[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#ddcf048784667508cd676fef4667f88ae15628a3 for pr-148271
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrDeano%2Fbackwards" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[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-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DrDeano/backwards on toolchain ddcf048784667508cd676fef4667f88ae15628a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DrDeano/backwards already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f5dd5b4b0a1b9be3dcf75e829be8aed85249d3cc3ab0a1a4681ef3fb6388356
[INFO] running `Command { std: "docker" "start" "-a" "0f5dd5b4b0a1b9be3dcf75e829be8aed85249d3cc3ab0a1a4681ef3fb6388356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f5dd5b4b0a1b9be3dcf75e829be8aed85249d3cc3ab0a1a4681ef3fb6388356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5dd5b4b0a1b9be3dcf75e829be8aed85249d3cc3ab0a1a4681ef3fb6388356", kill_on_drop: false }`
[INFO] [stdout] 0f5dd5b4b0a1b9be3dcf75e829be8aed85249d3cc3ab0a1a4681ef3fb6388356
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ddcf048784667508cd676fef4667f88ae15628a3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 470fab82edd5613ef3be8879e571f42acf12a4cb8d056213edfe0928d66c0444
[INFO] running `Command { std: "docker" "start" "-a" "470fab82edd5613ef3be8879e571f42acf12a4cb8d056213edfe0928d66c0444", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.6.9
[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]    --> /rustc/ddcf048784667508cd676fef4667f88ae15628a3/library/alloc/src/vec/mod.rs:434:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: similarly named struct `Vec` defined here
[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]    --> /rustc/ddcf048784667508cd676fef4667f88ae15628a3/library/alloc/src/vec/mod.rs:434:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: similarly named struct `Vec` defined here
[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 `Token`, found `Option<&Token>`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Token`
[INFO] [stdout]                  found enum `Option<&Token>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:96:4
[INFO] [stdout]     |
[INFO] [stdout]  96 | fn lexer_error(previous_token: Token, current_string: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^ ---------------------
[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 `Token`, found `Option<&Token>`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Token`
[INFO] [stdout]                  found enum `Option<&Token>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:96:4
[INFO] [stdout]     |
[INFO] [stdout]  96 | fn lexer_error(previous_token: Token, current_string: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^ ---------------------
[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[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 `Token`, found `Option<&Token>`
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Token`
[INFO] [stdout]                  found enum `Option<&Token>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:96:4
[INFO] [stdout]     |
[INFO] [stdout]  96 | fn lexer_error(previous_token: Token, current_string: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^ ---------------------
[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 `Token`, found `Option<&Token>`
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Token`
[INFO] [stdout]                  found enum `Option<&Token>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:96:4
[INFO] [stdout]     |
[INFO] [stdout]  96 | fn lexer_error(previous_token: Token, current_string: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^ ---------------------
[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 `Iterator` is not implemented for `()`
[INFO] [stdout]     = note: required for `()` to implement `IntoIterator`
[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 `Iterator` is not implemented for `()`
[INFO] [stdout]     = note: required for `()` to implement `IntoIterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `previous_token`
[INFO] [stdout]   --> src/main.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn lexer_error(previous_token: Token, current_string: &str) -> &str {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_previous_token`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `previous_token`
[INFO] [stdout]   --> src/main.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn lexer_error(previous_token: Token, current_string: &str) -> &str {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_previous_token`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[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] [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` (bin "backwards" test) due to 5 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `backwards` (bin "backwards") due to 5 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "470fab82edd5613ef3be8879e571f42acf12a4cb8d056213edfe0928d66c0444", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "470fab82edd5613ef3be8879e571f42acf12a4cb8d056213edfe0928d66c0444", kill_on_drop: false }`
[INFO] [stdout] 470fab82edd5613ef3be8879e571f42acf12a4cb8d056213edfe0928d66c0444
