[INFO] cloning repository https://github.com/DrDeano/backwards
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DrDeano/backwards" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrDeano%2Fbackwards", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrDeano%2Fbackwards'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5722a6ad03b92bed20cb396f9bbd17d1c3ae97b
[INFO] checking DrDeano/backwards against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrDeano%2Fbackwards" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DrDeano/backwards on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-0/source/Cargo.toml
[INFO] crate git repo https://github.com/DrDeano/backwards already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 630c2b48ece166bd92a40600ea0eb6a0a84be04f77b85a238bd91c50315c324f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "630c2b48ece166bd92a40600ea0eb6a0a84be04f77b85a238bd91c50315c324f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "630c2b48ece166bd92a40600ea0eb6a0a84be04f77b85a238bd91c50315c324f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "630c2b48ece166bd92a40600ea0eb6a0a84be04f77b85a238bd91c50315c324f", kill_on_drop: false }`
[INFO] [stdout] 630c2b48ece166bd92a40600ea0eb6a0a84be04f77b85a238bd91c50315c324f
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bac0242e7a83ba72daaf414b17b29eca20309542b39e559332db84342e97377c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bac0242e7a83ba72daaf414b17b29eca20309542b39e559332db84342e97377c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]     Checking 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] [stdout] error[E0412]: cannot find type `Vev` in this scope
[INFO] [stdout]    --> src/main.rs:251:31
[INFO] [stdout]     |
[INFO] [stdout] 251 |   fn parse_program(program_lex: Vev<Token>) {
[INFO] [stdout]     |                                 ^^^ help: a struct with a similar name exists: `Vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Vev` in this scope
[INFO] [stdout]    --> src/main.rs:251:31
[INFO] [stdout]     |
[INFO] [stdout] 251 |   fn parse_program(program_lex: Vev<Token>) {
[INFO] [stdout]     |                                 ^^^ help: a struct with a similar name exists: `Vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:215:44
[INFO] [stdout]     |
[INFO] [stdout] 215 | ...                   lexer_error(program_lex.get(program_lex.len()), working_file_string));
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found enum `std::option::Option`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Token`
[INFO] [stdout]                  found enum `std::option::Option<&Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `ignored` on type `&TokenDefinition`
[INFO] [stdout]    --> src/main.rs:222:30
[INFO] [stdout]     |
[INFO] [stdout] 222 |                     if token.ignored {
[INFO] [stdout]     |                              ^^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `regex`, `token_type`, `is_ignored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:243:32
[INFO] [stdout]     |
[INFO] [stdout] 243 |                    lexer_error(program_lex.get(program_lex.len()), working_file_string));
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found enum `std::option::Option`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Token`
[INFO] [stdout]                  found enum `std::option::Option<&Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `()` is not an iterator
[INFO] [stdout]    --> src/main.rs:286:18
[INFO] [stdout]     |
[INFO] [stdout] 286 |     for parse in program_parsed {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^ `()` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::iter::Iterator` is not implemented for `()`
[INFO] [stdout]     = note: required by `std::iter::IntoIterator::into_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0412, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[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] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:215:44
[INFO] [stdout]     |
[INFO] [stdout] 215 | ...                   lexer_error(program_lex.get(program_lex.len()), working_file_string));
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found enum `std::option::Option`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Token`
[INFO] [stdout]                  found enum `std::option::Option<&Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `ignored` on type `&TokenDefinition`
[INFO] [stdout]    --> src/main.rs:222:30
[INFO] [stdout]     |
[INFO] [stdout] 222 |                     if token.ignored {
[INFO] [stdout]     |                              ^^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `regex`, `token_type`, `is_ignored`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:243:32
[INFO] [stdout]     |
[INFO] [stdout] 243 |                    lexer_error(program_lex.get(program_lex.len()), working_file_string));
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected struct `Token`, found enum `std::option::Option`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Token`
[INFO] [stdout]                  found enum `std::option::Option<&Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `()` is not an iterator
[INFO] [stdout]    --> src/main.rs:286:18
[INFO] [stdout]     |
[INFO] [stdout] 286 |     for parse in program_parsed {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^ `()` is not an iterator
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::iter::Iterator` is not implemented for `()`
[INFO] [stdout]     = note: required by `std::iter::IntoIterator::into_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0412, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bac0242e7a83ba72daaf414b17b29eca20309542b39e559332db84342e97377c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bac0242e7a83ba72daaf414b17b29eca20309542b39e559332db84342e97377c", kill_on_drop: false }`
[INFO] [stdout] bac0242e7a83ba72daaf414b17b29eca20309542b39e559332db84342e97377c