[INFO] cloning repository https://github.com/koute/cargo-web
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/koute/cargo-web" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoute%2Fcargo-web", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoute%2Fcargo-web'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ddd9bbb567b8d4893e923cba8ad03806d383d80
[INFO] checking koute/cargo-web against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoute%2Fcargo-web" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/koute/cargo-web on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/koute/cargo-web
[INFO] finished tweaking git repo https://github.com/koute/cargo-web
[INFO] tweaked toml for git repo https://github.com/koute/cargo-web written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/koute/cargo-web already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c39fba4db93735e988f377880fb561e7f919e3f959ea3b4de9ca4d9adbc44f7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9c39fba4db93735e988f377880fb561e7f919e3f959ea3b4de9ca4d9adbc44f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c39fba4db93735e988f377880fb561e7f919e3f959ea3b4de9ca4d9adbc44f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c39fba4db93735e988f377880fb561e7f919e3f959ea3b4de9ca4d9adbc44f7", kill_on_drop: false }`
[INFO] [stdout] 9c39fba4db93735e988f377880fb561e7f919e3f959ea3b4de9ca4d9adbc44f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89ba9f5c360dec4810c726283bba2ae8ede331d6a374fd67bd6a4e9a7241c096
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "89ba9f5c360dec4810c726283bba2ae8ede331d6a374fd67bd6a4e9a7241c096", kill_on_drop: false }`
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[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< error::Error > ),
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< error::Error > )
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< error::Error > > for Error {
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< error::Error > ) -> Self {
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future< Item = Response< Body >, Error = hyper::Error > + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:54:27
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future< Item = SimpleService, Error = hyper::Error > + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/wasm.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< error::Error > ),
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< error::Error > )
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< error::Error > > for Error {
[INFO] [stdout]    |                 ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< error::Error > ) -> Self {
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future< Item = Response< Body >, Error = hyper::Error > + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:54:27
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future< Item = SimpleService, Error = hyper::Error > + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/wasm.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:267:86
[INFO] [stdout]     |
[INFO] [stdout] 267 |             Error::CannotLaunchCargo( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:268:80
[INFO] [stdout]     |
[INFO] [stdout] 268 |             Error::CargoFailed( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:269:91
[INFO] [stdout]     |
[INFO] [stdout] 269 |             Error::CannotParseCargoOutput( ref err ) => write!( formatter, "{}: {}", self.description(), err )
[INFO] [stdout]     |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:267:86
[INFO] [stdout]     |
[INFO] [stdout] 267 |             Error::CannotLaunchCargo( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:268:80
[INFO] [stdout]     |
[INFO] [stdout] 268 |             Error::CargoFailed( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:269:91
[INFO] [stdout]     |
[INFO] [stdout] 269 |             Error::CannotParseCargoOutput( ref err ) => write!( formatter, "{}: {}", self.description(), err )
[INFO] [stdout]     |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:34:93
[INFO] [stdout]    |
[INFO] [stdout] 34 |             ConnectionError::FailedToFetchUrl( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:35:91
[INFO] [stdout]    |
[INFO] [stdout] 35 |             ConnectionError::WebSocketError( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:70:84
[INFO] [stdout]    |
[INFO] [stdout] 70 |             CommunicationError::Send( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:71:84
[INFO] [stdout]    |
[INFO] [stdout] 71 |             CommunicationError::Recv( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:98:60
[INFO] [stdout]    |
[INFO] [stdout] 98 |             ReplyError::Timeout => write!( fmt, "{}", self.description() ),
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:99:86
[INFO] [stdout]    |
[INFO] [stdout] 99 |             ReplyError::MalformedMessage( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:100:83
[INFO] [stdout]     |
[INFO] [stdout] 100 |             ReplyError::MalformedJson( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]     |                                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:101:88
[INFO] [stdout]     |
[INFO] [stdout] 101 |             ReplyError::CommunicationError( ref error ) => write!( fmt, "{}: {}", self.description(), error )
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:34:93
[INFO] [stdout]    |
[INFO] [stdout] 34 |             ConnectionError::FailedToFetchUrl( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:35:91
[INFO] [stdout]    |
[INFO] [stdout] 35 |             ConnectionError::WebSocketError( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:70:84
[INFO] [stdout]    |
[INFO] [stdout] 70 |             CommunicationError::Send( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:71:84
[INFO] [stdout]    |
[INFO] [stdout] 71 |             CommunicationError::Recv( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:98:60
[INFO] [stdout]    |
[INFO] [stdout] 98 |             ReplyError::Timeout => write!( fmt, "{}", self.description() ),
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:99:86
[INFO] [stdout]    |
[INFO] [stdout] 99 |             ReplyError::MalformedMessage( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:100:83
[INFO] [stdout]     |
[INFO] [stdout] 100 |             ReplyError::MalformedJson( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]     |                                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:101:88
[INFO] [stdout]     |
[INFO] [stdout] 101 |             ReplyError::CommunicationError( ref error ) => write!( fmt, "{}: {}", self.description(), error )
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:35:57
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Error::CargoShimError( ref error ) => error.description(),
[INFO] [stdout]    |                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Error::Other( ref error ) => error.description()
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:75:87
[INFO] [stdout]    |
[INFO] [stdout] 75 |             &Error::RuntimeError( _, ref inner ) => write!( formatter, "{}: {}", self.description(), inner ),
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:85:48
[INFO] [stdout]    |
[INFO] [stdout] 85 |             _ => write!( formatter, "{}", self.description() )
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:35:57
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Error::CargoShimError( ref error ) => error.description(),
[INFO] [stdout]    |                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Error::Other( ref error ) => error.description()
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:75:87
[INFO] [stdout]    |
[INFO] [stdout] 75 |             &Error::RuntimeError( _, ref inner ) => write!( formatter, "{}: {}", self.description(), inner ),
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:85:48
[INFO] [stdout]    |
[INFO] [stdout] 85 |             _ => write!( formatter, "{}", self.description() )
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/wasm.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/wasm.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:924:13
[INFO] [stdout]     |
[INFO] [stdout] 924 |         for mut artifact in artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:924:13
[INFO] [stdout]     |
[INFO] [stdout] 924 |         for mut artifact in artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:541:38
[INFO] [stdout]     |
[INFO] [stdout] 541 |                 pw::Section::Export( mut section ) => {
[INFO] [stdout]     |                                      ----^^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:579:40
[INFO] [stdout]     |
[INFO] [stdout] 579 |                 pw::Section::Function( mut section ) => {
[INFO] [stdout]     |                                        ----^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:541:38
[INFO] [stdout]     |
[INFO] [stdout] 541 |                 pw::Section::Export( mut section ) => {
[INFO] [stdout]     |                                      ----^^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:579:40
[INFO] [stdout]     |
[INFO] [stdout] 579 |                 pw::Section::Function( mut section ) => {
[INFO] [stdout]     |                                        ----^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `default_package`
[INFO] [stdout]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stdout]     |
[INFO] [stdout] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `used_packages`
[INFO] [stdout]    --> src/cargo_shim/mod.rs:452:12
[INFO] [stdout]     |
[INFO] [stdout] 452 |     pub fn used_packages( &self, triplet: &str, main_package: &CargoPackage, profile: Profile ) -> Vec< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `default_package`
[INFO] [stdout]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stdout]     |
[INFO] [stdout] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `used_packages`
[INFO] [stdout]    --> src/cargo_shim/mod.rs:452:12
[INFO] [stdout]     |
[INFO] [stdout] 452 |     pub fn used_packages( &self, triplet: &str, main_package: &CargoPackage, profile: Profile ) -> Vec< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 24s
[INFO] running `Command { std: "docker" "inspect" "89ba9f5c360dec4810c726283bba2ae8ede331d6a374fd67bd6a4e9a7241c096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89ba9f5c360dec4810c726283bba2ae8ede331d6a374fd67bd6a4e9a7241c096", kill_on_drop: false }`
[INFO] [stdout] 89ba9f5c360dec4810c726283bba2ae8ede331d6a374fd67bd6a4e9a7241c096