Dec 18 06:34:21.701 INFO checking Manishearth/media-capture against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 06:34:21.701 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/Manishearth/media-capture:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 06:34:22.156 INFO [stdout] 41ec0e75bad028fce073df8756378aa0766cfe6180e603cac7634228653741ca
Dec 18 06:34:22.160 INFO running `"docker" "start" "-a" "41ec0e75bad028fce073df8756378aa0766cfe6180e603cac7634228653741ca"`
Dec 18 06:34:23.900 INFO [stderr]    Compiling gstreamer v0.12.0
Dec 18 06:34:23.900 INFO [stderr]     Checking muldiv v0.2.0
Dec 18 06:34:23.912 INFO [stderr]    Compiling gstreamer-sys v0.6.0
Dec 18 06:34:37.770 INFO [stderr]     Checking media-capture v0.1.0 (/opt/crater/workdir)
Dec 18 06:34:38.436 INFO [stderr] warning: unused imports: `fmt`, `thread`, `time`
Dec 18 06:34:38.437 INFO [stderr]  --> src/main.rs:7:16
Dec 18 06:34:38.437 INFO [stderr]   |
Dec 18 06:34:38.437 INFO [stderr] 7 | use std::{i32, fmt, thread, time};
Dec 18 06:34:38.438 INFO [stderr]   |                ^^^  ^^^^^^  ^^^^
Dec 18 06:34:38.438 INFO [stderr]   |
Dec 18 06:34:38.438 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 06:34:38.438 INFO [stderr] 
Dec 18 06:34:38.532 INFO [stderr] warning: unused imports: `fmt`, `thread`, `time`
Dec 18 06:34:38.533 INFO [stderr]  --> src/main.rs:7:16
Dec 18 06:34:38.533 INFO [stderr]   |
Dec 18 06:34:38.534 INFO [stderr] 7 | use std::{i32, fmt, thread, time};
Dec 18 06:34:38.534 INFO [stderr]   |                ^^^  ^^^^^^  ^^^^
Dec 18 06:34:38.534 INFO [stderr]   |
Dec 18 06:34:38.535 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 06:34:38.535 INFO [stderr] 
Dec 18 06:34:38.644 INFO [stderr] warning: variant is never constructed: `Value`
Dec 18 06:34:38.645 INFO [stderr]   --> src/main.rs:10:5
Dec 18 06:34:38.645 INFO [stderr]    |
Dec 18 06:34:38.645 INFO [stderr] 10 |     Value(T),
Dec 18 06:34:38.646 INFO [stderr]    |     ^^^^^^^^
Dec 18 06:34:38.646 INFO [stderr]    |
Dec 18 06:34:38.646 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:34:38.646 INFO [stderr] 
Dec 18 06:34:38.647 INFO [stderr] warning: struct is never constructed: `ConstrainString`
Dec 18 06:34:38.647 INFO [stderr]   --> src/main.rs:69:1
Dec 18 06:34:38.647 INFO [stderr]    |
Dec 18 06:34:38.647 INFO [stderr] 69 | struct ConstrainString {
Dec 18 06:34:38.648 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.648 INFO [stderr] 
Dec 18 06:34:38.648 INFO [stderr] warning: method is never used: `into_caps_string`
Dec 18 06:34:38.648 INFO [stderr]   --> src/main.rs:75:5
Dec 18 06:34:38.648 INFO [stderr]    |
Dec 18 06:34:38.649 INFO [stderr] 75 |     fn into_caps_string(self) -> String {
Dec 18 06:34:38.649 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.649 INFO [stderr] 
Dec 18 06:34:38.660 INFO [stderr] warning: enum is never used: `ConstrainBool`
Dec 18 06:34:38.661 INFO [stderr]   --> src/main.rs:84:1
Dec 18 06:34:38.661 INFO [stderr]    |
Dec 18 06:34:38.661 INFO [stderr] 84 | enum ConstrainBool {
Dec 18 06:34:38.662 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.662 INFO [stderr] 
Dec 18 06:34:38.696 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:34:38.696 INFO [stderr]    --> src/main.rs:185:9
Dec 18 06:34:38.696 INFO [stderr]     |
Dec 18 06:34:38.697 INFO [stderr] 185 |         pipeline.add_many(&[&self.element, &convert, &sink]);
Dec 18 06:34:38.697 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.697 INFO [stderr]     |
Dec 18 06:34:38.698 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 06:34:38.698 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:34:38.698 INFO [stderr] 
Dec 18 06:34:38.698 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:34:38.699 INFO [stderr]    --> src/main.rs:186:9
Dec 18 06:34:38.699 INFO [stderr]     |
Dec 18 06:34:38.699 INFO [stderr] 186 |         gst::Element::link_many(&[&self.element, &convert, &sink]);
Dec 18 06:34:38.700 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.700 INFO [stderr]     |
Dec 18 06:34:38.700 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:34:38.700 INFO [stderr] 
Dec 18 06:34:38.701 INFO [stderr] warning: unused `gstreamer::StateChangeReturn` that must be used
Dec 18 06:34:38.701 INFO [stderr]    --> src/main.rs:187:9
Dec 18 06:34:38.701 INFO [stderr]     |
Dec 18 06:34:38.702 INFO [stderr] 187 |         pipeline.set_state(gst::State::Playing);
Dec 18 06:34:38.702 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.702 INFO [stderr] 
Dec 18 06:34:38.702 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:34:38.703 INFO [stderr]    --> src/main.rs:192:5
Dec 18 06:34:38.703 INFO [stderr]     |
Dec 18 06:34:38.703 INFO [stderr] 192 |     gstreamer::init();
Dec 18 06:34:38.704 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.704 INFO [stderr]     |
Dec 18 06:34:38.704 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:34:38.704 INFO [stderr] 
Dec 18 06:34:38.728 INFO [stderr] warning: variant is never constructed: `Value`
Dec 18 06:34:38.728 INFO [stderr]   --> src/main.rs:10:5
Dec 18 06:34:38.728 INFO [stderr]    |
Dec 18 06:34:38.729 INFO [stderr] 10 |     Value(T),
Dec 18 06:34:38.729 INFO [stderr]    |     ^^^^^^^^
Dec 18 06:34:38.729 INFO [stderr]    |
Dec 18 06:34:38.730 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:34:38.730 INFO [stderr] 
Dec 18 06:34:38.730 INFO [stderr] warning: struct is never constructed: `ConstrainString`
Dec 18 06:34:38.730 INFO [stderr]   --> src/main.rs:69:1
Dec 18 06:34:38.731 INFO [stderr]    |
Dec 18 06:34:38.731 INFO [stderr] 69 | struct ConstrainString {
Dec 18 06:34:38.731 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.731 INFO [stderr] 
Dec 18 06:34:38.732 INFO [stderr] warning: method is never used: `into_caps_string`
Dec 18 06:34:38.732 INFO [stderr]   --> src/main.rs:75:5
Dec 18 06:34:38.732 INFO [stderr]    |
Dec 18 06:34:38.732 INFO [stderr] 75 |     fn into_caps_string(self) -> String {
Dec 18 06:34:38.733 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.733 INFO [stderr] 
Dec 18 06:34:38.733 INFO [stderr] warning: enum is never used: `ConstrainBool`
Dec 18 06:34:38.733 INFO [stderr]   --> src/main.rs:84:1
Dec 18 06:34:38.734 INFO [stderr]    |
Dec 18 06:34:38.734 INFO [stderr] 84 | enum ConstrainBool {
Dec 18 06:34:38.734 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.734 INFO [stderr] 
Dec 18 06:34:38.776 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:34:38.776 INFO [stderr]    --> src/main.rs:185:9
Dec 18 06:34:38.776 INFO [stderr]     |
Dec 18 06:34:38.776 INFO [stderr] 185 |         pipeline.add_many(&[&self.element, &convert, &sink]);
Dec 18 06:34:38.776 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.776 INFO [stderr]     |
Dec 18 06:34:38.776 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 06:34:38.776 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:34:38.776 INFO [stderr] 
Dec 18 06:34:38.777 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:34:38.777 INFO [stderr]    --> src/main.rs:186:9
Dec 18 06:34:38.777 INFO [stderr]     |
Dec 18 06:34:38.777 INFO [stderr] 186 |         gst::Element::link_many(&[&self.element, &convert, &sink]);
Dec 18 06:34:38.777 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.777 INFO [stderr]     |
Dec 18 06:34:38.777 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:34:38.777 INFO [stderr] 
Dec 18 06:34:38.777 INFO [stderr] warning: unused `gstreamer::StateChangeReturn` that must be used
Dec 18 06:34:38.777 INFO [stderr]    --> src/main.rs:187:9
Dec 18 06:34:38.777 INFO [stderr]     |
Dec 18 06:34:38.777 INFO [stderr] 187 |         pipeline.set_state(gst::State::Playing);
Dec 18 06:34:38.777 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.777 INFO [stderr] 
Dec 18 06:34:38.777 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 06:34:38.777 INFO [stderr]    --> src/main.rs:192:5
Dec 18 06:34:38.777 INFO [stderr]     |
Dec 18 06:34:38.777 INFO [stderr] 192 |     gstreamer::init();
Dec 18 06:34:38.777 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^
Dec 18 06:34:38.777 INFO [stderr]     |
Dec 18 06:34:38.778 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 06:34:38.778 INFO [stderr] 
Dec 18 06:34:38.833 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.05s
Dec 18 06:34:40.420 INFO running `"docker" "inspect" "41ec0e75bad028fce073df8756378aa0766cfe6180e603cac7634228653741ca"`
Dec 18 06:34:40.706 INFO running `"docker" "rm" "-f" "41ec0e75bad028fce073df8756378aa0766cfe6180e603cac7634228653741ca"`
Dec 18 06:34:41.028 INFO [stdout] 41ec0e75bad028fce073df8756378aa0766cfe6180e603cac7634228653741ca