Dec 13 15:35:49.798 INFO testing jharrilim/rustler against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 15:35:49.798 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 13 15:35:50.082 INFO [stdout] 9bda7c54362f924448642d062cb32068f0a3e26c256381f11b0c0c205fb307d2
Dec 13 15:35:50.087 INFO running `"docker" "start" "-a" "9bda7c54362f924448642d062cb32068f0a3e26c256381f11b0c0c205fb307d2"`
Dec 13 15:35:50.886 INFO [stderr] usermod: no changes
Dec 13 15:35:50.941 INFO [stderr]    Compiling rustler v0.1.0 (/source)
Dec 13 15:35:51.210 INFO [stderr] warning: unused imports: `IpAddr`, `TcpStream`
Dec 13 15:35:51.210 INFO [stderr]  --> src/http/request.rs:5:5
Dec 13 15:35:51.210 INFO [stderr]   |
Dec 13 15:35:51.210 INFO [stderr] 5 |     IpAddr,
Dec 13 15:35:51.210 INFO [stderr]   |     ^^^^^^
Dec 13 15:35:51.210 INFO [stderr] 6 |     TcpStream,
Dec 13 15:35:51.210 INFO [stderr]   |     ^^^^^^^^^
Dec 13 15:35:51.210 INFO [stderr]   |
Dec 13 15:35:51.210 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 15:35:51.210 INFO [stderr] 
Dec 13 15:35:51.210 INFO [stderr] warning: unused import: `std::net::TcpStream`
Dec 13 15:35:51.210 INFO [stderr]  --> src/http/client.rs:1:5
Dec 13 15:35:51.210 INFO [stderr]   |
Dec 13 15:35:51.210 INFO [stderr] 1 | use std::net::TcpStream;
Dec 13 15:35:51.210 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 13 15:35:51.211 INFO [stderr] 
Dec 13 15:35:51.263 INFO [stderr] error[E0599]: no method named `add` found for type `std::string::String` in the current scope
Dec 13 15:35:51.263 INFO [stderr]   --> src/http/request.rs:32:23
Dec 13 15:35:51.263 INFO [stderr]    |
Dec 13 15:35:51.263 INFO [stderr] 32 |             msg = msg.add(format!("{}:{}\r\n", k, v).as_str())
Dec 13 15:35:51.263 INFO [stderr]    |                       ^^^
Dec 13 15:35:51.263 INFO [stderr]    |
Dec 13 15:35:51.263 INFO [stderr]    = help: items from traits can only be used if the trait is in scope
Dec 13 15:35:51.263 INFO [stderr]    = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
Dec 13 15:35:51.263 INFO [stderr]            `use std::ops::Add;`
Dec 13 15:35:51.263 INFO [stderr] 
Dec 13 15:35:51.263 INFO [stderr] error[E0599]: no method named `add` found for type `std::string::String` in the current scope
Dec 13 15:35:51.263 INFO [stderr]   --> src/http/request.rs:34:19
Dec 13 15:35:51.263 INFO [stderr]    |
Dec 13 15:35:51.263 INFO [stderr] 34 |         msg = msg.add(self.body.as_str());
Dec 13 15:35:51.263 INFO [stderr]    |                   ^^^
Dec 13 15:35:51.263 INFO [stderr]    |
Dec 13 15:35:51.263 INFO [stderr]    = help: items from traits can only be used if the trait is in scope
Dec 13 15:35:51.263 INFO [stderr]    = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
Dec 13 15:35:51.263 INFO [stderr]            `use std::ops::Add;`
Dec 13 15:35:51.263 INFO [stderr] 
Dec 13 15:35:51.267 INFO [stderr] error: aborting due to 2 previous errors
Dec 13 15:35:51.267 INFO [stderr] 
Dec 13 15:35:51.267 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 13 15:35:51.275 INFO [stderr] error: Could not compile `rustler`.
Dec 13 15:35:51.275 INFO [stderr] 
Dec 13 15:35:51.275 INFO [stderr] To learn more, run the command again with --verbose.
Dec 13 15:35:51.276 INFO [stderr] su: No module specific data is present
Dec 13 15:35:51.607 INFO running `"docker" "inspect" "9bda7c54362f924448642d062cb32068f0a3e26c256381f11b0c0c205fb307d2"`
Dec 13 15:35:51.800 INFO running `"docker" "rm" "-f" "9bda7c54362f924448642d062cb32068f0a3e26c256381f11b0c0c205fb307d2"`
Dec 13 15:35:52.019 INFO [stdout] 9bda7c54362f924448642d062cb32068f0a3e26c256381f11b0c0c205fb307d2