[INFO] updating cached repository der-On/Children-Audio-Library
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/der-On/Children-Audio-Library
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/der-On/Children-Audio-Library" "work/ex/beta-1.37-6/sources/1.36.0/gh/der-On/Children-Audio-Library"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/der-On/Children-Audio-Library'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/der-On/Children-Audio-Library" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/der-On/Children-Audio-Library"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/der-On/Children-Audio-Library'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c8cf2ff75c6f7d8ba46929e7b3aed891debe255d
[INFO] sha for GitHub repo der-On/Children-Audio-Library: c8cf2ff75c6f7d8ba46929e7b3aed891debe255d
[INFO] validating manifest of der-On/Children-Audio-Library 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 der-On/Children-Audio-Library 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 der-On/Children-Audio-Library
[INFO] finished frobbing der-On/Children-Audio-Library
[INFO] frobbed toml for der-On/Children-Audio-Library written to work/ex/beta-1.37-6/sources/1.36.0/gh/der-On/Children-Audio-Library/Cargo.toml
[INFO] started frobbing der-On/Children-Audio-Library
[INFO] finished frobbing der-On/Children-Audio-Library
[INFO] frobbed toml for der-On/Children-Audio-Library written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/der-On/Children-Audio-Library/Cargo.toml
[INFO] crate der-On/Children-Audio-Library already has a lockfile, it will not be regenerated
[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 der-On/Children-Audio-Library against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/der-On/Children-Audio-Library:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 9d871b770d77ca61785d3be02e255938dc6f5e06fe9f3968e2b5299f68bc3143
[INFO] running `"docker" "start" "-a" "9d871b770d77ca61785d3be02e255938dc6f5e06fe9f3968e2b5299f68bc3143"`
[INFO] [stderr]    Compiling serde v1.0.55
[INFO] [stderr]    Compiling tokio-threadpool v0.1.3
[INFO] [stderr]    Compiling syn v0.13.9
[INFO] [stderr]    Compiling chrono v0.4.2
[INFO] [stderr]    Compiling tokio-fs v0.1.0
[INFO] [stderr]    Compiling tokio v0.1.6
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling serde_derive v1.0.55
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling hyper v0.11.26
[INFO] [stderr]    Compiling serde_json v1.0.17
[INFO] [stderr]    Compiling hyper-staticfile v0.2.0
[INFO] [stderr]    Compiling children-audio-library v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/library.rs:143:14
[INFO] [stderr]     |
[INFO] [stderr] 143 | fn file_size(file: &File) {
[INFO] [stderr]     |              ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `file_size`
[INFO] [stderr]    --> src/library.rs:143:1
[INFO] [stderr]     |
[INFO] [stderr] 143 | fn file_size(file: &File) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_album_cover`
[INFO] [stderr]    --> src/library.rs:170:1
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn is_album_cover(path: &Path) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `lastFmApiKey` should have a snake case name
[INFO] [stderr]   --> src/config.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub lastFmApiKey: String,
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `last_fm_api_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `discogsConsumerKey` should have a snake case name
[INFO] [stderr]   --> src/config.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub discogsConsumerKey: String,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `discogs_consumer_key`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `discogsConsumerSecret` should have a snake case name
[INFO] [stderr]   --> src/config.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub discogsConsumerSecret: String,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `discogs_consumer_secret`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `bluetoothSpeaker` should have a snake case name
[INFO] [stderr]   --> src/config.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub bluetoothSpeaker: String
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `bluetooth_speaker`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `updatedAt` should have a snake case name
[INFO] [stderr]   --> src/library.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub updatedAt: String,
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `updated_at`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/bin/cli.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/cli.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     serde_json::to_writer_pretty(file, &_library);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.63s
[INFO] running `"docker" "inspect" "9d871b770d77ca61785d3be02e255938dc6f5e06fe9f3968e2b5299f68bc3143"`
[INFO] running `"docker" "rm" "-f" "9d871b770d77ca61785d3be02e255938dc6f5e06fe9f3968e2b5299f68bc3143"`
[INFO] [stdout] 9d871b770d77ca61785d3be02e255938dc6f5e06fe9f3968e2b5299f68bc3143
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/der-On/Children-Audio-Library:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b159ab758f072a9ab418cd3e5819fc5f7a2d6972f853f98eb820651f9d184f2f
[INFO] running `"docker" "start" "-a" "b159ab758f072a9ab418cd3e5819fc5f7a2d6972f853f98eb820651f9d184f2f"`
[INFO] [stderr]    Compiling children-audio-library v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/bin/cli.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/cli.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     serde_json::to_writer_pretty(file, &_library);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/library.rs:143:14
[INFO] [stderr]     |
[INFO] [stderr] 143 | fn file_size(file: &File) {
[INFO] [stderr]     |              ^^^^ help: consider prefixing with an underscore: `_file`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `file_size`
[INFO] [stderr]    --> src/library.rs:143:1
[INFO] [stderr]     |
[INFO] [stderr] 143 | fn file_size(file: &File) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_album_cover`
[INFO] [stderr]    --> src/library.rs:170:1
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn is_album_cover(path: &Path) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `lastFmApiKey` should have a snake case name
[INFO] [stderr]   --> src/config.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub lastFmApiKey: String,
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `last_fm_api_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `discogsConsumerKey` should have a snake case name
[INFO] [stderr]   --> src/config.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub discogsConsumerKey: String,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `discogs_consumer_key`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `discogsConsumerSecret` should have a snake case name
[INFO] [stderr]   --> src/config.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub discogsConsumerSecret: String,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `discogs_consumer_secret`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `bluetoothSpeaker` should have a snake case name
[INFO] [stderr]   --> src/config.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub bluetoothSpeaker: String
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `bluetooth_speaker`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `updatedAt` should have a snake case name
[INFO] [stderr]   --> src/library.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub updatedAt: String,
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `updated_at`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `"docker" "inspect" "b159ab758f072a9ab418cd3e5819fc5f7a2d6972f853f98eb820651f9d184f2f"`
[INFO] running `"docker" "rm" "-f" "b159ab758f072a9ab418cd3e5819fc5f7a2d6972f853f98eb820651f9d184f2f"`
[INFO] [stdout] b159ab758f072a9ab418cd3e5819fc5f7a2d6972f853f98eb820651f9d184f2f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/der-On/Children-Audio-Library:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] a87c409715b20e5be955a11a4c323faf1ed3642b078a4d702722dbf9fdd1a7bc
[INFO] running `"docker" "start" "-a" "a87c409715b20e5be955a11a4c323faf1ed3642b078a4d702722dbf9fdd1a7bc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lib-aedabf50504eea1f
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cli-5b4bfb359558d717
[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] [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] [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]      Running /opt/crater/target/debug/deps/server-be858354ba7c2591
[INFO] [stderr]    Doc-tests lib
[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" "a87c409715b20e5be955a11a4c323faf1ed3642b078a4d702722dbf9fdd1a7bc"`
[INFO] running `"docker" "rm" "-f" "a87c409715b20e5be955a11a4c323faf1ed3642b078a4d702722dbf9fdd1a7bc"`
[INFO] [stdout] a87c409715b20e5be955a11a4c323faf1ed3642b078a4d702722dbf9fdd1a7bc