[INFO] crate typedopts 1.1.2 is already in cache [INFO] extracting crate typedopts 1.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/typedopts/1.1.2 [INFO] extracting crate typedopts 1.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/typedopts/1.1.2 [INFO] validating manifest of typedopts-1.1.2 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 typedopts-1.1.2 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 typedopts-1.1.2 [INFO] finished frobbing typedopts-1.1.2 [INFO] frobbed toml for typedopts-1.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/typedopts/1.1.2/Cargo.toml [INFO] started frobbing typedopts-1.1.2 [INFO] finished frobbing typedopts-1.1.2 [INFO] frobbed toml for typedopts-1.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/typedopts/1.1.2/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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 typedopts-1.1.2 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/typedopts/1.1.2:/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] f75e495cf87863840def2bb38fbeb05fcc9068024a4072163ec46fabf9036b36 [INFO] running `"docker" "start" "-a" "f75e495cf87863840def2bb38fbeb05fcc9068024a4072163ec46fabf9036b36"` [INFO] [stderr] Compiling typedopts v1.1.2 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `field` [INFO] [stderr] --> src/lib.rs:67:34 [INFO] [stderr] | [INFO] [stderr] 67 | fn get_field(&self, field: &str) -> Option { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_field` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_idx` [INFO] [stderr] --> src/lib.rs:163:45 [INFO] [stderr] | [INFO] [stderr] 163 | fn read_enum_variant_arg(&mut self, a_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_a_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `names` [INFO] [stderr] --> src/lib.rs:169:48 [INFO] [stderr] | [INFO] [stderr] 169 | fn read_enum_struct_variant(&mut self, names: &[&str], f: F) -> DecodeResult where F: FnOnce(&mut Decoder, usize) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_names` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f_name` [INFO] [stderr] --> src/lib.rs:175:54 [INFO] [stderr] | [INFO] [stderr] 175 | fn read_enum_struct_variant_field(&mut self, f_name: &str, f_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_f_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f_idx` [INFO] [stderr] --> src/lib.rs:175:68 [INFO] [stderr] | [INFO] [stderr] 175 | fn read_enum_struct_variant_field(&mut self, f_name: &str, f_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_f_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/lib.rs:181:49 [INFO] [stderr] | [INFO] [stderr] 181 | fn read_struct(&mut self, s_name: &str, len: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f_idx` [INFO] [stderr] --> src/lib.rs:187:55 [INFO] [stderr] | [INFO] [stderr] 187 | fn read_struct_field(&mut self, f_name: &str, f_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_f_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tuple_len` [INFO] [stderr] --> src/lib.rs:210:35 [INFO] [stderr] | [INFO] [stderr] 210 | fn read_tuple(&mut self, tuple_len: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_tuple_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_idx` [INFO] [stderr] --> src/lib.rs:215:38 [INFO] [stderr] | [INFO] [stderr] 215 | fn read_tuple_arg(&mut self, a_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_a_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s_name` [INFO] [stderr] --> src/lib.rs:220:41 [INFO] [stderr] | [INFO] [stderr] 220 | fn read_tuple_struct(&mut self, s_name: &str, len:usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_s_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/lib.rs:220:55 [INFO] [stderr] | [INFO] [stderr] 220 | fn read_tuple_struct(&mut self, s_name: &str, len:usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_idx` [INFO] [stderr] --> src/lib.rs:225:45 [INFO] [stderr] | [INFO] [stderr] 225 | fn read_tuple_struct_arg(&mut self, a_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_a_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `idx` [INFO] [stderr] --> src/lib.rs:236:36 [INFO] [stderr] | [INFO] [stderr] 236 | fn read_seq_elt(&mut self, idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `idx` [INFO] [stderr] --> src/lib.rs:246:40 [INFO] [stderr] | [INFO] [stderr] 246 | fn read_map_elt_key(&mut self, idx: usize, f: F) -> DecodeResult where F:FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `idx` [INFO] [stderr] --> src/lib.rs:251:40 [INFO] [stderr] | [INFO] [stderr] 251 | fn read_map_elt_val(&mut self, idx: usize, f: F) -> DecodeResult where F:FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_idx` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_field` [INFO] [stderr] --> src/lib.rs:67:3 [INFO] [stderr] | [INFO] [stderr] 67 | fn get_field(&self, field: &str) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:165:5 [INFO] [stderr] | [INFO] [stderr] 165 | f(self); [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/lib.rs:171:5 [INFO] [stderr] | [INFO] [stderr] 171 | f(self, 0); [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/lib.rs:177:5 [INFO] [stderr] | [INFO] [stderr] 177 | f(self); [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/lib.rs:211:5 [INFO] [stderr] | [INFO] [stderr] 211 | f(self); [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/lib.rs:216:5 [INFO] [stderr] | [INFO] [stderr] 216 | f(self); [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/lib.rs:221:5 [INFO] [stderr] | [INFO] [stderr] 221 | f(self); [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/lib.rs:226:5 [INFO] [stderr] | [INFO] [stderr] 226 | f(self); [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/lib.rs:232:5 [INFO] [stderr] | [INFO] [stderr] 232 | f(self, 0); [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/lib.rs:237:5 [INFO] [stderr] | [INFO] [stderr] 237 | f(self); [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/lib.rs:242:5 [INFO] [stderr] | [INFO] [stderr] 242 | f(self, 0); [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/lib.rs:247:5 [INFO] [stderr] | [INFO] [stderr] 247 | f(self); [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/lib.rs:252:5 [INFO] [stderr] | [INFO] [stderr] 252 | f(self); [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 0.66s [INFO] running `"docker" "inspect" "f75e495cf87863840def2bb38fbeb05fcc9068024a4072163ec46fabf9036b36"` [INFO] running `"docker" "rm" "-f" "f75e495cf87863840def2bb38fbeb05fcc9068024a4072163ec46fabf9036b36"` [INFO] [stdout] f75e495cf87863840def2bb38fbeb05fcc9068024a4072163ec46fabf9036b36 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/typedopts/1.1.2:/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] 5ad7b51f031ea42fad14455ddc1d9a4a164395892b01c827a107ea798e814feb [INFO] running `"docker" "start" "-a" "5ad7b51f031ea42fad14455ddc1d9a4a164395892b01c827a107ea798e814feb"` [INFO] [stderr] Compiling typedopts v1.1.2 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Error` [INFO] [stderr] --> tests/test.rs:7:17 [INFO] [stderr] | [INFO] [stderr] 7 | use typedopts::{Error,ErrorType,DecodeResult}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `DecodeResult` [INFO] [stderr] --> examples/getopt.rs:7:17 [INFO] [stderr] | [INFO] [stderr] 7 | use typedopts::{DecodeResult,ErrorType}; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> examples/getopt.rs:48:3 [INFO] [stderr] | [INFO] [stderr] 48 | / help_opts.parse(args).map(|m| { [INFO] [stderr] 49 | | if m.opt_present("h") { [INFO] [stderr] 50 | | print_usage(&program, generate_options()); [INFO] [stderr] 51 | | return; [INFO] [stderr] 52 | | } [INFO] [stderr] 53 | | }); [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 variable: `field` [INFO] [stderr] --> src/lib.rs:67:34 [INFO] [stderr] | [INFO] [stderr] 67 | fn get_field(&self, field: &str) -> Option { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_field` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_idx` [INFO] [stderr] --> src/lib.rs:163:45 [INFO] [stderr] | [INFO] [stderr] 163 | fn read_enum_variant_arg(&mut self, a_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_a_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `names` [INFO] [stderr] --> src/lib.rs:169:48 [INFO] [stderr] | [INFO] [stderr] 169 | fn read_enum_struct_variant(&mut self, names: &[&str], f: F) -> DecodeResult where F: FnOnce(&mut Decoder, usize) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_names` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f_name` [INFO] [stderr] --> src/lib.rs:175:54 [INFO] [stderr] | [INFO] [stderr] 175 | fn read_enum_struct_variant_field(&mut self, f_name: &str, f_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_f_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f_idx` [INFO] [stderr] --> src/lib.rs:175:68 [INFO] [stderr] | [INFO] [stderr] 175 | fn read_enum_struct_variant_field(&mut self, f_name: &str, f_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_f_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/lib.rs:181:49 [INFO] [stderr] | [INFO] [stderr] 181 | fn read_struct(&mut self, s_name: &str, len: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f_idx` [INFO] [stderr] --> src/lib.rs:187:55 [INFO] [stderr] | [INFO] [stderr] 187 | fn read_struct_field(&mut self, f_name: &str, f_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_f_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `tuple_len` [INFO] [stderr] --> src/lib.rs:210:35 [INFO] [stderr] | [INFO] [stderr] 210 | fn read_tuple(&mut self, tuple_len: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_tuple_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_idx` [INFO] [stderr] --> src/lib.rs:215:38 [INFO] [stderr] | [INFO] [stderr] 215 | fn read_tuple_arg(&mut self, a_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_a_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s_name` [INFO] [stderr] --> src/lib.rs:220:41 [INFO] [stderr] | [INFO] [stderr] 220 | fn read_tuple_struct(&mut self, s_name: &str, len:usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_s_name` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `len` [INFO] [stderr] --> src/lib.rs:220:55 [INFO] [stderr] | [INFO] [stderr] 220 | fn read_tuple_struct(&mut self, s_name: &str, len:usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_len` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_idx` [INFO] [stderr] --> src/lib.rs:225:45 [INFO] [stderr] | [INFO] [stderr] 225 | fn read_tuple_struct_arg(&mut self, a_idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_a_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `idx` [INFO] [stderr] --> src/lib.rs:236:36 [INFO] [stderr] | [INFO] [stderr] 236 | fn read_seq_elt(&mut self, idx: usize, f: F) -> DecodeResult where F: FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `idx` [INFO] [stderr] --> src/lib.rs:246:40 [INFO] [stderr] | [INFO] [stderr] 246 | fn read_map_elt_key(&mut self, idx: usize, f: F) -> DecodeResult where F:FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_idx` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `idx` [INFO] [stderr] --> src/lib.rs:251:40 [INFO] [stderr] | [INFO] [stderr] 251 | fn read_map_elt_val(&mut self, idx: usize, f: F) -> DecodeResult where F:FnOnce(&mut Decoder) -> DecodeResult { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_idx` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_field` [INFO] [stderr] --> src/lib.rs:67:3 [INFO] [stderr] | [INFO] [stderr] 67 | fn get_field(&self, field: &str) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:165:5 [INFO] [stderr] | [INFO] [stderr] 165 | f(self); [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/lib.rs:171:5 [INFO] [stderr] | [INFO] [stderr] 171 | f(self, 0); [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/lib.rs:177:5 [INFO] [stderr] | [INFO] [stderr] 177 | f(self); [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/lib.rs:211:5 [INFO] [stderr] | [INFO] [stderr] 211 | f(self); [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/lib.rs:216:5 [INFO] [stderr] | [INFO] [stderr] 216 | f(self); [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/lib.rs:221:5 [INFO] [stderr] | [INFO] [stderr] 221 | f(self); [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/lib.rs:226:5 [INFO] [stderr] | [INFO] [stderr] 226 | f(self); [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/lib.rs:232:5 [INFO] [stderr] | [INFO] [stderr] 232 | f(self, 0); [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/lib.rs:237:5 [INFO] [stderr] | [INFO] [stderr] 237 | f(self); [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/lib.rs:242:5 [INFO] [stderr] | [INFO] [stderr] 242 | f(self, 0); [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/lib.rs:247:5 [INFO] [stderr] | [INFO] [stderr] 247 | f(self); [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/lib.rs:252:5 [INFO] [stderr] | [INFO] [stderr] 252 | f(self); [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 1.92s [INFO] running `"docker" "inspect" "5ad7b51f031ea42fad14455ddc1d9a4a164395892b01c827a107ea798e814feb"` [INFO] running `"docker" "rm" "-f" "5ad7b51f031ea42fad14455ddc1d9a4a164395892b01c827a107ea798e814feb"` [INFO] [stdout] 5ad7b51f031ea42fad14455ddc1d9a4a164395892b01c827a107ea798e814feb [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/typedopts/1.1.2:/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] e8069810d3fd8b78e51aea4765371cbdeed8f5665929c7b04e4ba96705c5cd6b [INFO] running `"docker" "start" "-a" "e8069810d3fd8b78e51aea4765371cbdeed8f5665929c7b04e4ba96705c5cd6b"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/crater/target/debug/deps/typedopts-2c2b2099c5ccf8c5 [INFO] [stderr] Running /opt/crater/target/debug/deps/test-e1892dbf82af08ca [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] [stdout] [INFO] [stdout] running 13 tests [INFO] [stdout] test parse_int ... ok [INFO] [stdout] test parse_float ... ok [INFO] [stdout] test parse_enum ... ok [INFO] [stdout] test parse_char ... ok [INFO] [stdout] test parse_bool ... ok [INFO] [stdout] test parse_not_int ... ok [INFO] [stdout] test parse_string ... ok [INFO] [stdout] test decode_task_ok ... ok [INFO] [stdout] test decode_task_err ... ok [INFO] [stdout] test parse_struct_noopt ... ok [INFO] [stdout] test parse_struct_optenum ... ok [INFO] [stdout] test parse_option ... ok [INFO] [stdout] test parse_none_option ... FAILED [INFO] [stderr] error: test failed, to rerun pass '--test test' [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- parse_none_option stdout ---- [INFO] [stdout] thread 'parse_none_option' panicked at 'the long_name (second argument) should be longer than a single character, or an empty string for none', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.21/src/lib.rs:604:5 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5569422504bb - backtrace::backtrace::libunwind::trace::hfe5db90796807973 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stdout] 1: 0x5569422504bb - backtrace::backtrace::trace_unsynchronized::h34b865a835594335 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x5569422504bb - std::sys_common::backtrace::_print::h527254ae44989167 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stdout] 3: 0x5569422504bb - std::sys_common::backtrace::print::he85dd5ddddf46503 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stdout] 4: 0x5569422504bb - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14 [INFO] [stdout] at src/libstd/panicking.rs:200 [INFO] [stdout] 5: 0x55694225012a - std::panicking::default_hook::h2ca0f9a30a0e206b [INFO] [stdout] at src/libstd/panicking.rs:211 [INFO] [stdout] 6: 0x556942250c30 - std::panicking::rust_panic_with_hook::hffcefc09751839d1 [INFO] [stdout] at src/libstd/panicking.rs:477 [INFO] [stdout] 7: 0x556942240228 - std::panicking::begin_panic::h4c91a7d08f219974 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:411 [INFO] [stdout] 8: 0x556942231ac1 - getopts::validate_names::h81073c4aed862ed9 [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.21/src/lib.rs:604 [INFO] [stdout] 9: 0x556942231805 - getopts::Options::reqopt::h305ce8b6c04301b4 [INFO] [stdout] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.21/src/lib.rs:320 [INFO] [stdout] 10: 0x5569421c98df - test::parse_none_option::haf4ece31d2d87641 [INFO] [stdout] at tests/test.rs:136 [INFO] [stdout] 11: 0x5569421c97ea - test::parse_none_option::{{closure}}::hecb6d79760da5a94 [INFO] [stdout] at tests/test.rs:133 [INFO] [stdout] 12: 0x5569421e1a3e - core::ops::function::FnOnce::call_once::hccdc2d521650f00f [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 13: 0x5569421ef19f - as core::ops::function::FnOnce>::call_once::h4a13ee3f0d7b4201 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 14: 0x5569422531aa - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 15: 0x556942209798 - std::panicking::try::h5a93466ab2078586 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 16: 0x556942209798 - std::panic::catch_unwind::h752cbeae6ac7bdea [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 17: 0x556942209798 - test::run_test::run_test_inner::{{closure}}::h206c9c16936edaca [INFO] [stdout] at src/libtest/lib.rs:1466 [INFO] [stdout] 18: 0x5569421e4615 - std::sys_common::backtrace::__rust_begin_short_backtrace::hc7edbac42990d270 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/sys_common/backtrace.rs:77 [INFO] [stdout] 19: 0x5569421e86d5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he53c58e7adee87af [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:470 [INFO] [stdout] 20: 0x5569421e86d5 - as core::ops::function::FnOnce<()>>::call_once::h1aff7c42b6bb3726 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:315 [INFO] [stdout] 21: 0x5569421e86d5 - std::panicking::try::do_call::h41f8559f88100f6c [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:296 [INFO] [stdout] 22: 0x5569422531aa - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:82 [INFO] [stdout] 23: 0x5569421e8dd2 - std::panicking::try::hb54ba808181fe352 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:275 [INFO] [stdout] 24: 0x5569421e8dd2 - std::panic::catch_unwind::h555ccf4e835e93f4 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panic.rs:394 [INFO] [stdout] 25: 0x5569421e8dd2 - std::thread::Builder::spawn_unchecked::{{closure}}::hd4dae6e19e80fc1a [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/thread/mod.rs:469 [INFO] [stdout] 26: 0x5569421e8dd2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc35d54c07710e1a1 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libcore/ops/function.rs:231 [INFO] [stdout] 27: 0x55694224625f - as core::ops::function::FnOnce>::call_once::h42806b83647d4c79 [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 28: 0x556942252900 - as core::ops::function::FnOnce>::call_once::h83c921c8e826dd1d [INFO] [stdout] at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/liballoc/boxed.rs:746 [INFO] [stdout] 29: 0x556942252900 - std::sys_common::thread::start_thread::h2613204ce513782e [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] 30: 0x556942252900 - std::sys::unix::thread::Thread::new::thread_start::h4570080769500bcd [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 31: 0x7f9f0d66e4a4 - start_thread [INFO] [stdout] 32: 0x7f9f0d199d0f - __clone [INFO] [stdout] 33: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] parse_none_option [INFO] [stdout] [INFO] [stdout] test result: FAILED. 12 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "e8069810d3fd8b78e51aea4765371cbdeed8f5665929c7b04e4ba96705c5cd6b"` [INFO] running `"docker" "rm" "-f" "e8069810d3fd8b78e51aea4765371cbdeed8f5665929c7b04e4ba96705c5cd6b"` [INFO] [stdout] e8069810d3fd8b78e51aea4765371cbdeed8f5665929c7b04e4ba96705c5cd6b