[INFO] cloning repository https://github.com/vincentisambart/parser
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vincentisambart/parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvincentisambart%2Fparser"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvincentisambart%2Fparser'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 67794892048e4a8f1a63f30706172827dfa35e06
[INFO] testing vincentisambart/parser against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvincentisambart%2Fparser" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vincentisambart/parser on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vincentisambart/parser
[INFO] finished tweaking git repo https://github.com/vincentisambart/parser
[INFO] tweaked toml for git repo https://github.com/vincentisambart/parser written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/vincentisambart/parser already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5dbcfe48def4842f6683b09b18a5c36ea5e102a7dceb04ac20d4243c1886a832
[INFO] running `"docker" "start" "-a" "5dbcfe48def4842f6683b09b18a5c36ea5e102a7dceb04ac20d4243c1886a832"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:323:47
[INFO] [stderr]     |
[INFO] [stderr] 323 |                 if let Some(p) = self.scanner.next_if(any_of!('p', 'P')) {
[INFO] [stderr]     |                                               ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:326:54
[INFO] [stderr]     |
[INFO] [stderr] 326 |                     if let Some(sign) = self.scanner.next_if(any_of!('-', '+')) {
[INFO] [stderr]     |                                                      ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:346:54
[INFO] [stderr]     |
[INFO] [stderr] 346 |             } else if let Some(digit) = self.scanner.next_if(CharPattern::is_ascii_octdigit) {
[INFO] [stderr]     |                                                      ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:367:43
[INFO] [stderr]     |
[INFO] [stderr] 367 |             if let Some(e) = self.scanner.next_if(any_of!('e', 'E')) {
[INFO] [stderr]     |                                           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:369:50
[INFO] [stderr]     |
[INFO] [stderr] 369 |                 if let Some(sign) = self.scanner.next_if(any_of!('-', '+')) {
[INFO] [stderr]     |                                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:375:39
[INFO] [stderr]     |
[INFO] [stderr] 375 |         if let Some(e) = self.scanner.next_if(any_of!('e', 'E')) {
[INFO] [stderr]     |                                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:378:46
[INFO] [stderr]     |
[INFO] [stderr] 378 |             if let Some(sign) = self.scanner.next_if(any_of!('-', '+')) {
[INFO] [stderr]     |                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:486:14
[INFO] [stderr]     |
[INFO] [stderr] 486 |             .next_if(any_of!('\''))
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:529:14
[INFO] [stderr]     |
[INFO] [stderr] 529 |             .next_if(any_of!('"'))
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:818:46
[INFO] [stderr]     |
[INFO] [stderr] 818 |         } else if let Some(c) = self.scanner.next_if(any_of!('a'..='z', 'A'..='Z', '_')) {
[INFO] [stderr]     |                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:450:50
[INFO] [stderr]     |
[INFO] [stderr] 450 |                 while let Some(c) = self.scanner.next_if(char::is_ascii_hexdigit) {
[INFO] [stderr]     |                                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:460:50
[INFO] [stderr]     |
[INFO] [stderr] 460 |                 while let Some(c) = self.scanner.next_if(CharPattern::is_ascii_octdigit) {
[INFO] [stderr]     |                                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/peeking.rs:50:14
[INFO] [stderr]    |
[INFO] [stderr] 50 |         self.next_if(predicate).is_some()
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `"docker" "inspect" "5dbcfe48def4842f6683b09b18a5c36ea5e102a7dceb04ac20d4243c1886a832"`
[INFO] running `"docker" "rm" "-f" "5dbcfe48def4842f6683b09b18a5c36ea5e102a7dceb04ac20d4243c1886a832"`
[INFO] [stdout] 5dbcfe48def4842f6683b09b18a5c36ea5e102a7dceb04ac20d4243c1886a832
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7d2615d53759f015d141ca93988a603eda259112b4c318c09ece63c38a449deb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7d2615d53759f015d141ca93988a603eda259112b4c318c09ece63c38a449deb"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:323:47
[INFO] [stderr]     |
[INFO] [stderr] 323 |                 if let Some(p) = self.scanner.next_if(any_of!('p', 'P')) {
[INFO] [stderr]     |                                               ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:326:54
[INFO] [stderr]     |
[INFO] [stderr] 326 |                     if let Some(sign) = self.scanner.next_if(any_of!('-', '+')) {
[INFO] [stderr]     |                                                      ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:346:54
[INFO] [stderr]     |
[INFO] [stderr] 346 |             } else if let Some(digit) = self.scanner.next_if(CharPattern::is_ascii_octdigit) {
[INFO] [stderr]     |                                                      ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:367:43
[INFO] [stderr]     |
[INFO] [stderr] 367 |             if let Some(e) = self.scanner.next_if(any_of!('e', 'E')) {
[INFO] [stderr]     |                                           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:369:50
[INFO] [stderr]     |
[INFO] [stderr] 369 |                 if let Some(sign) = self.scanner.next_if(any_of!('-', '+')) {
[INFO] [stderr]     |                                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:375:39
[INFO] [stderr]     |
[INFO] [stderr] 375 |         if let Some(e) = self.scanner.next_if(any_of!('e', 'E')) {
[INFO] [stderr]     |                                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:378:46
[INFO] [stderr]     |
[INFO] [stderr] 378 |             if let Some(sign) = self.scanner.next_if(any_of!('-', '+')) {
[INFO] [stderr]     |                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:486:14
[INFO] [stderr]     |
[INFO] [stderr] 486 |             .next_if(any_of!('\''))
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:529:14
[INFO] [stderr]     |
[INFO] [stderr] 529 |             .next_if(any_of!('"'))
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:818:46
[INFO] [stderr]     |
[INFO] [stderr] 818 |         } else if let Some(c) = self.scanner.next_if(any_of!('a'..='z', 'A'..='Z', '_')) {
[INFO] [stderr]     |                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:450:50
[INFO] [stderr]     |
[INFO] [stderr] 450 |                 while let Some(c) = self.scanner.next_if(char::is_ascii_hexdigit) {
[INFO] [stderr]     |                                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:460:50
[INFO] [stderr]     |
[INFO] [stderr] 460 |                 while let Some(c) = self.scanner.next_if(CharPattern::is_ascii_octdigit) {
[INFO] [stderr]     |                                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/peeking.rs:50:14
[INFO] [stderr]    |
[INFO] [stderr] 50 |         self.next_if(predicate).is_some()
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `"docker" "inspect" "7d2615d53759f015d141ca93988a603eda259112b4c318c09ece63c38a449deb"`
[INFO] running `"docker" "rm" "-f" "7d2615d53759f015d141ca93988a603eda259112b4c318c09ece63c38a449deb"`
[INFO] [stdout] 7d2615d53759f015d141ca93988a603eda259112b4c318c09ece63c38a449deb
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4a3877de15ca9ea76ffb1e717f400b2cf388029f09dc4797b2b05c07e68ec971
[INFO] running `"docker" "start" "-a" "4a3877de15ca9ea76ffb1e717f400b2cf388029f09dc4797b2b05c07e68ec971"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:323:47
[INFO] [stderr]     |
[INFO] [stderr] 323 |                 if let Some(p) = self.scanner.next_if(any_of!('p', 'P')) {
[INFO] [stderr]     |                                               ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:326:54
[INFO] [stderr]     |
[INFO] [stderr] 326 |                     if let Some(sign) = self.scanner.next_if(any_of!('-', '+')) {
[INFO] [stderr]     |                                                      ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:346:54
[INFO] [stderr]     |
[INFO] [stderr] 346 |             } else if let Some(digit) = self.scanner.next_if(CharPattern::is_ascii_octdigit) {
[INFO] [stderr]     |                                                      ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:367:43
[INFO] [stderr]     |
[INFO] [stderr] 367 |             if let Some(e) = self.scanner.next_if(any_of!('e', 'E')) {
[INFO] [stderr]     |                                           ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:369:50
[INFO] [stderr]     |
[INFO] [stderr] 369 |                 if let Some(sign) = self.scanner.next_if(any_of!('-', '+')) {
[INFO] [stderr]     |                                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:375:39
[INFO] [stderr]     |
[INFO] [stderr] 375 |         if let Some(e) = self.scanner.next_if(any_of!('e', 'E')) {
[INFO] [stderr]     |                                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:378:46
[INFO] [stderr]     |
[INFO] [stderr] 378 |             if let Some(sign) = self.scanner.next_if(any_of!('-', '+')) {
[INFO] [stderr]     |                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:486:14
[INFO] [stderr]     |
[INFO] [stderr] 486 |             .next_if(any_of!('\''))
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:529:14
[INFO] [stderr]     |
[INFO] [stderr] 529 |             .next_if(any_of!('"'))
[INFO] [stderr]     |              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:818:46
[INFO] [stderr]     |
[INFO] [stderr] 818 |         } else if let Some(c) = self.scanner.next_if(any_of!('a'..='z', 'A'..='Z', '_')) {
[INFO] [stderr]     |                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:450:50
[INFO] [stderr]     |
[INFO] [stderr] 450 |                 while let Some(c) = self.scanner.next_if(char::is_ascii_hexdigit) {
[INFO] [stderr]     |                                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lex.rs:460:50
[INFO] [stderr]     |
[INFO] [stderr] 460 |                 while let Some(c) = self.scanner.next_if(CharPattern::is_ascii_octdigit) {
[INFO] [stderr]     |                                                  ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/peeking.rs:50:14
[INFO] [stderr]    |
[INFO] [stderr] 50 |         self.next_if(predicate).is_some()
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `peeking::Peeking::next_if(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/parser-52dd5e72df4fd964
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test lex::tests::test_number_literal ... ok
[INFO] [stdout] test lex::tests::test_punctuators ... ok
[INFO] [stdout] test parser::tests::test_simple_declaration ... ok
[INFO] [stdout] test parser::tests::test_tag_definition ... ok
[INFO] [stdout] test lex::tests::test_string_literal ... ok
[INFO] [stdout] test parser::tests::test_function_definition ... ok
[INFO] [stdout] test parser::tests::test_function_declaration ... ok
[INFO] [stdout] test parser::tests::test_function_pointer_declaration ... ok
[INFO] [stdout] test parser::tests::test_simple_type_definition ... ok
[INFO] [stdout] test parser::tests::test_array_declaration ... ok
[INFO] [stdout] test parser::tests::test_variable_initialization ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4a3877de15ca9ea76ffb1e717f400b2cf388029f09dc4797b2b05c07e68ec971"`
[INFO] running `"docker" "rm" "-f" "4a3877de15ca9ea76ffb1e717f400b2cf388029f09dc4797b2b05c07e68ec971"`
[INFO] [stdout] 4a3877de15ca9ea76ffb1e717f400b2cf388029f09dc4797b2b05c07e68ec971