fcfa85b48aa7d8790fafa7890c63e8a"`
[INFO] [stdout] 2dea45700bfa6e7b7030e0344cc63b4d0fcfa85b48aa7d8790fafa7890c63e8a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/volume/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1fe91939ef162746dceb7046e4d0f9d055ee56ed665797272d7a0e479c068835
[INFO] running `"docker" "start" "-a" "1fe91939ef162746dceb7046e4d0f9d055ee56ed665797272d7a0e479c068835"`
[INFO] [stderr]    Compiling volume v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Frame`
[INFO] [stderr]   --> src/lib.rs:58:19
[INFO] [stderr]    |
[INFO] [stderr] 58 |         use dsp::{Frame, Sample};
[INFO] [stderr]    |                   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "1fe91939ef162746dceb7046e4d0f9d055ee56ed665797272d7a0e479c068835"`
[INFO] running `"docker" "rm" "-f" "1fe91939ef162746dceb7046e4d0f9d055ee56ed665797272d7a0e479c068835"`
[INFO] [stdout] 1fe91939ef162746dceb7046e4d0f9d055ee56ed665797272d7a0e479c068835
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/volume/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] b5a2ac02ff57a3b9a69ff6ce46e732bc7d2f86a064c3688d33e96314c71a5fef
[INFO] running `"docker" "start" "-a" "b5a2ac02ff57a3b9a69ff6ce46e732bc7d2f86a064c3688d33e96314c71a5fef"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/volume-87d63a62f767d2a2
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests volume
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b5a2ac02ff57a3b9a69ff6ce46e732bc7d2f86a064c3688d33e96314c71a5fef"`
[INFO] running `"docker" "rm" "-f" "b5a2ac02ff57a3b9a69ff6ce46e732bc7d2f86a064c3688d33e96314c71a5fef"`
[INFO] [stdout] b5a2ac02ff57a3b9a69ff6ce46e732bc7d2f86a064c3688d33e96314c71a5fef