[INFO] updating cached repository Regan-Koopmans/assign-serv [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Regan-Koopmans/assign-serv [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Regan-Koopmans/assign-serv" "work/ex/beta-1.38-1/sources/1.37.0/gh/Regan-Koopmans/assign-serv"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Regan-Koopmans/assign-serv'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Regan-Koopmans/assign-serv" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Regan-Koopmans/assign-serv"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Regan-Koopmans/assign-serv'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2f61d425643c8ef27a1c02328632cbd3fdae5c2c [INFO] sha for GitHub repo Regan-Koopmans/assign-serv: 2f61d425643c8ef27a1c02328632cbd3fdae5c2c [INFO] validating manifest of Regan-Koopmans/assign-serv 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 Regan-Koopmans/assign-serv 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 Regan-Koopmans/assign-serv [INFO] finished frobbing Regan-Koopmans/assign-serv [INFO] frobbed toml for Regan-Koopmans/assign-serv written to work/ex/beta-1.38-1/sources/1.37.0/gh/Regan-Koopmans/assign-serv/Cargo.toml [INFO] started frobbing Regan-Koopmans/assign-serv [INFO] finished frobbing Regan-Koopmans/assign-serv [INFO] frobbed toml for Regan-Koopmans/assign-serv written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Regan-Koopmans/assign-serv/Cargo.toml [INFO] crate Regan-Koopmans/assign-serv 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 Regan-Koopmans/assign-serv 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Regan-Koopmans/assign-serv:/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] f4a7e566cfb76f630aa37faf81819bc6fc223eb24c17d00c3146567dae6aebb1 [INFO] running `"docker" "start" "-a" "f4a7e566cfb76f630aa37faf81819bc6fc223eb24c17d00c3146567dae6aebb1"` [INFO] [stderr] Compiling urlparse v0.7.3 [INFO] [stderr] Compiling json v0.11.6 [INFO] [stderr] Compiling idna v0.1.0 (https://github.com/servo/rust-url#7b87128f) [INFO] [stderr] Compiling url v1.4.0 (https://github.com/servo/rust-url#7b87128f) [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/git/checkouts/rust-url-3ddac0958e207dae/7b87128/src/form_urlencoded.rs:248:40 [INFO] [stderr] | [INFO] [stderr] 246 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 247 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 248 | 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 assign-server v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `param` [INFO] [stderr] --> src/main.rs:170:26 [INFO] [stderr] | [INFO] [stderr] 170 | fn get_data(input: &str, param: &str) -> String { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_param` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `param_line` [INFO] [stderr] --> src/main.rs:243:13 [INFO] [stderr] | [INFO] [stderr] 243 | let mut param_line:Vec<&str>; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_param_line` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `param` [INFO] [stderr] --> src/main.rs:283:9 [INFO] [stderr] | [INFO] [stderr] 283 | fn edit(param: &Vec<&str>) { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_param` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:239:9 [INFO] [stderr] | [INFO] [stderr] 239 | let mut file = File::open("dat/regan.json").unwrap(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:242:9 [INFO] [stderr] | [INFO] [stderr] 242 | let mut parsed = json::parse(&file_string).unwrap(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.71s [INFO] running `"docker" "inspect" "f4a7e566cfb76f630aa37faf81819bc6fc223eb24c17d00c3146567dae6aebb1"` [INFO] running `"docker" "rm" "-f" "f4a7e566cfb76f630aa37faf81819bc6fc223eb24c17d00c3146567dae6aebb1"` [INFO] [stdout] f4a7e566cfb76f630aa37faf81819bc6fc223eb24c17d00c3146567dae6aebb1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Regan-Koopmans/assign-serv:/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" "test" "--frozen" "--no-run"` [INFO] [stdout] cfca0ea518080f8d17efc45c9d4c16d7341f4f2469520cead30f27b2daf4e340 [INFO] running `"docker" "start" "-a" "cfca0ea518080f8d17efc45c9d4c16d7341f4f2469520cead30f27b2daf4e340"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling assign-server v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `param` [INFO] [stderr] --> src/main.rs:170:26 [INFO] [stderr] | [INFO] [stderr] 170 | fn get_data(input: &str, param: &str) -> String { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_param` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `param_line` [INFO] [stderr] --> src/main.rs:243:13 [INFO] [stderr] | [INFO] [stderr] 243 | let mut param_line:Vec<&str>; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_param_line` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `param` [INFO] [stderr] --> src/main.rs:283:9 [INFO] [stderr] | [INFO] [stderr] 283 | fn edit(param: &Vec<&str>) { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_param` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:239:9 [INFO] [stderr] | [INFO] [stderr] 239 | let mut file = File::open("dat/regan.json").unwrap(); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:242:9 [INFO] [stderr] | [INFO] [stderr] 242 | let mut parsed = json::parse(&file_string).unwrap(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.60s [INFO] running `"docker" "inspect" "cfca0ea518080f8d17efc45c9d4c16d7341f4f2469520cead30f27b2daf4e340"` [INFO] running `"docker" "rm" "-f" "cfca0ea518080f8d17efc45c9d4c16d7341f4f2469520cead30f27b2daf4e340"` [INFO] [stdout] cfca0ea518080f8d17efc45c9d4c16d7341f4f2469520cead30f27b2daf4e340 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Regan-Koopmans/assign-serv:/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" "test" "--frozen"` [INFO] [stdout] c8988111021cd2097cfbe9611c9b91f2f88b4022cc69e5ac8b65f91b06b6d56a [INFO] running `"docker" "start" "-a" "c8988111021cd2097cfbe9611c9b91f2f88b4022cc69e5ac8b65f91b06b6d56a"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/assign_server-516e27b651b60e56 [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" "c8988111021cd2097cfbe9611c9b91f2f88b4022cc69e5ac8b65f91b06b6d56a"` [INFO] running `"docker" "rm" "-f" "c8988111021cd2097cfbe9611c9b91f2f88b4022cc69e5ac8b65f91b06b6d56a"` [INFO] [stdout] c8988111021cd2097cfbe9611c9b91f2f88b4022cc69e5ac8b65f91b06b6d56a