[INFO] updating cached repository lonnng/lua-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lonnng/lua-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lonnng/lua-rs" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/lonnng/lua-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/lonnng/lua-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lonnng/lua-rs" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/lonnng/lua-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/lonnng/lua-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 26e9264506ac60648fefe7ab18d8610d41169280
[INFO] sha for GitHub repo lonnng/lua-rs: 26e9264506ac60648fefe7ab18d8610d41169280
[INFO] validating manifest of lonnng/lua-rs on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lonnng/lua-rs on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lonnng/lua-rs
[INFO] finished frobbing lonnng/lua-rs
[INFO] frobbed toml for lonnng/lua-rs written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/lonnng/lua-rs/Cargo.toml
[INFO] started frobbing lonnng/lua-rs
[INFO] finished frobbing lonnng/lua-rs
[INFO] frobbed toml for lonnng/lua-rs written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/lonnng/lua-rs/Cargo.toml
[INFO] crate lonnng/lua-rs has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lonnng/lua-rs against master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039 for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-7/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/lonnng/lua-rs:/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=forbid" "-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" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aadd334ce7bbed4051334b5226ce87487ee18adfaa9f4e1bb31a5c50ed5ea587
[INFO] running `"docker" "start" "-a" "aadd334ce7bbed4051334b5226ce87487ee18adfaa9f4e1bb31a5c50ed5ea587"`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking bytes v0.4.8
[INFO] [stderr]     Checking lua v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `state::State`
[INFO] [stderr]  --> src/scanner.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use state::State;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/scanner.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/scanner.rs:368:25
[INFO] [stderr]     |
[INFO] [stderr] 368 |                         /// Escape charactors
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read`, `Write`
[INFO] [stderr]    --> src/scanner.rs:643:19
[INFO] [stderr]     |
[INFO] [stderr] 643 |     use std::io::{Read, Write};
[INFO] [stderr]     |                   ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `state::State`
[INFO] [stderr]  --> src/scanner.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use state::State;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/scanner.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/scanner.rs:368:25
[INFO] [stderr]     |
[INFO] [stderr] 368 |                         /// Escape charactors
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `state::State`
[INFO] [stderr]  --> src/scanner.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use state::State;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/scanner.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]    --> src/scanner.rs:368:25
[INFO] [stderr]     |
[INFO] [stderr] 368 |                         /// Escape charactors
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:238:9
[INFO] [stderr]     |
[INFO] [stderr] 238 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:355:9
[INFO] [stderr]     |
[INFO] [stderr] 355 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:238:9
[INFO] [stderr]     |
[INFO] [stderr] 238 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:355:9
[INFO] [stderr]     |
[INFO] [stderr] 355 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:238:9
[INFO] [stderr]     |
[INFO] [stderr] 238 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/scanner.rs:580:23
[INFO] [stderr]     |
[INFO] [stderr] 580 |             let r = s.trim_left_matches("0").to_string();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/scanner.rs:355:9
[INFO] [stderr]     |
[INFO] [stderr] 355 |         unreachable!()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/scanner.rs:580:23
[INFO] [stderr]     |
[INFO] [stderr] 580 |             let r = s.trim_left_matches("0").to_string();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/scanner.rs:580:23
[INFO] [stderr]     |
[INFO] [stderr] 580 |             let r = s.trim_left_matches("0").to_string();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:933:21
[INFO] [stderr]     |
[INFO] [stderr] 933 |                     reg += self.compile_expr(reg, expr, expr_ctx);
[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: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:937:21
[INFO] [stderr]     |
[INFO] [stderr] 937 |                     reg += self.compile_expr(reg, expr, &ExprContext::with_opt(0));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1020:17
[INFO] [stderr]      |
[INFO] [stderr] 1020 |                 reg += self.compile_expr(reg, rhs, &ExprContext::with_opt(0));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1676:21
[INFO] [stderr]      |
[INFO] [stderr] 1676 |                     reg += self.compile_expr(reg, &exprs[0], &ExprContext::with_opt(-2));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scanner.rs:475:17
[INFO] [stderr]     |
[INFO] [stderr] 475 |             let mut cvalue = c as u32;
[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/scanner.rs:517:49
[INFO] [stderr]     |
[INFO] [stderr] 517 |             let (mut fraction, mut latest_char, mut count) = self.read_hexadecimal(0.0);
[INFO] [stderr]     |                                                 ----^^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/scanner.rs:732:13
[INFO] [stderr]     |
[INFO] [stderr] 732 |         let res = scanner.scan();
[INFO] [stderr]     |             ^^^ help: consider using `_res` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:933:21
[INFO] [stderr]     |
[INFO] [stderr] 933 |                     reg += self.compile_expr(reg, expr, expr_ctx);
[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: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:937:21
[INFO] [stderr]     |
[INFO] [stderr] 937 |                     reg += self.compile_expr(reg, expr, &ExprContext::with_opt(0));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1020:17
[INFO] [stderr]      |
[INFO] [stderr] 1020 |                 reg += self.compile_expr(reg, rhs, &ExprContext::with_opt(0));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1676:21
[INFO] [stderr]      |
[INFO] [stderr] 1676 |                     reg += self.compile_expr(reg, &exprs[0], &ExprContext::with_opt(-2));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:933:21
[INFO] [stderr]     |
[INFO] [stderr] 933 |                     reg += self.compile_expr(reg, expr, expr_ctx);
[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: value assigned to `reg` is never read
[INFO] [stderr]    --> src/compiler.rs:937:21
[INFO] [stderr]     |
[INFO] [stderr] 937 |                     reg += self.compile_expr(reg, expr, &ExprContext::with_opt(0));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1020:17
[INFO] [stderr]      |
[INFO] [stderr] 1020 |                 reg += self.compile_expr(reg, rhs, &ExprContext::with_opt(0));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `reg` is never read
[INFO] [stderr]     --> src/compiler.rs:1676:21
[INFO] [stderr]      |
[INFO] [stderr] 1676 |                     reg += self.compile_expr(reg, &exprs[0], &ExprContext::with_opt(-2));
[INFO] [stderr]      |                     ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scanner.rs:475:17
[INFO] [stderr]     |
[INFO] [stderr] 475 |             let mut cvalue = c as u32;
[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/scanner.rs:517:49
[INFO] [stderr]     |
[INFO] [stderr] 517 |             let (mut fraction, mut latest_char, mut count) = self.read_hexadecimal(0.0);
[INFO] [stderr]     |                                                 ----^^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scanner.rs:475:17
[INFO] [stderr]     |
[INFO] [stderr] 475 |             let mut cvalue = c as u32;
[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/scanner.rs:517:49
[INFO] [stderr]     |
[INFO] [stderr] 517 |             let (mut fraction, mut latest_char, mut count) = self.read_hexadecimal(0.0);
[INFO] [stderr]     |                                                 ----^^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.51s
[INFO] running `"docker" "inspect" "aadd334ce7bbed4051334b5226ce87487ee18adfaa9f4e1bb31a5c50ed5ea587"`
[INFO] running `"docker" "rm" "-f" "aadd334ce7bbed4051334b5226ce87487ee18adfaa9f4e1bb31a5c50ed5ea587"`
[INFO] [stdout] aadd334ce7bbed4051334b5226ce87487ee18adfaa9f4e1bb31a5c50ed5ea587