[INFO] crate ripple 0.0.1 is already in cache
[INFO] extracting crate ripple 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/ripple/0.0.1
[INFO] extracting crate ripple 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ripple/0.0.1
[INFO] validating manifest of ripple-0.0.1 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 ripple-0.0.1 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 ripple-0.0.1
[INFO] finished frobbing ripple-0.0.1
[INFO] frobbed toml for ripple-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ripple/0.0.1/Cargo.toml
[INFO] started frobbing ripple-0.0.1
[INFO] finished frobbing ripple-0.0.1
[INFO] frobbed toml for ripple-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ripple/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 ripple-0.0.1 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ripple/0.0.1:/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] ac7746b1c05c84ac3c6d01bc8084c307d96577eb4ab334bc61981ee03aae6432
[INFO] running `"docker" "start" "-a" "ac7746b1c05c84ac3c6d01bc8084c307d96577eb4ab334bc61981ee03aae6432"`
[INFO] [stderr]    Compiling ripple v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `header_bytes`
[INFO] [stderr]   --> src/lib.rs:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub fn process_header(header_bytes: &[u8]) -> Result<FileInfo, i32> {
[INFO] [stderr]    |                       ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_header_bytes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut file_info = FileInfo::default();
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `file_size`
[INFO] [stderr]   --> src/lib.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     file_size: u32,      // total file size
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `data_size`
[INFO] [stderr]   --> src/lib.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     data_size: u32,      // size of audio data
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `data_offset`
[INFO] [stderr]   --> src/lib.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     data_offset: u32,    // offset of start of audio data in file
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `format`
[INFO] [stderr]   --> src/lib.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     format: AudioFormat, // format type. 1-PCM, 3-IEEE float, 6-8bit A law, 7-8bit mu law
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `num_channels`
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     num_channels: u8,    // no.of channels
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sample_rate`
[INFO] [stderr]   --> src/lib.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     sample_rate: u32,    // sampling rate (blocks per second)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `bits_per_sample`
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     bits_per_sample: u8  // bits per sample, 8- 8bits, 16- 16 bits etc
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `"docker" "inspect" "ac7746b1c05c84ac3c6d01bc8084c307d96577eb4ab334bc61981ee03aae6432"`
[INFO] running `"docker" "rm" "-f" "ac7746b1c05c84ac3c6d01bc8084c307d96577eb4ab334bc61981ee03aae6432"`
[INFO] [stdout] ac7746b1c05c84ac3c6d01bc8084c307d96577eb4ab334bc61981ee03aae6432
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ripple/0.0.1:/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] fa8818e960d11c20fe64f9b7533f131d22f5923f8cffd7176769344b8fdac9ea
[INFO] running `"docker" "start" "-a" "fa8818e960d11c20fe64f9b7533f131d22f5923f8cffd7176769344b8fdac9ea"`
[INFO] [stderr]    Compiling ripple v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `header_bytes`
[INFO] [stderr]   --> src/lib.rs:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub fn process_header(header_bytes: &[u8]) -> Result<FileInfo, i32> {
[INFO] [stderr]    |                       ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_header_bytes`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut file_info = FileInfo::default();
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `file_size`
[INFO] [stderr]   --> src/lib.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     file_size: u32,      // total file size
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `data_size`
[INFO] [stderr]   --> src/lib.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     data_size: u32,      // size of audio data
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `data_offset`
[INFO] [stderr]   --> src/lib.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     data_offset: u32,    // offset of start of audio data in file
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `format`
[INFO] [stderr]   --> src/lib.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     format: AudioFormat, // format type. 1-PCM, 3-IEEE float, 6-8bit A law, 7-8bit mu law
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `num_channels`
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     num_channels: u8,    // no.of channels
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `sample_rate`
[INFO] [stderr]   --> src/lib.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     sample_rate: u32,    // sampling rate (blocks per second)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `bits_per_sample`
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     bits_per_sample: u8  // bits per sample, 8- 8bits, 16- 16 bits etc
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "fa8818e960d11c20fe64f9b7533f131d22f5923f8cffd7176769344b8fdac9ea"`
[INFO] running `"docker" "rm" "-f" "fa8818e960d11c20fe64f9b7533f131d22f5923f8cffd7176769344b8fdac9ea"`
[INFO] [stdout] fa8818e960d11c20fe64f9b7533f131d22f5923f8cffd7176769344b8fdac9ea
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/ripple/0.0.1:/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] 331b98a83e9e7a94323bfafe562a4a395b61277235dfc2e50d8137606f29d3df
[INFO] running `"docker" "start" "-a" "331b98a83e9e7a94323bfafe562a4a395b61277235dfc2e50d8137606f29d3df"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ripple-2771406262e04b60
[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 ripple
[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" "331b98a83e9e7a94323bfafe562a4a395b61277235dfc2e50d8137606f29d3df"`
[INFO] running `"docker" "rm" "-f" "331b98a83e9e7a94323bfafe562a4a395b61277235dfc2e50d8137606f29d3df"`
[INFO] [stdout] 331b98a83e9e7a94323bfafe562a4a395b61277235dfc2e50d8137606f29d3df