[INFO] crate iron 0.6.0 is already in cache
[INFO] extracting crate iron 0.6.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/iron/0.6.0
[INFO] extracting crate iron 0.6.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/iron/0.6.0
[INFO] validating manifest of iron-0.6.0 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 iron-0.6.0 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 iron-0.6.0
[INFO] finished frobbing iron-0.6.0
[INFO] frobbed toml for iron-0.6.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/iron/0.6.0/Cargo.toml
[INFO] started frobbing iron-0.6.0
[INFO] finished frobbing iron-0.6.0
[INFO] frobbed toml for iron-0.6.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/iron/0.6.0/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] 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 iron-0.6.0 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/iron/0.6.0:/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] d556544e606d93b23717512dfc129bb86e94c3a5573fe118414d0e499ed3e0d1
[INFO] running `"docker" "start" "-a" "d556544e606d93b23717512dfc129bb86e94c3a5573fe118414d0e499ed3e0d1"`
[INFO] [stderr]    Compiling iron v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:29:20
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub error: Box<Error + Send>,
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn 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]   --> src/error.rs:58:32
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:200:34
[INFO] [stderr]     |
[INFO] [stderr] 200 |     fn around(self, handler: Box<Handler>) -> Box<Handler>;
[INFO] [stderr]     |                                  ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:200:51
[INFO] [stderr]     |
[INFO] [stderr] 200 |     fn around(self, handler: Box<Handler>) -> Box<Handler>;
[INFO] [stderr]     |                                                   ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:209:22
[INFO] [stderr]     |
[INFO] [stderr] 209 |     befores: Vec<Box<BeforeMiddleware>>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BeforeMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:210:21
[INFO] [stderr]     |
[INFO] [stderr] 210 |     afters: Vec<Box<AfterMiddleware>>,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AfterMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:213:25
[INFO] [stderr]     |
[INFO] [stderr] 213 |     handler: Option<Box<Handler>>
[INFO] [stderr]     |                         ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:222:52
[INFO] [stderr]     |
[INFO] [stderr] 222 |             handler: Some(Box::new(handler) as Box<Handler>)
[INFO] [stderr]     |                                                    ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:233:51
[INFO] [stderr]     |
[INFO] [stderr] 233 |         self.befores.push(Box::new(before) as Box<BeforeMiddleware>);
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BeforeMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:234:49
[INFO] [stderr]     |
[INFO] [stderr] 234 |         self.afters.push(Box::new(after) as Box<AfterMiddleware>);
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AfterMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:242:51
[INFO] [stderr]     |
[INFO] [stderr] 242 |         self.befores.push(Box::new(before) as Box<BeforeMiddleware>);
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BeforeMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:250:49
[INFO] [stderr]     |
[INFO] [stderr] 250 |         self.afters.push(Box::new(after) as Box<AfterMiddleware>);
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AfterMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:393:22
[INFO] [stderr]     |
[INFO] [stderr] 393 | impl Handler for Box<Handler> {
[INFO] [stderr]     |                      ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:406:31
[INFO] [stderr]     |
[INFO] [stderr] 406 | impl BeforeMiddleware for Box<BeforeMiddleware> {
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BeforeMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:433:30
[INFO] [stderr]     |
[INFO] [stderr] 433 | impl AfterMiddleware for Box<AfterMiddleware> {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AfterMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:454:21
[INFO] [stderr]     |
[INFO] [stderr] 454 | where F: FnOnce(Box<Handler>) -> Box<Handler> {
[INFO] [stderr]     |                     ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:454:38
[INFO] [stderr]     |
[INFO] [stderr] 454 | where F: FnOnce(Box<Handler>) -> Box<Handler> {
[INFO] [stderr]     |                                      ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:455:34
[INFO] [stderr]     |
[INFO] [stderr] 455 |     fn around(self, handler: Box<Handler>) -> Box<Handler> {
[INFO] [stderr]     |                                  ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:455:51
[INFO] [stderr]     |
[INFO] [stderr] 455 |     fn around(self, handler: Box<Handler>) -> Box<Handler> {
[INFO] [stderr]     |                                                   ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:24:40
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()>;
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:28:40
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:34:40
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:40:40
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:46:40
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:52:40
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:57:24
[INFO] [stderr]    |
[INFO] [stderr] 57 | impl WriteBody for Box<io::Read + Send> {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Read + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:58:40
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:64:40
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:90:26
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub body: Option<Box<WriteBody>>
[INFO] [stderr]    |                          ^^^^^^^^^ help: use `dyn`: `dyn WriteBody`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/response.rs:135:64
[INFO] [stderr]     |
[INFO] [stderr] 135 | fn write_with_body(mut res: HttpResponse<Fresh>, mut body: Box<WriteBody>)
[INFO] [stderr]     |                                                                ^^^^^^^^^ help: use `dyn`: `dyn WriteBody`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/request/mod.rs:150:74
[INFO] [stderr]     |
[INFO] [stderr] 150 | pub struct Body<'a, 'b: 'a>(HttpReader<&'a mut buffer::BufReader<&'b mut NetworkStream>>);
[INFO] [stderr]     |                                                                          ^^^^^^^^^^^^^ help: use `dyn`: `dyn NetworkStream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/request/mod.rs:154:69
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn new(reader: HttpReader<&'a mut buffer::BufReader<&'b mut NetworkStream>>) -> Body<'a, 'b> {
[INFO] [stderr]     |                                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn NetworkStream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/modifiers.rs:70:33
[INFO] [stderr]    |
[INFO] [stderr] 70 | impl Modifier<Response> for Box<WriteBody> {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: use `dyn`: `dyn WriteBody`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:59:20
[INFO] [stderr]    |
[INFO] [stderr] 59 |         self.error.cause()
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "d556544e606d93b23717512dfc129bb86e94c3a5573fe118414d0e499ed3e0d1"`
[INFO] running `"docker" "rm" "-f" "d556544e606d93b23717512dfc129bb86e94c3a5573fe118414d0e499ed3e0d1"`
[INFO] [stdout] d556544e606d93b23717512dfc129bb86e94c3a5573fe118414d0e499ed3e0d1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/iron/0.6.0:/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] 3e6417aca84fb8294b6ea3fc6fb1c61c61e08894e08abeb1d44454bc6c78063d
[INFO] running `"docker" "start" "-a" "3e6417aca84fb8294b6ea3fc6fb1c61c61e08894e08abeb1d44454bc6c78063d"`
[INFO] [stderr]    Compiling iron v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:29:20
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub error: Box<Error + Send>,
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send`
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:2:24
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] implied by #[warn(warnings)]
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:58:32
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:200:34
[INFO] [stderr]     |
[INFO] [stderr] 200 |     fn around(self, handler: Box<Handler>) -> Box<Handler>;
[INFO] [stderr]     |                                  ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:200:51
[INFO] [stderr]     |
[INFO] [stderr] 200 |     fn around(self, handler: Box<Handler>) -> Box<Handler>;
[INFO] [stderr]     |                                                   ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:209:22
[INFO] [stderr]     |
[INFO] [stderr] 209 |     befores: Vec<Box<BeforeMiddleware>>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BeforeMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:210:21
[INFO] [stderr]     |
[INFO] [stderr] 210 |     afters: Vec<Box<AfterMiddleware>>,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AfterMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:213:25
[INFO] [stderr]     |
[INFO] [stderr] 213 |     handler: Option<Box<Handler>>
[INFO] [stderr]     |                         ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:222:52
[INFO] [stderr]     |
[INFO] [stderr] 222 |             handler: Some(Box::new(handler) as Box<Handler>)
[INFO] [stderr]     |                                                    ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:233:51
[INFO] [stderr]     |
[INFO] [stderr] 233 |         self.befores.push(Box::new(before) as Box<BeforeMiddleware>);
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BeforeMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:234:49
[INFO] [stderr]     |
[INFO] [stderr] 234 |         self.afters.push(Box::new(after) as Box<AfterMiddleware>);
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AfterMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:242:51
[INFO] [stderr]     |
[INFO] [stderr] 242 |         self.befores.push(Box::new(before) as Box<BeforeMiddleware>);
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BeforeMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:250:49
[INFO] [stderr]     |
[INFO] [stderr] 250 |         self.afters.push(Box::new(after) as Box<AfterMiddleware>);
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AfterMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:393:22
[INFO] [stderr]     |
[INFO] [stderr] 393 | impl Handler for Box<Handler> {
[INFO] [stderr]     |                      ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:406:31
[INFO] [stderr]     |
[INFO] [stderr] 406 | impl BeforeMiddleware for Box<BeforeMiddleware> {
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BeforeMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:433:30
[INFO] [stderr]     |
[INFO] [stderr] 433 | impl AfterMiddleware for Box<AfterMiddleware> {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AfterMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:454:21
[INFO] [stderr]     |
[INFO] [stderr] 454 | where F: FnOnce(Box<Handler>) -> Box<Handler> {
[INFO] [stderr]     |                     ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:454:38
[INFO] [stderr]     |
[INFO] [stderr] 454 | where F: FnOnce(Box<Handler>) -> Box<Handler> {
[INFO] [stderr]     |                                      ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:455:34
[INFO] [stderr]     |
[INFO] [stderr] 455 |     fn around(self, handler: Box<Handler>) -> Box<Handler> {
[INFO] [stderr]     |                                  ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/mod.rs:455:51
[INFO] [stderr]     |
[INFO] [stderr] 455 |     fn around(self, handler: Box<Handler>) -> Box<Handler> {
[INFO] [stderr]     |                                                   ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/test.rs:196:37
[INFO] [stderr]     |
[INFO] [stderr] 196 |         .map(|m| Box::new(m) as Box<BeforeMiddleware>)
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BeforeMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/test.rs:203:37
[INFO] [stderr]     |
[INFO] [stderr] 203 |         .map(|m| Box::new(m) as Box<AfterMiddleware>)
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AfterMiddleware`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/middleware/test.rs:208:48
[INFO] [stderr]     |
[INFO] [stderr] 208 |         handler: Some(Box::new(handler) as Box<Handler>),
[INFO] [stderr]     |                                                ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:24:40
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()>;
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:28:40
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:34:40
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:40:40
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:46:40
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:52:40
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:57:24
[INFO] [stderr]    |
[INFO] [stderr] 57 | impl WriteBody for Box<io::Read + Send> {
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Read + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:58:40
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:64:40
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn write_body(&mut self, res: &mut Write) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/response.rs:90:26
[INFO] [stderr]    |
[INFO] [stderr] 90 |     pub body: Option<Box<WriteBody>>
[INFO] [stderr]    |                          ^^^^^^^^^ help: use `dyn`: `dyn WriteBody`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/response.rs:135:64
[INFO] [stderr]     |
[INFO] [stderr] 135 | fn write_with_body(mut res: HttpResponse<Fresh>, mut body: Box<WriteBody>)
[INFO] [stderr]     |                                                                ^^^^^^^^^ help: use `dyn`: `dyn WriteBody`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/request/mod.rs:150:74
[INFO] [stderr]     |
[INFO] [stderr] 150 | pub struct Body<'a, 'b: 'a>(HttpReader<&'a mut buffer::BufReader<&'b mut NetworkStream>>);
[INFO] [stderr]     |                                                                          ^^^^^^^^^^^^^ help: use `dyn`: `dyn NetworkStream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/request/mod.rs:154:69
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn new(reader: HttpReader<&'a mut buffer::BufReader<&'b mut NetworkStream>>) -> Body<'a, 'b> {
[INFO] [stderr]     |                                                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn NetworkStream`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/modifiers.rs:70:33
[INFO] [stderr]    |
[INFO] [stderr] 70 | impl Modifier<Response> for Box<WriteBody> {
[INFO] [stderr]    |                                 ^^^^^^^^^ help: use `dyn`: `dyn WriteBody`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:59:20
[INFO] [stderr]    |
[INFO] [stderr] 59 |         self.error.cause()
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:2:24
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    = note: #[warn(deprecated)] implied by #[warn(warnings)]
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/around.rs:44:34
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn around(self, handler: Box<Handler>) -> Box<Handler> {
[INFO] [stderr]    |                                  ^^^^^^^ help: use `dyn`: `dyn Handler`
[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/around.rs:44:51
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn around(self, handler: Box<Handler>) -> Box<Handler> {
[INFO] [stderr]    |                                                   ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/around.rs:48:19
[INFO] [stderr]    |
[INFO] [stderr] 48 |         }) as Box<Handler>
[INFO] [stderr]    |                   ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/simple_routing.rs:14:33
[INFO] [stderr]    |
[INFO] [stderr] 14 |     routes: HashMap<String, Box<Handler>>
[INFO] [stderr]    |                                 ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.31s
[INFO] running `"docker" "inspect" "3e6417aca84fb8294b6ea3fc6fb1c61c61e08894e08abeb1d44454bc6c78063d"`
[INFO] running `"docker" "rm" "-f" "3e6417aca84fb8294b6ea3fc6fb1c61c61e08894e08abeb1d44454bc6c78063d"`
[INFO] [stdout] 3e6417aca84fb8294b6ea3fc6fb1c61c61e08894e08abeb1d44454bc6c78063d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/iron/0.6.0:/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"`
[INFO] [stdout] a94ffa05e2fed2dd914914bb618bf8e2753c40a86fbf8fb472b65aa8d986c6bf
[INFO] running `"docker" "start" "-a" "a94ffa05e2fed2dd914914bb618bf8e2753c40a86fbf8fb472b65aa8d986c6bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/iron-2a57e7743c34044f
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test modifiers::test::test_mime_for_path ... ok
[INFO] [stdout] test middleware::test::test_chain_after_error ... ok
[INFO] [stdout] test middleware::test::test_chain_after_error_then_handle ... ok
[INFO] [stdout] test middleware::test::test_chain_handler_error ... ok
[INFO] [stdout] test request::url::test::test_conversion ... ok
[INFO] [stdout] test middleware::test::test_chain_handler_error_then_handle ... ok
[INFO] [stdout] test middleware::test::test_chain_before_error ... ok
[INFO] [stdout] test middleware::test::test_chain_before_error_then_handle ... ok
[INFO] [stdout] test request::url::test::test_from_str_negative ... ok
[INFO] [stdout] test middleware::test::test_chain_normal ... ok
[INFO] [stdout] test request::url::test::test_from_str_positive ... ok
[INFO] [stdout] test request::url::test::test_https_default_port ... ok
[INFO] [stdout] test request::url::test::test_empty_password ... ok
[INFO] [stdout] test request::url::test::test_https_non_default_port ... ok
[INFO] [stdout] test request::url::test::test_formatting ... ok
[INFO] [stdout] test request::url::test::test_not_empty_password ... ok
[INFO] [stdout] test request::url::test::test_explicit_port ... ok
[INFO] [stdout] test request::url::test::test_not_empty_username ... ok
[INFO] [stdout] test request::url::test::test_empty_username ... ok
[INFO] [stdout] test request::url::test::test_default_port ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iron
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/macros.rs - itry (line 14) ... ignored
[INFO] [stdout] test src/middleware/mod.rs - middleware (line 14) ... ok
[INFO] [stdout] test src/lib.rs -  (line 21) ... ok
[INFO] [stdout] test src/lib.rs - prelude (line 114) ... ok
[INFO] [stdout] test src/modifiers.rs - modifiers (line 14) ... ok
[INFO] [stdout] test src/modifiers.rs - modifiers (line 25) ... ok
[INFO] [stdout] test src/modifiers.rs - modifiers (line 33) ... ok
[INFO] [stdout] test src/middleware/mod.rs - middleware (line 52) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a94ffa05e2fed2dd914914bb618bf8e2753c40a86fbf8fb472b65aa8d986c6bf"`
[INFO] running `"docker" "rm" "-f" "a94ffa05e2fed2dd914914bb618bf8e2753c40a86fbf8fb472b65aa8d986c6bf"`
[INFO] [stdout] a94ffa05e2fed2dd914914bb618bf8e2753c40a86fbf8fb472b65aa8d986c6bf