[INFO] crate usher 0.1.1 is already in cache
[INFO] extracting crate usher 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/usher/0.1.1
[INFO] extracting crate usher 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/usher/0.1.1
[INFO] validating manifest of usher-0.1.1 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 usher-0.1.1 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 usher-0.1.1
[INFO] removed 3 missing examples
[INFO] finished frobbing usher-0.1.1
[INFO] frobbed toml for usher-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/usher/0.1.1/Cargo.toml
[INFO] started frobbing usher-0.1.1
[INFO] removed 3 missing examples
[INFO] finished frobbing usher-0.1.1
[INFO] frobbed toml for usher-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/usher/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 usher-0.1.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/usher/0.1.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b66be15859eeb78cac56f0f49ddcb97327657a3d93938baba7f18531b3acdc9d
[INFO] running `"docker" "start" "-a" "b66be15859eeb78cac56f0f49ddcb97327657a3d93938baba7f18531b3acdc9d"`
[INFO] [stderr]    Compiling usher v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/node.rs:26:18
[INFO] [stderr]    |
[INFO] [stderr] 26 |     matcher: Box<Matcher>,
[INFO] [stderr]    |                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[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/node.rs:32:36
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub(crate) fn new(matcher: Box<Matcher>) -> Self {
[INFO] [stderr]    |                                    ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:16:50
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn parse(&self, segment: &str) -> Option<Box<Matcher>>;
[INFO] [stderr]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:22:31
[INFO] [stderr]    |
[INFO] [stderr] 22 |     F: Fn(&str) -> Option<Box<Matcher>> + Send + Sync,
[INFO] [stderr]    |                               ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:25:50
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn parse(&self, segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:39:50
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn parse(&self, segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:52:50
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn parse(&self, segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/router.rs:27:22
[INFO] [stderr]    |
[INFO] [stderr] 27 |     parsers: Vec<Box<Parser>>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Parser`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/router.rs:32:37
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn new(mut parsers: Vec<Box<Parser>>) -> Self {
[INFO] [stderr]    |                                     ^^^^^^ help: use `dyn`: `dyn Parser`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/router.rs:138:33
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn parse_segment(parsers: &[Box<Parser>], segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]     |                                 ^^^^^^ help: use `dyn`: `dyn Parser`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/router.rs:138:72
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn parse_segment(parsers: &[Box<Parser>], segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]     |                                                                        ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "b66be15859eeb78cac56f0f49ddcb97327657a3d93938baba7f18531b3acdc9d"`
[INFO] running `"docker" "rm" "-f" "b66be15859eeb78cac56f0f49ddcb97327657a3d93938baba7f18531b3acdc9d"`
[INFO] [stdout] b66be15859eeb78cac56f0f49ddcb97327657a3d93938baba7f18531b3acdc9d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/usher/0.1.1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2146a4468777883e089420363bf92854e67b6470346ade1b3d2f8550e3172f77
[INFO] running `"docker" "start" "-a" "2146a4468777883e089420363bf92854e67b6470346ade1b3d2f8550e3172f77"`
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling usher v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/parser_test.rs:21:57
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn create_static_matcher(input: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]    |                                                         ^^^^^^^ help: use `dyn`: `dyn Matcher`
[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/node.rs:26:18
[INFO] [stderr]    |
[INFO] [stderr] 26 |     matcher: Box<Matcher>,
[INFO] [stderr]    |                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[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/node.rs:32:36
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub(crate) fn new(matcher: Box<Matcher>) -> Self {
[INFO] [stderr]    |                                    ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:16:50
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn parse(&self, segment: &str) -> Option<Box<Matcher>>;
[INFO] [stderr]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:22:31
[INFO] [stderr]    |
[INFO] [stderr] 22 |     F: Fn(&str) -> Option<Box<Matcher>> + Send + Sync,
[INFO] [stderr]    |                               ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:25:50
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn parse(&self, segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:39:50
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn parse(&self, segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:52:50
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn parse(&self, segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]    |                                                  ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/router.rs:27:22
[INFO] [stderr]    |
[INFO] [stderr] 27 |     parsers: Vec<Box<Parser>>,
[INFO] [stderr]    |                      ^^^^^^ help: use `dyn`: `dyn Parser`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/router.rs:32:37
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn new(mut parsers: Vec<Box<Parser>>) -> Self {
[INFO] [stderr]    |                                     ^^^^^^ help: use `dyn`: `dyn Parser`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/router.rs:138:33
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn parse_segment(parsers: &[Box<Parser>], segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]     |                                 ^^^^^^ help: use `dyn`: `dyn Parser`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/router.rs:138:72
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn parse_segment(parsers: &[Box<Parser>], segment: &str) -> Option<Box<Matcher>> {
[INFO] [stderr]     |                                                                        ^^^^^^^ help: use `dyn`: `dyn Matcher`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `usher::http`
[INFO] [stderr]  --> examples/web-basic.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | use usher::http::HttpRouter;
[INFO] [stderr]   |            ^^^^ could not find `http` in `usher`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `http`
[INFO] [stderr]  --> examples/web-basic.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use http::Method;
[INFO] [stderr]   |     ^^^^ help: a similar path exists: `hyper::http`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `usher::http`
[INFO] [stderr]  --> examples/web-hyper-sync.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use usher::http::HttpRouter;
[INFO] [stderr]   |            ^^^^ could not find `http` in `usher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> examples/web-hyper-sync.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | type Callee = Box<Fn(Request<Body>, Vec<(&str, (usize, usize))>) -> Response<Body> + Send + Sync>;
[INFO] [stderr]   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<Body>, Vec<(&str, (usize, usize))>) -> Response<Body> + Send + Sync`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]  --> examples/web-basic.rs:8:64
[INFO] [stderr]   |
[INFO] [stderr] 8 |         HttpRouter::new(vec![Box::new(DynamicParser), Box::new(StaticParser)]);
[INFO] [stderr]   |                                                                ^^^^^^^^^^^^ expected struct `usher::parser::DynamicParser`, found struct `usher::parser::StaticParser`
[INFO] [stderr]   |
[INFO] [stderr]   = note: expected type `usher::parser::DynamicParser`
[INFO] [stderr]              found type `usher::parser::StaticParser`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `usher`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `usher::http`
[INFO] [stderr]  --> examples/web-hyper-async.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | use usher::http::HttpRouter;
[INFO] [stderr]   |            ^^^^ could not find `http` in `usher`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/web-hyper-async.rs:10:19
[INFO] [stderr]    |
[INFO] [stderr] 10 | type BoxFut = Box<Future<Item = Response<Body>, Error = hyper::Error> + Send>;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Response<Body>, Error = hyper::Error> + Send`
[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]   --> examples/web-hyper-async.rs:13:19
[INFO] [stderr]    |
[INFO] [stderr] 13 | type Callee = Box<Fn(Request<Body>, Vec<(&str, (usize, usize))>) -> BoxFut + Send + Sync>;
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Request<Body>, Vec<(&str, (usize, usize))>) -> BoxFut + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> examples/web-hyper-sync.rs:20:72
[INFO] [stderr]    |
[INFO] [stderr] 20 |                 HttpRouter::new(vec![Box::new(DynamicParser), Box::new(StaticParser)]);
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^ expected struct `usher::parser::DynamicParser`, found struct `usher::parser::StaticParser`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `usher::parser::DynamicParser`
[INFO] [stderr]               found type `usher::parser::StaticParser`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stderr]   --> examples/web-hyper-sync.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 |                     let path = req.uri().path();
[INFO] [stderr]    |                         ^^^^ doesn't have a size known at compile-time
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::marker::Sized` is not implemented for `str`
[INFO] [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]    = note: all local variables must have a statically known size
[INFO] [stderr]    = help: unsized locals are gated as an unstable feature
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `[(&str, (usize, usize))]` cannot be known at compilation time
[INFO] [stderr]   --> examples/web-hyper-sync.rs:25:32
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 Box::new(|req, params| {
[INFO] [stderr]    |                                ^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::marker::Sized` is not implemented for `[(&str, (usize, usize))]`
[INFO] [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]    = note: all local variables must have a statically known size
[INFO] [stderr]    = help: unsized locals are gated as an unstable feature
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0308, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `usher`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> examples/web-hyper-async.rs:24:72
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 HttpRouter::new(vec![Box::new(DynamicParser), Box::new(StaticParser)]);
[INFO] [stderr]    |                                                                        ^^^^^^^^^^^^ expected struct `usher::parser::DynamicParser`, found struct `usher::parser::StaticParser`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `usher::parser::DynamicParser`
[INFO] [stderr]               found type `usher::parser::StaticParser`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stderr]   --> examples/web-hyper-async.rs:30:25
[INFO] [stderr]    |
[INFO] [stderr] 30 |                     let path = req.uri().path();
[INFO] [stderr]    |                         ^^^^ doesn't have a size known at compile-time
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::marker::Sized` is not implemented for `str`
[INFO] [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]    = note: all local variables must have a statically known size
[INFO] [stderr]    = help: unsized locals are gated as an unstable feature
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `[(&str, (usize, usize))]` cannot be known at compilation time
[INFO] [stderr]   --> examples/web-hyper-async.rs:29:32
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 Box::new(|req, params| {
[INFO] [stderr]    |                                ^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::marker::Sized` is not implemented for `[(&str, (usize, usize))]`
[INFO] [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]    = note: all local variables must have a statically known size
[INFO] [stderr]    = help: unsized locals are gated as an unstable feature
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0308, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `usher`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2146a4468777883e089420363bf92854e67b6470346ade1b3d2f8550e3172f77"`
[INFO] running `"docker" "rm" "-f" "2146a4468777883e089420363bf92854e67b6470346ade1b3d2f8550e3172f77"`
[INFO] [stdout] 2146a4468777883e089420363bf92854e67b6470346ade1b3d2f8550e3172f77