[INFO] fetching crate cargo-web 0.6.26...
[INFO] testing cargo-web-0.6.26 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate cargo-web 0.6.26 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate cargo-web 0.6.26 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-web 0.6.26
[INFO] finished tweaking crates.io crate cargo-web 0.6.26
[INFO] tweaked toml for crates.io crate cargo-web 0.6.26 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-web 0.6.26 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecbf9b5b36b8fd15ad2dc4edc208dd656b82b072b09e290752d701d910ed5c6d
[INFO] running `Command { std: "docker" "start" "-a" "ecbf9b5b36b8fd15ad2dc4edc208dd656b82b072b09e290752d701d910ed5c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecbf9b5b36b8fd15ad2dc4edc208dd656b82b072b09e290752d701d910ed5c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecbf9b5b36b8fd15ad2dc4edc208dd656b82b072b09e290752d701d910ed5c6d", kill_on_drop: false }`
[INFO] [stdout] ecbf9b5b36b8fd15ad2dc4edc208dd656b82b072b09e290752d701d910ed5c6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbc1205126ec2c2b530e2c17116b0015b2fa23528b672b89f2be183acb0a6c46
[INFO] running `Command { std: "docker" "start" "-a" "fbc1205126ec2c2b530e2c17116b0015b2fa23528b672b89f2be183acb0a6c46", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tokio-uds v0.2.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]    Compiling inotify v0.6.1
[INFO] [stderr]    Compiling tokio v0.1.11
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling uuid v0.7.1
[INFO] [stderr]    Compiling hyper v0.12.13
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling dirs-sys v0.3.3
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling opaque-debug v0.2.1
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling directories v2.0.1
[INFO] [stderr]    Compiling tar v0.4.18
[INFO] [stderr]    Compiling tempfile v3.0.4
[INFO] [stderr]    Compiling env_logger v0.6.0
[INFO] [stderr]    Compiling handlebars v1.1.0
[INFO] [stderr]    Compiling notify v4.0.6
[INFO] [stderr]    Compiling structopt v0.2.15
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling toml v0.4.8
[INFO] [stderr]    Compiling pbr v1.0.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling parity-wasm v0.35.1
[INFO] [stderr]    Compiling open v1.2.2
[INFO] [stderr]    Compiling base-x v0.2.3
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling cargo_metadata v0.6.1
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.2.0
[INFO] [stderr]    Compiling websocket v0.21.1
[INFO] [stderr]    Compiling reqwest v0.9.4
[INFO] [stderr]    Compiling cargo-web v0.6.26 (/opt/rustwide/workdir)
[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]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< dyn error::Error > ),
[INFO] [stdout]    |                                +++
[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]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< dyn error::Error > )
[INFO] [stdout]    |                 +++
[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]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           +++
[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]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< dyn Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                +++
[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]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< dyn error::Error > > for Error {
[INFO] [stdout]    |                 +++
[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]    |                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< dyn error::Error > ) -> Self {
[INFO] [stdout]    |                        +++
[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]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< dyn Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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: 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: field `test` is never read
[INFO] [stdout]    --> src/lib.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 260 | struct Target {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 272 |     test: Option<String>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bench` is never constructed
[INFO] [stdout]   --> src/cargo_shim/mod.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Profile {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     Bench
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `default_package` and `used_packages` are never used
[INFO] [stdout]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stdout]     |
[INFO] [stdout] 274 | impl CargoProject {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[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: panic message is not a string literal
[INFO] [stdout]    --> src/package.rs:104:35
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( err )
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( "{}", err )
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => std::panic::panic_any( err )
[INFO] [stdout]     |                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/wasm_context.rs:871:34
[INFO] [stdout]     |
[INFO] [stdout] 871 |         for mut pointer_table in self.fn_pointer_tables {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 871 |         while let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~                 ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 871 |         if let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~                 ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "fbc1205126ec2c2b530e2c17116b0015b2fa23528b672b89f2be183acb0a6c46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbc1205126ec2c2b530e2c17116b0015b2fa23528b672b89f2be183acb0a6c46", kill_on_drop: false }`
[INFO] [stdout] fbc1205126ec2c2b530e2c17116b0015b2fa23528b672b89f2be183acb0a6c46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcffa7328c4816d00953cf880c4f9f4a8f61ad7a4b3136f8fe4aebf5f5dda15e
[INFO] running `Command { std: "docker" "start" "-a" "dcffa7328c4816d00953cf880c4f9f4a8f61ad7a4b3136f8fe4aebf5f5dda15e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< dyn error::Error > ),
[INFO] [stdout]    |                                +++
[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]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< dyn error::Error > )
[INFO] [stdout]    |                 +++
[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]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           +++
[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]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< dyn Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                +++
[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]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< dyn error::Error > > for Error {
[INFO] [stdout]    |                 +++
[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]    |                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< dyn error::Error > ) -> Self {
[INFO] [stdout]    |                        +++
[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]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< dyn Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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: 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: field `test` is never read
[INFO] [stdout]    --> src/lib.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 260 | struct Target {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 272 |     test: Option<String>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bench` is never constructed
[INFO] [stdout]   --> src/cargo_shim/mod.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Profile {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     Bench
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `default_package` and `used_packages` are never used
[INFO] [stdout]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stdout]     |
[INFO] [stdout] 274 | impl CargoProject {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[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: panic message is not a string literal
[INFO] [stdout]    --> src/package.rs:104:35
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( err )
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( "{}", err )
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => std::panic::panic_any( err )
[INFO] [stdout]     |                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling cargo-web v0.6.26 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/wasm_context.rs:871:34
[INFO] [stdout]     |
[INFO] [stdout] 871 |         for mut pointer_table in self.fn_pointer_tables {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 871 |         while let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~                 ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 871 |         if let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~                 ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[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]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< dyn error::Error > ),
[INFO] [stdout]    |                                +++
[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]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< dyn error::Error > )
[INFO] [stdout]    |                 +++
[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]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           +++
[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]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< dyn Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                +++
[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]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< dyn error::Error > > for Error {
[INFO] [stdout]    |                 +++
[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]    |                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< dyn error::Error > ) -> Self {
[INFO] [stdout]    |                        +++
[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]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< dyn Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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 method `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: 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: field `test` is never read
[INFO] [stdout]    --> src/lib.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 260 | struct Target {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 272 |     test: Option<String>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bench` is never constructed
[INFO] [stdout]   --> src/cargo_shim/mod.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Profile {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     Bench
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `default_package` and `used_packages` are never used
[INFO] [stdout]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stdout]     |
[INFO] [stdout] 274 | impl CargoProject {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[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: panic message is not a string literal
[INFO] [stdout]    --> src/package.rs:104:35
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( err )
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( "{}", err )
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => std::panic::panic_any( err )
[INFO] [stdout]     |                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/wasm_context.rs:871:34
[INFO] [stdout]     |
[INFO] [stdout] 871 |         for mut pointer_table in self.fn_pointer_tables {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 871 |         while let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~                 ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 871 |         if let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~                 ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.96s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "dcffa7328c4816d00953cf880c4f9f4a8f61ad7a4b3136f8fe4aebf5f5dda15e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcffa7328c4816d00953cf880c4f9f4a8f61ad7a4b3136f8fe4aebf5f5dda15e", kill_on_drop: false }`
[INFO] [stdout] dcffa7328c4816d00953cf880c4f9f4a8f61ad7a4b3136f8fe4aebf5f5dda15e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 78c969b1fc081c514327c0b142cfbfb1965a7808b9e48aae82c3aee5d761ac33
[INFO] running `Command { std: "docker" "start" "-a" "78c969b1fc081c514327c0b142cfbfb1965a7808b9e48aae82c3aee5d761ac33", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:12:32
[INFO] [stderr]    |
[INFO] [stderr] 12 |     RuntimeError( String, Box< error::Error > ),
[INFO] [stderr]    |                                ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 12 |     RuntimeError( String, Box< dyn error::Error > ),
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:23:17
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Other( Box< error::Error > )
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Other( Box< dyn error::Error > )
[INFO] [stderr]    |                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/http_utils.rs:54:27
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub type FnHandler = Box< Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub type FnHandler = Box< dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stderr]    |                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/http_utils.rs:53:32
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub type ResponseFuture = Box< Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub type ResponseFuture = Box< dyn Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 | impl From< Box< error::Error > > for Error {
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 53 | impl From< Box< dyn error::Error > > for Error {
[INFO] [stderr]    |                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:54:24
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn from( err: Box< error::Error > ) -> Self {
[INFO] [stderr]    |                        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn from( err: Box< dyn error::Error > ) -> Self {
[INFO] [stderr]    |                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/http_utils.rs:55:31
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub type ServiceFuture = Box< Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub type ServiceFuture = Box< dyn Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stderr]    |                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/cargo_shim/mod.rs:267:86
[INFO] [stderr]     |
[INFO] [stderr] 267 |             Error::CannotLaunchCargo( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stderr]     |                                                                                      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/cargo_shim/mod.rs:268:80
[INFO] [stderr]     |
[INFO] [stderr] 268 |             Error::CargoFailed( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stderr]     |                                                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/cargo_shim/mod.rs:269:91
[INFO] [stderr]     |
[INFO] [stderr] 269 |             Error::CannotParseCargoOutput( ref err ) => write!( formatter, "{}: {}", self.description(), err )
[INFO] [stderr]     |                                                                                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/chrome_devtools.rs:34:93
[INFO] [stderr]    |
[INFO] [stderr] 34 |             ConnectionError::FailedToFetchUrl( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stderr]    |                                                                                             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/chrome_devtools.rs:35:91
[INFO] [stderr]    |
[INFO] [stderr] 35 |             ConnectionError::WebSocketError( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stderr]    |                                                                                           ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/chrome_devtools.rs:70:84
[INFO] [stderr]    |
[INFO] [stderr] 70 |             CommunicationError::Send( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stderr]    |                                                                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/chrome_devtools.rs:71:84
[INFO] [stderr]    |
[INFO] [stderr] 71 |             CommunicationError::Recv( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stderr]    |                                                                                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/chrome_devtools.rs:98:60
[INFO] [stderr]    |
[INFO] [stderr] 98 |             ReplyError::Timeout => write!( fmt, "{}", self.description() ),
[INFO] [stderr]    |                                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/chrome_devtools.rs:99:86
[INFO] [stderr]    |
[INFO] [stderr] 99 |             ReplyError::MalformedMessage( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stderr]    |                                                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/chrome_devtools.rs:100:83
[INFO] [stderr]     |
[INFO] [stderr] 100 |             ReplyError::MalformedJson( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stderr]     |                                                                                   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/chrome_devtools.rs:101:88
[INFO] [stderr]     |
[INFO] [stderr] 101 |             ReplyError::CommunicationError( ref error ) => write!( fmt, "{}: {}", self.description(), error )
[INFO] [stderr]     |                                                                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:35:57
[INFO] [stderr]    |
[INFO] [stderr] 35 |             Error::CargoShimError( ref error ) => error.description(),
[INFO] [stderr]    |                                                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:42:48
[INFO] [stderr]    |
[INFO] [stderr] 42 |             Error::Other( ref error ) => error.description()
[INFO] [stderr]    |                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:75:87
[INFO] [stderr]    |
[INFO] [stderr] 75 |             &Error::RuntimeError( _, ref inner ) => write!( formatter, "{}: {}", self.description(), inner ),
[INFO] [stderr]    |                                                                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:85:48
[INFO] [stderr]    |
[INFO] [stderr] 85 |             _ => write!( formatter, "{}", self.description() )
[INFO] [stderr]    |                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cargo_shim/mod.rs:924:13
[INFO] [stderr]     |
[INFO] [stderr] 924 |         for mut artifact in artifacts {
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/wasm_context.rs:541:38
[INFO] [stderr]     |
[INFO] [stderr] 541 |                 pw::Section::Export( mut section ) => {
[INFO] [stderr]     |                                      ----^^^^^^^
[INFO] [stderr]     |                                      |
[INFO] [stderr]     |                                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/wasm_context.rs:579:40
[INFO] [stderr]     |
[INFO] [stderr] 579 |                 pw::Section::Function( mut section ) => {
[INFO] [stderr]     |                                        ----^^^^^^^
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field `test` is never read
[INFO] [stderr]    --> src/lib.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 260 | struct Target {
[INFO] [stderr]     |        ------ field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 272 |     test: Option<String>,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Bench` is never constructed
[INFO] [stderr]   --> src/cargo_shim/mod.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub enum Profile {
[INFO] [stderr]    |          ------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 37 |     Bench
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: methods `default_package` and `used_packages` are never used
[INFO] [stderr]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stderr]     |
[INFO] [stderr] 274 | impl CargoProject {
[INFO] [stderr]     | ----------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 452 |     pub fn used_packages( &self, triplet: &str, main_package: &CargoPackage, profile: Profile ) -> Vec< &CargoPackage > {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/package.rs:104:35
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Err( err ) => panic!( err )
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Err( err ) => panic!( "{}", err )
[INFO] [stderr]     |                                   +++++
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 104 |             Err( err ) => std::panic::panic_any( err )
[INFO] [stderr]     |                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/wasm_context.rs:871:34
[INFO] [stderr]     |
[INFO] [stderr] 871 |         for mut pointer_table in self.fn_pointer_tables {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 871 |         while let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stderr]     |         ~~~~~~~~~~~~~~~                 ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 871 |         if let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stderr]     |         ~~~~~~~~~~~~                 ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: `cargo-web` (lib) generated 30 warnings (run `cargo fix --lib -p cargo-web` to apply 11 suggestions)
[INFO] [stderr] warning: `cargo-web` (lib test) generated 30 warnings (30 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cargo_web-620e8a216109e72f)
[INFO] [stdout] running 5 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cargo_web-bc9d5bef4c319420)
[INFO] [stdout] test cargo_shim::diagnostic_formatter::test_basic_error ... ok
[INFO] [stderr]    Doc-tests cargo-web
[INFO] [stdout] test cargo_shim::diagnostic_formatter::test_basic_multiline ... ok
[INFO] [stdout] test cargo_shim::diagnostic_formatter::test_long_multiline ... ok
[INFO] [stdout] test wasm_context::test_function_import_removal ... ok
[INFO] [stdout] test wasm_context::test_serialization_deserialization ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "78c969b1fc081c514327c0b142cfbfb1965a7808b9e48aae82c3aee5d761ac33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78c969b1fc081c514327c0b142cfbfb1965a7808b9e48aae82c3aee5d761ac33", kill_on_drop: false }`
[INFO] [stdout] 78c969b1fc081c514327c0b142cfbfb1965a7808b9e48aae82c3aee5d761ac33
