[INFO] updating cached repository keatinge/rust-twilio-script [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/keatinge/rust-twilio-script [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/keatinge/rust-twilio-script" "work/ex/beta-1.38-1/sources/1.37.0/gh/keatinge/rust-twilio-script"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/keatinge/rust-twilio-script'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/keatinge/rust-twilio-script" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/keatinge/rust-twilio-script"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/keatinge/rust-twilio-script'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 8872065bb4355bf652d60a9a2e9385dbb2ee04e6 [INFO] sha for GitHub repo keatinge/rust-twilio-script: 8872065bb4355bf652d60a9a2e9385dbb2ee04e6 [INFO] validating manifest of keatinge/rust-twilio-script on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of keatinge/rust-twilio-script on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing keatinge/rust-twilio-script [INFO] finished frobbing keatinge/rust-twilio-script [INFO] frobbed toml for keatinge/rust-twilio-script written to work/ex/beta-1.38-1/sources/1.37.0/gh/keatinge/rust-twilio-script/Cargo.toml [INFO] started frobbing keatinge/rust-twilio-script [INFO] finished frobbing keatinge/rust-twilio-script [INFO] frobbed toml for keatinge/rust-twilio-script written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/keatinge/rust-twilio-script/Cargo.toml [INFO] crate keatinge/rust-twilio-script already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing keatinge/rust-twilio-script against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/keatinge/rust-twilio-script:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 388e0ea90f152f549a001888f0063822d0acad069e062ca41ab7341fc6093d2e [INFO] running `"docker" "start" "-a" "388e0ea90f152f549a001888f0063822d0acad069e062ca41ab7341fc6093d2e"` [INFO] [stderr] Compiling openssl v0.9.23 [INFO] [stderr] Compiling iovec v0.1.1 [INFO] [stderr] Compiling rand v0.3.20 [INFO] [stderr] Compiling memchr v2.0.1 [INFO] [stderr] Compiling time v0.1.39 [INFO] [stderr] Compiling openssl-sys v0.9.24 [INFO] [stderr] Compiling net2 v0.2.31 [INFO] [stderr] Compiling tokio-service v0.1.0 [INFO] [stderr] Compiling relay v0.1.0 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling bytes v0.4.6 [INFO] [stderr] Compiling aho-corasick v0.6.4 [INFO] [stderr] Compiling url v1.6.0 [INFO] [stderr] Compiling mio v0.6.12 [INFO] [stderr] Compiling regex v0.2.5 [INFO] [stderr] Compiling tokio-io v0.1.4 [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.6.0/src/form_urlencoded.rs:261:40 [INFO] [stderr] | [INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 260 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 261 | fn finish(self) -> &'a mut ::Url { self.url } [INFO] [stderr] | ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait [INFO] [stderr] | | [INFO] [stderr] | returning this value requires that `*self.url` is borrowed for `'a` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Compiling tokio-core v0.1.12 [INFO] [stderr] Compiling tokio-proto v0.1.1 [INFO] [stderr] Compiling native-tls v0.1.5 [INFO] [stderr] Compiling tokio-tls v0.1.4 [INFO] [stderr] Compiling hyper v0.11.13 [INFO] [stderr] Compiling hyper-tls v0.1.2 [INFO] [stderr] Compiling twilio_2 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(conservative_impl_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type parameter `CTX_T` should have an upper camel case name [INFO] [stderr] --> src/ctxmgr.rs:13:27 [INFO] [stderr] | [INFO] [stderr] 13 | pub struct ContextManager where CTX_T : Context { [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `CtxT` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_camel_case_types)] on by default [INFO] [stderr] [INFO] [stderr] warning: type parameter `CTX_T` should have an upper camel case name [INFO] [stderr] --> src/ctxmgr.rs:12:10 [INFO] [stderr] | [INFO] [stderr] 12 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `CtxT` [INFO] [stderr] [INFO] [stderr] warning: type parameter `CTX_T` should have an upper camel case name [INFO] [stderr] --> src/ctxmgr.rs:18:6 [INFO] [stderr] | [INFO] [stderr] 18 | impl ContextManager where CTX_T: Context + ::std::fmt::Debug { [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `CtxT` [INFO] [stderr] [INFO] [stderr] warning: unused import: `Basic` [INFO] [stderr] --> src/twiml.rs:5:21 [INFO] [stderr] | [INFO] [stderr] 5 | use hyper::header::{Basic, ContentType, ContentLength}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:164:23 [INFO] [stderr] | [INFO] [stderr] 164 | type Future = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn futures::Future` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: type parameter `CTX_T` should have an upper camel case name [INFO] [stderr] --> src/main.rs:206:21 [INFO] [stderr] | [INFO] [stderr] 206 | struct ServiceMaker where CTX_T : ctxmgr::Context { [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `CtxT` [INFO] [stderr] [INFO] [stderr] warning: type parameter `CTX_T` should have an upper camel case name [INFO] [stderr] --> src/main.rs:212:6 [INFO] [stderr] | [INFO] [stderr] 212 | impl ServiceMaker where CTX_T : ctxmgr::Context { [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `CtxT` [INFO] [stderr] [INFO] [stderr] warning: type parameter `CTX_T` should have an upper camel case name [INFO] [stderr] --> src/main.rs:222:6 [INFO] [stderr] | [INFO] [stderr] 222 | impl hyper::server::NewService for ServiceMaker where CTX_T : ctxmgr::Context + std::fmt::Debug + 'static { [INFO] [stderr] | ^^^^^ help: convert the identifier to upper camel case: `CtxT` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `twilio_2`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "388e0ea90f152f549a001888f0063822d0acad069e062ca41ab7341fc6093d2e"` [INFO] running `"docker" "rm" "-f" "388e0ea90f152f549a001888f0063822d0acad069e062ca41ab7341fc6093d2e"` [INFO] [stdout] 388e0ea90f152f549a001888f0063822d0acad069e062ca41ab7341fc6093d2e