[INFO] updating cached repository erikjohnston/matrix-introspection
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/erikjohnston/matrix-introspection
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/erikjohnston/matrix-introspection" "work/ex/beta-1.37-6/sources/1.36.0/gh/erikjohnston/matrix-introspection"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/erikjohnston/matrix-introspection'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/erikjohnston/matrix-introspection" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/erikjohnston/matrix-introspection"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/erikjohnston/matrix-introspection'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5f03cf3f3b4a0fdc7ab64b3d2292f440e6880799
[INFO] sha for GitHub repo erikjohnston/matrix-introspection: 5f03cf3f3b4a0fdc7ab64b3d2292f440e6880799
[INFO] validating manifest of erikjohnston/matrix-introspection 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 erikjohnston/matrix-introspection 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 erikjohnston/matrix-introspection
[INFO] finished frobbing erikjohnston/matrix-introspection
[INFO] frobbed toml for erikjohnston/matrix-introspection written to work/ex/beta-1.37-6/sources/1.36.0/gh/erikjohnston/matrix-introspection/Cargo.toml
[INFO] started frobbing erikjohnston/matrix-introspection
[INFO] finished frobbing erikjohnston/matrix-introspection
[INFO] frobbed toml for erikjohnston/matrix-introspection written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/erikjohnston/matrix-introspection/Cargo.toml
[INFO] crate erikjohnston/matrix-introspection 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing erikjohnston/matrix-introspection 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-6/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/erikjohnston/matrix-introspection:/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] 1705daea5c03a232de4f9338b5cb361be09ff9ac6aed868881992e412ffed50f
[INFO] running `"docker" "start" "-a" "1705daea5c03a232de4f9338b5cb361be09ff9ac6aed868881992e412ffed50f"`
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]    Compiling serde v0.9.6
[INFO] [stderr]    Compiling route-recognizer v0.1.11
[INFO] [stderr]    Compiling hyper v0.10.4
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling postgres-shared v0.1.1
[INFO] [stderr]    Compiling syn v0.11.4
[INFO] [stderr]    Compiling postgres v0.13.6
[INFO] [stderr]    Compiling url v1.4.0
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.4.0/src/form_urlencoded.rs:246:40
[INFO] [stderr]     |
[INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 246 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[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_codegen_internals v0.13.0
[INFO] [stderr]    Compiling serde_derive v0.9.6
[INFO] [stderr]    Compiling serde_json v0.9.5
[INFO] [stderr]    Compiling hyper-router v0.1.0 (https://github.com/erikjohnston/rust-hyper-router#25e7f5af)
[INFO] [stderr]    Compiling viz-synapse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:227:46
[INFO] [stderr]     |
[INFO] [stderr] 227 |         "/" => Get => Box::new(index) as Box<RouteHandler>,
[INFO] [stderr]     |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn RouteHandler`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:228:59
[INFO] [stderr]     |
[INFO] [stderr] 228 |         "/assets/:asset" => Get => Box::new(asset) as Box<RouteHandler>,
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn RouteHandler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:230:20
[INFO] [stderr]     |
[INFO] [stderr] 230 |             as Box<RouteHandler>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn RouteHandler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:232:20
[INFO] [stderr]     |
[INFO] [stderr] 232 |             as Box<RouteHandler>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn RouteHandler`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.23s
[INFO] running `"docker" "inspect" "1705daea5c03a232de4f9338b5cb361be09ff9ac6aed868881992e412ffed50f"`
[INFO] running `"docker" "rm" "-f" "1705daea5c03a232de4f9338b5cb361be09ff9ac6aed868881992e412ffed50f"`
[INFO] [stdout] 1705daea5c03a232de4f9338b5cb361be09ff9ac6aed868881992e412ffed50f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/erikjohnston/matrix-introspection:/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] c3fc0d501dc363350337bc7161d7b9e366add8fbd1f30ec873404dbcc395ff9e
[INFO] running `"docker" "start" "-a" "c3fc0d501dc363350337bc7161d7b9e366add8fbd1f30ec873404dbcc395ff9e"`
[INFO] [stderr]    Compiling viz-synapse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:227:46
[INFO] [stderr]     |
[INFO] [stderr] 227 |         "/" => Get => Box::new(index) as Box<RouteHandler>,
[INFO] [stderr]     |                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn RouteHandler`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:228:59
[INFO] [stderr]     |
[INFO] [stderr] 228 |         "/assets/:asset" => Get => Box::new(asset) as Box<RouteHandler>,
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn RouteHandler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:230:20
[INFO] [stderr]     |
[INFO] [stderr] 230 |             as Box<RouteHandler>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn RouteHandler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:232:20
[INFO] [stderr]     |
[INFO] [stderr] 232 |             as Box<RouteHandler>,
[INFO] [stderr]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn RouteHandler`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `"docker" "inspect" "c3fc0d501dc363350337bc7161d7b9e366add8fbd1f30ec873404dbcc395ff9e"`
[INFO] running `"docker" "rm" "-f" "c3fc0d501dc363350337bc7161d7b9e366add8fbd1f30ec873404dbcc395ff9e"`
[INFO] [stdout] c3fc0d501dc363350337bc7161d7b9e366add8fbd1f30ec873404dbcc395ff9e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/erikjohnston/matrix-introspection:/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] 404b0227849980e21c9c54c115559dc41988bafe851426345c192b481254b766
[INFO] running `"docker" "start" "-a" "404b0227849980e21c9c54c115559dc41988bafe851426345c192b481254b766"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/viz_synapse-22b3d29159fb275c
[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" "404b0227849980e21c9c54c115559dc41988bafe851426345c192b481254b766"`
[INFO] running `"docker" "rm" "-f" "404b0227849980e21c9c54c115559dc41988bafe851426345c192b481254b766"`
[INFO] [stdout] 404b0227849980e21c9c54c115559dc41988bafe851426345c192b481254b766