[INFO] updating cached repository efyang/visualizers
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/efyang/visualizers
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/efyang/visualizers" "work/ex/beta-1.38-1/sources/1.37.0/gh/efyang/visualizers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/efyang/visualizers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/efyang/visualizers" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/efyang/visualizers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/efyang/visualizers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 11f1829e288fb78db8aea79c9a9d8b6baec32294
[INFO] sha for GitHub repo efyang/visualizers: 11f1829e288fb78db8aea79c9a9d8b6baec32294
[INFO] validating manifest of efyang/visualizers on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of efyang/visualizers on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing efyang/visualizers
[INFO] finished frobbing efyang/visualizers
[INFO] frobbed toml for efyang/visualizers written to work/ex/beta-1.38-1/sources/1.37.0/gh/efyang/visualizers/Cargo.toml
[INFO] started frobbing efyang/visualizers
[INFO] finished frobbing efyang/visualizers
[INFO] frobbed toml for efyang/visualizers written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/efyang/visualizers/Cargo.toml
[INFO] crate efyang/visualizers already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing efyang/visualizers against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/efyang/visualizers:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 195a968cca3058d973ca843e640bdd47dba74aec429f880380dd8d689f0c6f23
[INFO] running `"docker" "start" "-a" "195a968cca3058d973ca843e640bdd47dba74aec429f880380dd8d689f0c6f23"`
[INFO] [stderr]    Compiling cairo-rs v0.1.1
[INFO] [stderr]    Compiling gio v0.1.1
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.1.1
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling gdk v0.5.1
[INFO] [stderr]    Compiling c_vec v1.0.12
[INFO] [stderr]    Compiling gtk v0.1.1
[INFO] [stderr]    Compiling xdg v2.0.0
[INFO] [stderr]    Compiling serde v0.9.6
[INFO] [stderr]    Compiling glib-sys v0.3.2
[INFO] [stderr]    Compiling gobject-sys v0.3.2
[INFO] [stderr]    Compiling gio-sys v0.3.2
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.3.2
[INFO] [stderr]    Compiling pango-sys v0.3.2
[INFO] [stderr]    Compiling cairo-sys-rs v0.3.2
[INFO] [stderr]    Compiling atk-sys v0.3.2
[INFO] [stderr]    Compiling gdk-sys v0.3.2
[INFO] [stderr]    Compiling gtk-sys v0.3.2
[INFO] [stderr]    Compiling libpulse-sys v0.0.0
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling num-complex v0.1.35
[INFO] [stderr]    Compiling app_dirs v1.1.1
[INFO] [stderr]    Compiling syn v0.11.4
[INFO] [stderr]    Compiling pa_simple v0.1.0 (https://github.com/efyang/pa-simple-rs#c0e9a295)
[INFO] [stderr]    Compiling dft v0.5.3
[INFO] [stderr]    Compiling serde_codegen_internals v0.13.0
[INFO] [stderr]    Compiling glib v0.1.1
[INFO] [stderr] error[E0119]: conflicting implementations of trait `value::SetValueOptional` for type `&_`:
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/glib-0.1.1/src/value.rs:489:1
[INFO] [stderr]     |
[INFO] [stderr] 458 | impl<'a, T: ?Sized + SetValueOptional> SetValueOptional for &'a T {
[INFO] [stderr]     | ----------------------------------------------------------------- first implementation here
[INFO] [stderr] ...
[INFO] [stderr] 489 | impl<T: IsA<Object>> SetValueOptional for T {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `&_`
[INFO] [stderr]     |
[INFO] [stderr]     = note: downstream crates may implement trait `object::IsA<object::Object>` for type `&_`
[INFO] [stderr] 
[INFO] [stderr] error[E0119]: conflicting implementations of trait `value::SetValue` for type `&_`:
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/glib-0.1.1/src/value.rs:483:1
[INFO] [stderr]     |
[INFO] [stderr] 452 | impl<'a, T: ?Sized + SetValue> SetValue for &'a T {
[INFO] [stderr]     | ------------------------------------------------- first implementation here
[INFO] [stderr] ...
[INFO] [stderr] 483 | impl<T: IsA<Object>> SetValue for T {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `&_`
[INFO] [stderr]     |
[INFO] [stderr]     = note: downstream crates may implement trait `object::IsA<object::Object>` for type `&_`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0119`.
[INFO] [stderr] error: Could not compile `glib`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "195a968cca3058d973ca843e640bdd47dba74aec429f880380dd8d689f0c6f23"`
[INFO] running `"docker" "rm" "-f" "195a968cca3058d973ca843e640bdd47dba74aec429f880380dd8d689f0c6f23"`
[INFO] [stdout] 195a968cca3058d973ca843e640bdd47dba74aec429f880380dd8d689f0c6f23