[INFO] crate mpris 1.1.0 is already in cache
[INFO] extracting crate mpris 1.1.0 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/mpris/1.1.0
[INFO] extracting crate mpris 1.1.0 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/mpris/1.1.0
[INFO] validating manifest of mpris-1.1.0 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mpris-1.1.0 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mpris-1.1.0
[INFO] finished frobbing mpris-1.1.0
[INFO] frobbed toml for mpris-1.1.0 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/mpris/1.1.0/Cargo.toml
[INFO] started frobbing mpris-1.1.0
[INFO] finished frobbing mpris-1.1.0
[INFO] frobbed toml for mpris-1.1.0 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/mpris/1.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mpris-1.1.0 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/mpris/1.1.0:/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=forbid" "-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4f4b89e523abf772e6e3d1707907cd0a8dbbafd389de4dcfc2c5a728413defa4
[INFO] running `"docker" "start" "-a" "4f4b89e523abf772e6e3d1707907cd0a8dbbafd389de4dcfc2c5a728413defa4"`
[INFO] [stderr]    Compiling derive_is_enum_variant v0.1.1
[INFO] [stderr]    Compiling darling_core v0.4.0
[INFO] [stderr]    Compiling enum-kinds v0.4.1
[INFO] [stderr]    Compiling darling_macro v0.4.0
[INFO] [stderr]    Compiling darling v0.4.0
[INFO] [stderr]    Compiling from_variants_impl v0.3.0
[INFO] [stderr]     Checking from_variants v0.3.0
[INFO] [stderr]     Checking mpris v1.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/player.rs:153:62
[INFO] [stderr]     |
[INFO] [stderr] 153 |         self.set_position_in_microseconds(track_id, position.as_micros())
[INFO] [stderr]     |                                                              ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unstable_name_collisions)] on by default
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_micros(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_micros`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/player.rs:339:26
[INFO] [stderr]     |
[INFO] [stderr] 339 |         self.seek(offset.as_micros() as i64)
[INFO] [stderr]     |                          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_micros(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_micros`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/player.rs:346:28
[INFO] [stderr]     |
[INFO] [stderr] 346 |         self.seek(-(offset.as_micros() as i64))
[INFO] [stderr]     |                            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_micros(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_micros`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/extensions.rs:40:29
[INFO] [stderr]    |
[INFO] [stderr] 40 |         assert_eq!(duration.as_millis(), 5543);
[INFO] [stderr]    |                             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unstable_name_collisions)] on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `extensions::DurationExtensions::as_millis(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/extensions.rs:46:29
[INFO] [stderr]    |
[INFO] [stderr] 46 |         assert_eq!(duration.as_micros(), 5_543_210);
[INFO] [stderr]    |                             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `extensions::DurationExtensions::as_micros(...)` to keep using the current method
[INFO] [stderr]    = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_micros`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/pooled_connection.rs:104:28
[INFO] [stderr]     |
[INFO] [stderr] 104 |                 .map(|d| d.as_millis())
[INFO] [stderr]     |                            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_millis(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/progress.rs:268:51
[INFO] [stderr]     |
[INFO] [stderr] 268 |             PlaybackStatus::Playing => self.age().as_millis() as f64 * self.rate,
[INFO] [stderr]     |                                                   ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_millis(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/player.rs:153:62
[INFO] [stderr]     |
[INFO] [stderr] 153 |         self.set_position_in_microseconds(track_id, position.as_micros())
[INFO] [stderr]     |                                                              ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_micros(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_micros`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/player.rs:339:26
[INFO] [stderr]     |
[INFO] [stderr] 339 |         self.seek(offset.as_micros() as i64)
[INFO] [stderr]     |                          ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_micros(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_micros`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/player.rs:346:28
[INFO] [stderr]     |
[INFO] [stderr] 346 |         self.seek(-(offset.as_micros() as i64))
[INFO] [stderr]     |                            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_micros(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_micros`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/pooled_connection.rs:104:28
[INFO] [stderr]     |
[INFO] [stderr] 104 |                 .map(|d| d.as_millis())
[INFO] [stderr]     |                            ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_millis(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/progress.rs:268:51
[INFO] [stderr]     |
[INFO] [stderr] 268 |             PlaybackStatus::Playing => self.age().as_millis() as f64 * self.rate,
[INFO] [stderr]     |                                                   ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `extensions::DurationExtensions::as_millis(...)` to keep using the current method
[INFO] [stderr]     = help: add #![feature(duration_as_u128)] to the crate attributes to enable `std::time::Duration::as_millis`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'failure::Error::causes': please use the 'iter_chain()' method instead
[INFO] [stderr]   --> examples/get_metadata.rs:11:37
[INFO] [stderr]    |
[INFO] [stderr] 11 |             for (i, cause) in error.causes().enumerate() {
[INFO] [stderr]    |                                     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'mpris::Player::get_metadata_hash': This is an experimental function until full Metadata overhaul in 2.0.
[INFO] [stderr]   --> examples/get_metadata.rs:49:14
[INFO] [stderr]    |
[INFO] [stderr] 49 |             .get_metadata_hash()
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Event`
[INFO] [stderr]  --> examples/events.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | use mpris::{Event, PlayerFinder};
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.05s
[INFO] running `"docker" "inspect" "4f4b89e523abf772e6e3d1707907cd0a8dbbafd389de4dcfc2c5a728413defa4"`
[INFO] running `"docker" "rm" "-f" "4f4b89e523abf772e6e3d1707907cd0a8dbbafd389de4dcfc2c5a728413defa4"`
[INFO] [stdout] 4f4b89e523abf772e6e3d1707907cd0a8dbbafd389de4dcfc2c5a728413defa4