[INFO] updating cached repository xeals/subs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xeals/subs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xeals/subs" "work/ex/beta-1.37-6/sources/1.36.0/gh/xeals/subs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/xeals/subs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xeals/subs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xeals/subs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xeals/subs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 83b279cffd54da4d8feef9e8318ec89a86ce30fe
[INFO] sha for GitHub repo xeals/subs: 83b279cffd54da4d8feef9e8318ec89a86ce30fe
[INFO] validating manifest of xeals/subs 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 xeals/subs 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 xeals/subs
[INFO] removed path dependency sunk from xeals/subs
[INFO] finished frobbing xeals/subs
[INFO] frobbed toml for xeals/subs written to work/ex/beta-1.37-6/sources/1.36.0/gh/xeals/subs/Cargo.toml
[INFO] started frobbing xeals/subs
[INFO] removed path dependency sunk from xeals/subs
[INFO] finished frobbing xeals/subs
[INFO] frobbed toml for xeals/subs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xeals/subs/Cargo.toml
[INFO] crate xeals/subs 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] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/xeals/subs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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 xeals/subs 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-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xeals/subs:/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] 6a04fa5d0f5894e77c3b8b25fc84d4250412fb83ea4254dce8859b3deb65a762
[INFO] running `"docker" "start" "-a" "6a04fa5d0f5894e77c3b8b25fc84d4250412fb83ea4254dce8859b3deb65a762"`
[INFO] [stderr] warning: dependency (sunk) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling gstreamer v0.10.2
[INFO] [stderr]    Compiling muldiv v0.1.1
[INFO] [stderr]    Compiling md5 v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling gstreamer-sys v0.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling unix_socket v0.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling fern v0.5.8
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling flate2 v1.0.9
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling configure_derive v0.1.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling publicsuffix v1.5.2
[INFO] [stderr]    Compiling crossbeam-channel v0.1.3
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling glib v0.4.1
[INFO] [stderr]    Compiling ctrlc v3.1.3
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling structopt v0.1.7
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr] warning[E0596]: cannot borrow `**func` as mutable, as it is behind a `*const` pointer
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gstreamer-0.10.2/src/iterator.rs:439:8
[INFO] [stderr]     |
[INFO] [stderr] 435 |     let func = func as *const &mut (FnMut(T) -> bool);
[INFO] [stderr]     |         ---- help: consider changing this to be a mutable pointer: `*mut &mut dyn std::ops::FnMut(T) -> bool`
[INFO] [stderr] ...
[INFO] [stderr] 439 |     if (*func)(value) {
[INFO] [stderr]     |        ^^^^^^^ `func` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] warning[E0596]: cannot borrow `**func` as mutable, as it is behind a `*const` pointer
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gstreamer-0.10.2/src/iterator.rs:455:5
[INFO] [stderr]     |
[INFO] [stderr] 451 |     let func = func as *const &mut (FnMut(T));
[INFO] [stderr]     |         ---- help: consider changing this to be a mutable pointer: `*mut &mut dyn std::ops::FnMut(T)`
[INFO] [stderr] ...
[INFO] [stderr] 455 |     (*func)(value);
[INFO] [stderr]     |     ^^^^^^^ `func` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] warning[E0596]: cannot borrow `**func` as mutable, as it is behind a `*const` pointer
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gstreamer-0.10.2/src/iterator.rs:473:11
[INFO] [stderr]     |
[INFO] [stderr] 467 |     let func = func as *const &mut (FnMut(U, T) -> Result<U, U>);
[INFO] [stderr]     |         ---- help: consider changing this to be a mutable pointer: `*mut &mut dyn std::ops::FnMut(U, T) -> std::result::Result<U, U>`
[INFO] [stderr] ...
[INFO] [stderr] 473 |     match (*func)(accum.take().unwrap(), value) {
[INFO] [stderr]     |           ^^^^^^^ `func` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling erased-serde v0.3.9
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling cookie_store v0.7.0
[INFO] [stderr]    Compiling configure v0.1.1
[INFO] [stderr]    Compiling reqwest v0.9.19
[INFO] [stderr]    Compiling sunk v0.1.2
[INFO] [stderr]    Compiling subs v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Genre`
[INFO] [stderr]  --> src/daemon.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 | use sunk::{Client, Genre};
[INFO] [stderr]   |                    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error::Error`
[INFO] [stderr]   --> src/player.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use error::Error;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/subcmd.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn load(name: String) -> Result { unimplemented!() }
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]   --> src/subcmd.rs:93:19
[INFO] [stderr]    |
[INFO] [stderr] 93 | pub fn ls_artists(number: usize) -> Result {
[INFO] [stderr]    |                   ^^^^^^ help: consider prefixing with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> src/player.rs:201:21
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 let state = pipe.get_state(gst::CLOCK_TIME_NONE).1;
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_state`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cache_file`
[INFO] [stderr]   --> src/daemon.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     cache_file: PathBuf,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `has_next`
[INFO] [stderr]   --> src/queue.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn has_next(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 02s
[INFO] running `"docker" "inspect" "6a04fa5d0f5894e77c3b8b25fc84d4250412fb83ea4254dce8859b3deb65a762"`
[INFO] running `"docker" "rm" "-f" "6a04fa5d0f5894e77c3b8b25fc84d4250412fb83ea4254dce8859b3deb65a762"`
[INFO] [stdout] 6a04fa5d0f5894e77c3b8b25fc84d4250412fb83ea4254dce8859b3deb65a762
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xeals/subs:/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] 4aa38cb896058582a039418b76c823ca290cdfeff6f0269cae181983bffad3d1
[INFO] running `"docker" "start" "-a" "4aa38cb896058582a039418b76c823ca290cdfeff6f0269cae181983bffad3d1"`
[INFO] [stderr] warning: dependency (sunk) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling subs v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Genre`
[INFO] [stderr]  --> src/daemon.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 | use sunk::{Client, Genre};
[INFO] [stderr]   |                    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error::Error`
[INFO] [stderr]   --> src/player.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use error::Error;
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]   --> src/subcmd.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn load(name: String) -> Result { unimplemented!() }
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]   --> src/subcmd.rs:93:19
[INFO] [stderr]    |
[INFO] [stderr] 93 | pub fn ls_artists(number: usize) -> Result {
[INFO] [stderr]    |                   ^^^^^^ help: consider prefixing with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> src/player.rs:201:21
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 let state = pipe.get_state(gst::CLOCK_TIME_NONE).1;
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_state`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `cache_file`
[INFO] [stderr]   --> src/daemon.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     cache_file: PathBuf,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `has_next`
[INFO] [stderr]   --> src/queue.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn has_next(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "4aa38cb896058582a039418b76c823ca290cdfeff6f0269cae181983bffad3d1"`
[INFO] running `"docker" "rm" "-f" "4aa38cb896058582a039418b76c823ca290cdfeff6f0269cae181983bffad3d1"`
[INFO] [stdout] 4aa38cb896058582a039418b76c823ca290cdfeff6f0269cae181983bffad3d1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/xeals/subs:/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] b2ab1a5a8018936d56ac8bb4d9e03631c82dfedf6c5f4daed89e3dfed8e74b4b
[INFO] running `"docker" "start" "-a" "b2ab1a5a8018936d56ac8bb4d9e03631c82dfedf6c5f4daed89e3dfed8e74b4b"`
[INFO] [stderr] warning: dependency (sunk) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/subs-393dbfffb824132c
[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" "b2ab1a5a8018936d56ac8bb4d9e03631c82dfedf6c5f4daed89e3dfed8e74b4b"`
[INFO] running `"docker" "rm" "-f" "b2ab1a5a8018936d56ac8bb4d9e03631c82dfedf6c5f4daed89e3dfed8e74b4b"`
[INFO] [stdout] b2ab1a5a8018936d56ac8bb4d9e03631c82dfedf6c5f4daed89e3dfed8e74b4b