Dec 13 15:35:49.424 INFO testing jharrilim/rustler against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 15:35:49.424 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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 15:35:49.771 INFO [stdout] 8b2700b66207d637673b0e9058f62555aac44295eaf15ba4236623ccd10cbb24
Dec 13 15:35:49.777 INFO running `"docker" "start" "-a" "8b2700b66207d637673b0e9058f62555aac44295eaf15ba4236623ccd10cbb24"`
Dec 13 15:35:50.580 INFO [stderr] usermod: no changes
Dec 13 15:35:50.627 INFO [stderr]    Compiling rustler v0.1.0 (/source)
Dec 13 15:35:50.947 INFO [stderr] warning: unused imports: `IpAddr`, `TcpStream`
Dec 13 15:35:50.947 INFO [stderr]  --> src/http/request.rs:5:5
Dec 13 15:35:50.947 INFO [stderr]   |
Dec 13 15:35:50.947 INFO [stderr] 5 |     IpAddr,
Dec 13 15:35:50.947 INFO [stderr]   |     ^^^^^^
Dec 13 15:35:50.947 INFO [stderr] 6 |     TcpStream,
Dec 13 15:35:50.947 INFO [stderr]   |     ^^^^^^^^^
Dec 13 15:35:50.947 INFO [stderr]   |
Dec 13 15:35:50.947 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 15:35:50.947 INFO [stderr] 
Dec 13 15:35:50.947 INFO [stderr] warning: unused import: `std::net::TcpStream`
Dec 13 15:35:50.947 INFO [stderr]  --> src/http/client.rs:1:5
Dec 13 15:35:50.947 INFO [stderr]   |
Dec 13 15:35:50.947 INFO [stderr] 1 | use std::net::TcpStream;
Dec 13 15:35:50.947 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 13 15:35:50.947 INFO [stderr] 
Dec 13 15:35:50.997 INFO [stderr] error[E0599]: no method named `add` found for type `std::string::String` in the current scope
Dec 13 15:35:50.997 INFO [stderr]   --> src/http/request.rs:32:23
Dec 13 15:35:50.997 INFO [stderr]    |
Dec 13 15:35:50.997 INFO [stderr] 32 |             msg = msg.add(format!("{}:{}\r\n", k, v).as_str())
Dec 13 15:35:50.997 INFO [stderr]    |                       ^^^
Dec 13 15:35:50.997 INFO [stderr]    |
Dec 13 15:35:50.997 INFO [stderr]    = help: items from traits can only be used if the trait is in scope
Dec 13 15:35:50.997 INFO [stderr]    = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
Dec 13 15:35:50.997 INFO [stderr]            `use std::ops::Add;`
Dec 13 15:35:50.997 INFO [stderr] 
Dec 13 15:35:50.999 INFO [stderr] error[E0599]: no method named `add` found for type `std::string::String` in the current scope
Dec 13 15:35:50.999 INFO [stderr]   --> src/http/request.rs:34:19
Dec 13 15:35:50.999 INFO [stderr]    |
Dec 13 15:35:50.999 INFO [stderr] 34 |         msg = msg.add(self.body.as_str());
Dec 13 15:35:50.999 INFO [stderr]    |                   ^^^
Dec 13 15:35:50.999 INFO [stderr]    |
Dec 13 15:35:50.999 INFO [stderr]    = help: items from traits can only be used if the trait is in scope
Dec 13 15:35:50.999 INFO [stderr]    = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
Dec 13 15:35:50.999 INFO [stderr]            `use std::ops::Add;`
Dec 13 15:35:50.999 INFO [stderr] 
Dec 13 15:35:51.002 INFO [stderr] error: aborting due to 2 previous errors
Dec 13 15:35:51.002 INFO [stderr] 
Dec 13 15:35:51.002 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 13 15:35:51.008 INFO [stderr] error: Could not compile `rustler`.
Dec 13 15:35:51.008 INFO [stderr] 
Dec 13 15:35:51.008 INFO [stderr] To learn more, run the command again with --verbose.
Dec 13 15:35:51.010 INFO [stderr] su: No module specific data is present
Dec 13 15:35:51.452 INFO running `"docker" "inspect" "8b2700b66207d637673b0e9058f62555aac44295eaf15ba4236623ccd10cbb24"`
Dec 13 15:35:51.675 INFO running `"docker" "rm" "-f" "8b2700b66207d637673b0e9058f62555aac44295eaf15ba4236623ccd10cbb24"`
Dec 13 15:35:51.870 INFO [stdout] 8b2700b66207d637673b0e9058f62555aac44295eaf15ba4236623ccd10cbb24