[INFO] updating cached repository https://github.com/Sustrak/LuL [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6496b5712741dbf76397d9013e8c300aa4480811 [INFO] checking Sustrak/LuL against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FSustrak%2FLuL" "work/builds/worker-4/source"` [INFO] [stderr] Cloning into 'work/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Sustrak/LuL on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/Sustrak/LuL [INFO] finished tweaking git repo https://github.com/Sustrak/LuL [INFO] tweaked toml for git repo https://github.com/Sustrak/LuL written to work/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/Sustrak/LuL already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] dfa09fd47bcb7422b1d47004f61bef773a9b3661532695913425589eca26035a [INFO] running `"docker" "start" "-a" "dfa09fd47bcb7422b1d47004f61bef773a9b3661532695913425589eca26035a"` [INFO] [stderr] Compiling error-chain v0.7.2 [INFO] [stderr] Compiling pkg-config v0.3.9 [INFO] [stderr] Compiling toml v0.2.1 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Checking matches v0.1.4 [INFO] [stderr] Checking libc v0.2.20 [INFO] [stderr] Compiling openssl v0.9.6 [INFO] [stderr] Checking unicode-normalization v0.1.4 [INFO] [stderr] Checking lazy_static v0.2.2 [INFO] [stderr] Checking log v0.3.6 [INFO] [stderr] Checking httparse v1.2.1 [INFO] [stderr] Checking traitobject v0.0.1 [INFO] [stderr] Checking rustc-serialize v0.3.22 [INFO] [stderr] Checking language-tags v0.2.2 [INFO] [stderr] Checking typeable v0.1.2 [INFO] [stderr] Checking antidote v1.0.0 [INFO] [stderr] Checking num-traits v0.1.36 [INFO] [stderr] Checking itoa v0.3.1 [INFO] [stderr] Checking dtoa v0.4.1 [INFO] [stderr] Checking serde v0.9.6 [INFO] [stderr] Checking unicode-bidi v0.2.4 [INFO] [stderr] Checking mime v0.2.2 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling metadeps v1.1.1 [INFO] [stderr] Checking num_cpus v1.2.1 [INFO] [stderr] Checking time v0.1.36 [INFO] [stderr] Checking idna v0.1.0 [INFO] [stderr] Compiling openssl-sys v0.9.6 [INFO] [stderr] Compiling unicase v1.4.0 [INFO] [stderr] Compiling hyper v0.10.4 [INFO] [stderr] Checking url v1.4.0 [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/rustwide/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] Checking native-tls v0.1.1 [INFO] [stderr] Checking serde_json v0.9.5 [INFO] [stderr] Checking hyper-native-tls v0.2.2 [INFO] [stderr] Checking LUL v0.1.0 (/opt/rustwide/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: 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] 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 33.18s [INFO] running `"docker" "inspect" "dfa09fd47bcb7422b1d47004f61bef773a9b3661532695913425589eca26035a"` [INFO] running `"docker" "rm" "-f" "dfa09fd47bcb7422b1d47004f61bef773a9b3661532695913425589eca26035a"` [INFO] [stdout] dfa09fd47bcb7422b1d47004f61bef773a9b3661532695913425589eca26035a