[INFO] updating cached repository thiolliere/rodio_debug
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/thiolliere/rodio_debug
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/thiolliere/rodio_debug" "work/ex/beta-1.38-1/sources/1.37.0/gh/thiolliere/rodio_debug"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/thiolliere/rodio_debug'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/thiolliere/rodio_debug" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/thiolliere/rodio_debug"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/thiolliere/rodio_debug'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 11100af886ca184805bc96b8d8e31449d05619ff
[INFO] sha for GitHub repo thiolliere/rodio_debug: 11100af886ca184805bc96b8d8e31449d05619ff
[INFO] validating manifest of thiolliere/rodio_debug on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of thiolliere/rodio_debug on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing thiolliere/rodio_debug
[INFO] finished frobbing thiolliere/rodio_debug
[INFO] frobbed toml for thiolliere/rodio_debug written to work/ex/beta-1.38-1/sources/1.37.0/gh/thiolliere/rodio_debug/Cargo.toml
[INFO] started frobbing thiolliere/rodio_debug
[INFO] finished frobbing thiolliere/rodio_debug
[INFO] frobbed toml for thiolliere/rodio_debug written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/thiolliere/rodio_debug/Cargo.toml
[INFO] crate thiolliere/rodio_debug already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing thiolliere/rodio_debug against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/thiolliere/rodio_debug:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e4988a2423f63bbe21539cd6a8d35203914e6a8224f8c2881006b5e2f6fa535e
[INFO] running `"docker" "start" "-a" "e4988a2423f63bbe21539cd6a8d35203914e6a8224f8c2881006b5e2f6fa535e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures v0.1.13
[INFO] [stderr]    Compiling claxon v0.3.0
[INFO] [stderr]    Compiling ogg v0.4.1
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]    Compiling lewton v0.5.2
[INFO] [stderr]    Compiling cpal v0.4.5
[INFO] [stderr]    Compiling rodio v0.5.0
[INFO] [stderr]    Compiling rodio_debug v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::BufReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.50s
[INFO] running `"docker" "inspect" "e4988a2423f63bbe21539cd6a8d35203914e6a8224f8c2881006b5e2f6fa535e"`
[INFO] running `"docker" "rm" "-f" "e4988a2423f63bbe21539cd6a8d35203914e6a8224f8c2881006b5e2f6fa535e"`
[INFO] [stdout] e4988a2423f63bbe21539cd6a8d35203914e6a8224f8c2881006b5e2f6fa535e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/thiolliere/rodio_debug:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 45c36539f9f93bf922e621b4e71b1dd1296aac6c8cdd163078289dae41d260b5
[INFO] running `"docker" "start" "-a" "45c36539f9f93bf922e621b4e71b1dd1296aac6c8cdd163078289dae41d260b5"`
[INFO] [stderr]    Compiling rodio_debug v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::BufReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::Read;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "45c36539f9f93bf922e621b4e71b1dd1296aac6c8cdd163078289dae41d260b5"`
[INFO] running `"docker" "rm" "-f" "45c36539f9f93bf922e621b4e71b1dd1296aac6c8cdd163078289dae41d260b5"`
[INFO] [stdout] 45c36539f9f93bf922e621b4e71b1dd1296aac6c8cdd163078289dae41d260b5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/thiolliere/rodio_debug:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 29f14f0b5cfde997699045c1526ee1051b784f9e4ce6017b5bf016251bbf60b1
[INFO] running `"docker" "start" "-a" "29f14f0b5cfde997699045c1526ee1051b784f9e4ce6017b5bf016251bbf60b1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rodio_debug-9d68a787350129c5
[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" "29f14f0b5cfde997699045c1526ee1051b784f9e4ce6017b5bf016251bbf60b1"`
[INFO] running `"docker" "rm" "-f" "29f14f0b5cfde997699045c1526ee1051b784f9e4ce6017b5bf016251bbf60b1"`
[INFO] [stdout] 29f14f0b5cfde997699045c1526ee1051b784f9e4ce6017b5bf016251bbf60b1