[INFO] updating cached repository Sustrak/LuL [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Sustrak/LuL [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Sustrak/LuL" "work/ex/beta-1.37-6/sources/1.36.0/gh/Sustrak/LuL"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Sustrak/LuL'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Sustrak/LuL" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Sustrak/LuL"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Sustrak/LuL'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6496b5712741dbf76397d9013e8c300aa4480811 [INFO] sha for GitHub repo Sustrak/LuL: 6496b5712741dbf76397d9013e8c300aa4480811 [INFO] validating manifest of Sustrak/LuL on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Sustrak/LuL on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Sustrak/LuL [INFO] finished frobbing Sustrak/LuL [INFO] frobbed toml for Sustrak/LuL written to work/ex/beta-1.37-6/sources/1.36.0/gh/Sustrak/LuL/Cargo.toml [INFO] started frobbing Sustrak/LuL [INFO] finished frobbing Sustrak/LuL [INFO] frobbed toml for Sustrak/LuL written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Sustrak/LuL/Cargo.toml [INFO] crate Sustrak/LuL already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing Sustrak/LuL against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Sustrak/LuL:/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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] e15cf7d43ed5af7f391594bc2bba5aebdfa7a0c79e7a021c3671b155e5230e8d [INFO] running `"docker" "start" "-a" "e15cf7d43ed5af7f391594bc2bba5aebdfa7a0c79e7a021c3671b155e5230e8d"` [INFO] [stderr] Compiling error-chain v0.7.2 [INFO] [stderr] Compiling openssl v0.9.6 [INFO] [stderr] Compiling serde v0.9.6 [INFO] [stderr] Compiling idna v0.1.0 [INFO] [stderr] Compiling metadeps v1.1.1 [INFO] [stderr] Compiling openssl-sys v0.9.6 [INFO] [stderr] Compiling url v1.4.0 [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-1.4.0/src/form_urlencoded.rs:246:40 [INFO] [stderr] | [INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 245 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 246 | 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 hyper v0.10.4 [INFO] [stderr] Compiling native-tls v0.1.1 [INFO] [stderr] Compiling serde_json v0.9.5 [INFO] [stderr] Compiling hyper-native-tls v0.2.2 [INFO] [stderr] Compiling LUL v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `ret` [INFO] [stderr] --> src/main.rs:70:14 [INFO] [stderr] | [INFO] [stderr] 70 | let (ret, json) = get(url, &client); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ret` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ret` [INFO] [stderr] --> src/main.rs:80:14 [INFO] [stderr] | [INFO] [stderr] 80 | let (ret, json) = get(url, &client); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ret` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `url` is never read [INFO] [stderr] --> src/main.rs:120:13 [INFO] [stderr] | [INFO] [stderr] 120 | let mut url = String::new(); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: crate `LUL` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `lul` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | io::stdin().read_line(&mut summ_name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | io::stdin().read_line(&mut aux); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | io::stdin().read_line(&mut aux); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:109:5 [INFO] [stderr] | [INFO] [stderr] 109 | io::stdin().read_line(&mut aux); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 30.84s [INFO] running `"docker" "inspect" "e15cf7d43ed5af7f391594bc2bba5aebdfa7a0c79e7a021c3671b155e5230e8d"` [INFO] running `"docker" "rm" "-f" "e15cf7d43ed5af7f391594bc2bba5aebdfa7a0c79e7a021c3671b155e5230e8d"` [INFO] [stdout] e15cf7d43ed5af7f391594bc2bba5aebdfa7a0c79e7a021c3671b155e5230e8d [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Sustrak/LuL:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"` [INFO] [stdout] ef3c5beccbee514f3abdc26cc10a2a80f56a7063971fdb71fb764ea0966e288a [INFO] running `"docker" "start" "-a" "ef3c5beccbee514f3abdc26cc10a2a80f56a7063971fdb71fb764ea0966e288a"` [INFO] [stderr] Compiling LUL v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `ret` [INFO] [stderr] --> src/main.rs:70:14 [INFO] [stderr] | [INFO] [stderr] 70 | let (ret, json) = get(url, &client); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ret` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ret` [INFO] [stderr] --> src/main.rs:80:14 [INFO] [stderr] | [INFO] [stderr] 80 | let (ret, json) = get(url, &client); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ret` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `url` is never read [INFO] [stderr] --> src/main.rs:120:13 [INFO] [stderr] | [INFO] [stderr] 120 | let mut url = String::new(); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: crate `LUL` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `lul` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | io::stdin().read_line(&mut summ_name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | io::stdin().read_line(&mut aux); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | io::stdin().read_line(&mut aux); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:109:5 [INFO] [stderr] | [INFO] [stderr] 109 | io::stdin().read_line(&mut aux); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.15s [INFO] running `"docker" "inspect" "ef3c5beccbee514f3abdc26cc10a2a80f56a7063971fdb71fb764ea0966e288a"` [INFO] running `"docker" "rm" "-f" "ef3c5beccbee514f3abdc26cc10a2a80f56a7063971fdb71fb764ea0966e288a"` [INFO] [stdout] ef3c5beccbee514f3abdc26cc10a2a80f56a7063971fdb71fb764ea0966e288a [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Sustrak/LuL:/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" "+beta-2019-07-23" "test" "--frozen"` [INFO] [stdout] 248d4653af581c571aeb08146e705edacce563a37a000e72f8fcd007cdce66e4 [INFO] running `"docker" "start" "-a" "248d4653af581c571aeb08146e705edacce563a37a000e72f8fcd007cdce66e4"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running /opt/crater/target/debug/deps/LUL-fea8fd197a072ada [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "248d4653af581c571aeb08146e705edacce563a37a000e72f8fcd007cdce66e4"` [INFO] running `"docker" "rm" "-f" "248d4653af581c571aeb08146e705edacce563a37a000e72f8fcd007cdce66e4"` [INFO] [stdout] 248d4653af581c571aeb08146e705edacce563a37a000e72f8fcd007cdce66e4