[INFO] updating cached repository mofeing/compressor-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mofeing/compressor-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mofeing/compressor-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/mofeing/compressor-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mofeing/compressor-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mofeing/compressor-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mofeing/compressor-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mofeing/compressor-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e84e67b985ed2ded941dfece349e509850e0fb59
[INFO] sha for GitHub repo mofeing/compressor-rs: e84e67b985ed2ded941dfece349e509850e0fb59
[INFO] validating manifest of mofeing/compressor-rs 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 mofeing/compressor-rs 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 mofeing/compressor-rs
[INFO] finished frobbing mofeing/compressor-rs
[INFO] frobbed toml for mofeing/compressor-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/mofeing/compressor-rs/Cargo.toml
[INFO] started frobbing mofeing/compressor-rs
[INFO] finished frobbing mofeing/compressor-rs
[INFO] frobbed toml for mofeing/compressor-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mofeing/compressor-rs/Cargo.toml
[INFO] crate mofeing/compressor-rs 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 mofeing/compressor-rs 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mofeing/compressor-rs:/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] ce19ccb55c4eee46a63f3310b219aeb425be0fa296cd1d9ef539ddd940b8eb05
[INFO] running `"docker" "start" "-a" "ce19ccb55c4eee46a63f3310b219aeb425be0fa296cd1d9ef539ddd940b8eb05"`
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling vst v0.0.2
[INFO] [stderr]    Compiling compressor-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 |     env_follower: Box<Follow>,
[INFO] [stderr]    |                       ^^^^^^ help: use `dyn`: `dyn Follow`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/envelope.rs:62:24
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn next(&mut self, frame: f32) -> f32 {
[INFO] [stderr]    |                        ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frames`
[INFO] [stderr]   --> src/envelope.rs:66:30
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn set_attack(&mut self, frames: usize) {
[INFO] [stderr]    |                              ^^^^^^ help: consider prefixing with an underscore: `_frames`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frames`
[INFO] [stderr]   --> src/envelope.rs:70:31
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn set_release(&mut self, frames: usize) {
[INFO] [stderr]    |                               ^^^^^^ help: consider prefixing with an underscore: `_frames`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Rms`
[INFO] [stderr]   --> src/envelope.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub struct Rms {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.92s
[INFO] running `"docker" "inspect" "ce19ccb55c4eee46a63f3310b219aeb425be0fa296cd1d9ef539ddd940b8eb05"`
[INFO] running `"docker" "rm" "-f" "ce19ccb55c4eee46a63f3310b219aeb425be0fa296cd1d9ef539ddd940b8eb05"`
[INFO] [stdout] ce19ccb55c4eee46a63f3310b219aeb425be0fa296cd1d9ef539ddd940b8eb05
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mofeing/compressor-rs:/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] 2efc81fe84daca0750b3a126dcf03cf4acbb0b9570bbedfdf28137cdb3393c81
[INFO] running `"docker" "start" "-a" "2efc81fe84daca0750b3a126dcf03cf4acbb0b9570bbedfdf28137cdb3393c81"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling compressor-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 |     env_follower: Box<Follow>,
[INFO] [stderr]    |                       ^^^^^^ help: use `dyn`: `dyn Follow`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]   --> src/envelope.rs:62:24
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn next(&mut self, frame: f32) -> f32 {
[INFO] [stderr]    |                        ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frames`
[INFO] [stderr]   --> src/envelope.rs:66:30
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn set_attack(&mut self, frames: usize) {
[INFO] [stderr]    |                              ^^^^^^ help: consider prefixing with an underscore: `_frames`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frames`
[INFO] [stderr]   --> src/envelope.rs:70:31
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn set_release(&mut self, frames: usize) {
[INFO] [stderr]    |                               ^^^^^^ help: consider prefixing with an underscore: `_frames`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Rms`
[INFO] [stderr]   --> src/envelope.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub struct Rms {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `"docker" "inspect" "2efc81fe84daca0750b3a126dcf03cf4acbb0b9570bbedfdf28137cdb3393c81"`
[INFO] running `"docker" "rm" "-f" "2efc81fe84daca0750b3a126dcf03cf4acbb0b9570bbedfdf28137cdb3393c81"`
[INFO] [stdout] 2efc81fe84daca0750b3a126dcf03cf4acbb0b9570bbedfdf28137cdb3393c81
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mofeing/compressor-rs:/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] f4738eb99892bf3e5fe84bc90c0e54757a5cfc9ba429acc9bc093c0bd0a8e0bd
[INFO] running `"docker" "start" "-a" "f4738eb99892bf3e5fe84bc90c0e54757a5cfc9ba429acc9bc093c0bd0a8e0bd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/compressor-ad8b88aa741e93bb
[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" "f4738eb99892bf3e5fe84bc90c0e54757a5cfc9ba429acc9bc093c0bd0a8e0bd"`
[INFO] running `"docker" "rm" "-f" "f4738eb99892bf3e5fe84bc90c0e54757a5cfc9ba429acc9bc093c0bd0a8e0bd"`
[INFO] [stdout] f4738eb99892bf3e5fe84bc90c0e54757a5cfc9ba429acc9bc093c0bd0a8e0bd