[INFO] updating cached repository vitobasso/rust-synth
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vitobasso/rust-synth
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vitobasso/rust-synth" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/vitobasso/rust-synth"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/vitobasso/rust-synth'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vitobasso/rust-synth" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/vitobasso/rust-synth"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/vitobasso/rust-synth'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7561a9515b2c2ef8d47d282fe8cf147c456f797
[INFO] sha for GitHub repo vitobasso/rust-synth: b7561a9515b2c2ef8d47d282fe8cf147c456f797
[INFO] validating manifest of vitobasso/rust-synth on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vitobasso/rust-synth on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vitobasso/rust-synth
[INFO] finished frobbing vitobasso/rust-synth
[INFO] frobbed toml for vitobasso/rust-synth written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/vitobasso/rust-synth/Cargo.toml
[INFO] started frobbing vitobasso/rust-synth
[INFO] finished frobbing vitobasso/rust-synth
[INFO] frobbed toml for vitobasso/rust-synth written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/vitobasso/rust-synth/Cargo.toml
[INFO] crate vitobasso/rust-synth already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking vitobasso/rust-synth against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/vitobasso/rust-synth:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3d2e59202c402310eb59784bbd88c98ca23b4213ba4ca4566dbe9a6c54dfa965
[INFO] running `"docker" "start" "-a" "3d2e59202c402310eb59784bbd88c98ca23b4213ba4ca4566dbe9a6c54dfa965"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking tempfile v3.0.4
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]     Checking alsa-sys v0.1.2
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking rusttype v0.5.2
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]    Compiling glium v0.22.0
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]     Checking daggy v0.5.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.2.6
[INFO] [stderr]     Checking winit v0.16.2
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling conrod_derive v0.1.2
[INFO] [stderr]     Checking rimd v0.0.2 (https://github.com/RustAudio/rimd.git#6e623dbc)
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking conrod v0.61.1
[INFO] [stderr]     Checking rust-synth v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `end`
[INFO] [stderr]    --> src/core/control/song.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     end: Instant,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `end`
[INFO] [stderr]    --> src/core/control/song.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     end: Instant,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `end`
[INFO] [stderr]    --> src/core/control/song.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     end: Instant,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `end`
[INFO] [stderr]    --> src/core/control/song.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 108 |     end: Instant,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 45s
[INFO] running `"docker" "inspect" "3d2e59202c402310eb59784bbd88c98ca23b4213ba4ca4566dbe9a6c54dfa965"`
[INFO] running `"docker" "rm" "-f" "3d2e59202c402310eb59784bbd88c98ca23b4213ba4ca4566dbe9a6c54dfa965"`
[INFO] [stdout] 3d2e59202c402310eb59784bbd88c98ca23b4213ba4ca4566dbe9a6c54dfa965