[INFO] updating cached repository https://github.com/DrDeano/backwards
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a5722a6ad03b92bed20cb396f9bbd17d1c3ae97b
[INFO] checking DrDeano/backwards against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrDeano%2Fbackwards" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DrDeano/backwards on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/DrDeano/backwards
[INFO] finished tweaking git repo https://github.com/DrDeano/backwards
[INFO] tweaked toml for git repo https://github.com/DrDeano/backwards written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/DrDeano/backwards already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4f20bda06b204a69682985f28b6cb7e845b0a11d41d7320955bfeb7b47e718e9
[INFO] running `"docker" "start" "-a" "4f20bda06b204a69682985f28b6cb7e845b0a11d41d7320955bfeb7b47e718e9"`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking backwards v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0412]: cannot find type `Vev` in this scope
[INFO] [stderr]    --> src/main.rs:251:31
[INFO] [stderr]     |
[INFO] [stderr] 251 |   fn parse_program(program_lex: Vev<Token>) {
[INFO] [stderr]     |                                 ^^^ help: a struct with a similar name exists: `Vec`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Vev` in this scope
[INFO] [stderr]    --> src/main.rs:251:31
[INFO] [stderr]     |
[INFO] [stderr] 251 |   fn parse_program(program_lex: Vev<Token>) {
[INFO] [stderr]     |                                 ^^^ help: a struct with a similar name exists: `Vec`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:215:44
[INFO] [stderr]     |
[INFO] [stderr] 215 | ...                   lexer_error(program_lex.get(program_lex.len()), working_file_string));
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found enum `std::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected struct `Token`
[INFO] [stderr]                  found enum `std::option::Option<&Token>`
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `ignored` on type `&TokenDefinition`
[INFO] [stderr]    --> src/main.rs:222:30
[INFO] [stderr]     |
[INFO] [stderr] 222 |                     if token.ignored {
[INFO] [stderr]     |                              ^^^^^^^ unknown field
[INFO] [stderr]     |
[INFO] [stderr]     = note: available fields are: `regex`, `token_type`, `is_ignored`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:243:32
[INFO] [stderr]     |
[INFO] [stderr] 243 |                    lexer_error(program_lex.get(program_lex.len()), working_file_string));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found enum `std::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected struct `Token`
[INFO] [stderr]                  found enum `std::option::Option<&Token>`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `()` is not an iterator
[INFO] [stderr]    --> src/main.rs:286:18
[INFO] [stderr]     |
[INFO] [stderr] 286 |     for parse in program_parsed {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ `()` is not an iterator
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::iter::Iterator` is not implemented for `()`
[INFO] [stderr]     = note: required by `std::iter::IntoIterator::into_iter`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0308, E0412, E0609.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `backwards`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:215:44
[INFO] [stderr]     |
[INFO] [stderr] 215 | ...                   lexer_error(program_lex.get(program_lex.len()), working_file_string));
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found enum `std::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected struct `Token`
[INFO] [stderr]                  found enum `std::option::Option<&Token>`
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `ignored` on type `&TokenDefinition`
[INFO] [stderr]    --> src/main.rs:222:30
[INFO] [stderr]     |
[INFO] [stderr] 222 |                     if token.ignored {
[INFO] [stderr]     |                              ^^^^^^^ unknown field
[INFO] [stderr]     |
[INFO] [stderr]     = note: available fields are: `regex`, `token_type`, `is_ignored`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/main.rs:243:32
[INFO] [stderr]     |
[INFO] [stderr] 243 |                    lexer_error(program_lex.get(program_lex.len()), working_file_string));
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found enum `std::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected struct `Token`
[INFO] [stderr]                  found enum `std::option::Option<&Token>`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `()` is not an iterator
[INFO] [stderr]    --> src/main.rs:286:18
[INFO] [stderr]     |
[INFO] [stderr] 286 |     for parse in program_parsed {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ `()` is not an iterator
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::iter::Iterator` is not implemented for `()`
[INFO] [stderr]     = note: required by `std::iter::IntoIterator::into_iter`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0308, E0412, E0609.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `backwards`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4f20bda06b204a69682985f28b6cb7e845b0a11d41d7320955bfeb7b47e718e9"`
[INFO] running `"docker" "rm" "-f" "4f20bda06b204a69682985f28b6cb7e845b0a11d41d7320955bfeb7b47e718e9"`
[INFO] [stdout] 4f20bda06b204a69682985f28b6cb7e845b0a11d41d7320955bfeb7b47e718e9