[INFO] updating cached repository https://github.com/Malmz/pascal-parser-rs
[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] 10481f4d90875a836580176c277d812a279c01b4
[INFO] checking Malmz/pascal-parser-rs against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMalmz%2Fpascal-parser-rs" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Malmz/pascal-parser-rs on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Malmz/pascal-parser-rs
[INFO] finished tweaking git repo https://github.com/Malmz/pascal-parser-rs
[INFO] tweaked toml for git repo https://github.com/Malmz/pascal-parser-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Malmz/pascal-parser-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "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] cbed3dd5114d50d426ae12c33cea00b314654b140ce8ba997710a79ea28a2b4e
[INFO] running `"docker" "start" "-a" "cbed3dd5114d50d426ae12c33cea00b314654b140ce8ba997710a79ea28a2b4e"`
[INFO] [stderr]     Checking parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/main.rs:1:28
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns, advanced_slice_patterns)]
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: merged into `#![feature(slice_patterns)]`
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/main.rs:1:28
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns, advanced_slice_patterns)]
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: merged into `#![feature(slice_patterns)]`
[INFO] [stderr] 
[INFO] [stderr] error: expected expression, found `=>`
[INFO] [stderr]   --> src/parser/lexer2.rs:36:33
[INFO] [stderr]    |
[INFO] [stderr] 36 |             Some(val) if val != => {
[INFO] [stderr]    |                                 ^^ expected expression
[INFO] [stderr] 
[INFO] [stderr] error: expected expression, found `=>`
[INFO] [stderr]   --> src/parser/lexer2.rs:36:33
[INFO] [stderr]    |
[INFO] [stderr] 36 |             Some(val) if val != => {
[INFO] [stderr]    |                                 ^^ expected expression
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/leaf.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn accept(&self, visitor: &mut AstVisitor) {
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn AstVisitor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 |     l: Box<Node>,
[INFO] [stderr]    |            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     r: Box<Node>
[INFO] [stderr]    |            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:15:43
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(op: BinOperator, left: Box<Node>, right: Box<Node>) -> Box<Self> {
[INFO] [stderr]    |                                           ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:15:61
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(op: BinOperator, left: Box<Node>, right: Box<Node>) -> Box<Self> {
[INFO] [stderr]    |                                                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:27:28
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn left(&self) -> &Node {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:31:29
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn right(&self) -> &Node {
[INFO] [stderr]    |                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:37:36
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn accept(&self, visitor: &mut AstVisitor) {
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn AstVisitor`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/unaryop.rs:10:14
[INFO] [stderr]    |
[INFO] [stderr] 10 |     val: Box<Node>,
[INFO] [stderr]    |              ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/unaryop.rs:14:44
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(op: UnaryOperator, val: Box<Node>) -> Box<Self> {
[INFO] [stderr]    |                                            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/unaryop.rs:25:27
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn val(&self) -> &Node {
[INFO] [stderr]    |                           ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/unaryop.rs:31:36
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn accept(&self, visitor: &mut AstVisitor) {
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn AstVisitor`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/mod.rs:16:36
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn accept(&self, visitor: &mut AstVisitor);
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn AstVisitor`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:14:58
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn evaluate(text: String) -> std::result::Result<Box<Node>, ParseError> {
[INFO] [stderr]    |                                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:22:39
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn expr(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:36:39
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn term(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:50:41
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn parens(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:57:41
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn factor(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:61:42
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn integer(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:68:40
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn unary(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                        ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/parser/lexer2.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |       let mut result: i32 = match chars.first() {
[INFO] [stderr]    |  ___________________________-
[INFO] [stderr] 35 | |         Some(val) => match get_digit(*val) {
[INFO] [stderr] 36 | |             Some(val) if val != => {
[INFO] [stderr] 37 | |                 chars = pop(chars);
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |         None => return None,
[INFO] [stderr] 43 | |     };
[INFO] [stderr]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 44 | /     loop {
[INFO] [stderr] 45 | |         match chars.first() {
[INFO] [stderr] 46 | |             Some(val) => match get_digit(*val) {
[INFO] [stderr] 47 | |                 Some(val) => {
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |         }
[INFO] [stderr] 55 | |     }
[INFO] [stderr]    | |_____^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/leaf.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn accept(&self, visitor: &mut AstVisitor) {
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn AstVisitor`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 |     l: Box<Node>,
[INFO] [stderr]    |            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     r: Box<Node>
[INFO] [stderr]    |            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:15:43
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(op: BinOperator, left: Box<Node>, right: Box<Node>) -> Box<Self> {
[INFO] [stderr]    |                                           ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:15:61
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new(op: BinOperator, left: Box<Node>, right: Box<Node>) -> Box<Self> {
[INFO] [stderr]    |                                                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:27:28
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn left(&self) -> &Node {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:31:29
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn right(&self) -> &Node {
[INFO] [stderr]    |                             ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/binop.rs:37:36
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn accept(&self, visitor: &mut AstVisitor) {
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn AstVisitor`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/unaryop.rs:10:14
[INFO] [stderr]    |
[INFO] [stderr] 10 |     val: Box<Node>,
[INFO] [stderr]    |              ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/unaryop.rs:14:44
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new(op: UnaryOperator, val: Box<Node>) -> Box<Self> {
[INFO] [stderr]    |                                            ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/unaryop.rs:25:27
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn val(&self) -> &Node {
[INFO] [stderr]    |                           ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/unaryop.rs:31:36
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn accept(&self, visitor: &mut AstVisitor) {
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn AstVisitor`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/ast/mod.rs:16:36
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn accept(&self, visitor: &mut AstVisitor);
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn AstVisitor`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:14:58
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn evaluate(text: String) -> std::result::Result<Box<Node>, ParseError> {
[INFO] [stderr]    |                                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:22:39
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn expr(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:36:39
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn term(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                       ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:50:41
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn parens(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:57:41
[INFO] [stderr]    |
[INFO] [stderr] 57 | fn factor(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:61:42
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn integer(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser/parser.rs:68:40
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn unary(tokens: Tokens) -> Result<Box<Node>, Tokens> {
[INFO] [stderr]    |                                        ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0557`.
[INFO] [stderr] error: could not compile `parser`.
[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] warning: unreachable statement
[INFO] [stderr]   --> src/parser/lexer2.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |       let mut result: i32 = match chars.first() {
[INFO] [stderr]    |  ___________________________-
[INFO] [stderr] 35 | |         Some(val) => match get_digit(*val) {
[INFO] [stderr] 36 | |             Some(val) if val != => {
[INFO] [stderr] 37 | |                 chars = pop(chars);
[INFO] [stderr] ...  |
[INFO] [stderr] 42 | |         None => return None,
[INFO] [stderr] 43 | |     };
[INFO] [stderr]    | |_____- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 44 | /     loop {
[INFO] [stderr] 45 | |         match chars.first() {
[INFO] [stderr] 46 | |             Some(val) => match get_digit(*val) {
[INFO] [stderr] 47 | |                 Some(val) => {
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |         }
[INFO] [stderr] 55 | |     }
[INFO] [stderr]    | |_____^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0557`.
[INFO] [stderr] error: could not compile `parser`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cbed3dd5114d50d426ae12c33cea00b314654b140ce8ba997710a79ea28a2b4e"`
[INFO] running `"docker" "rm" "-f" "cbed3dd5114d50d426ae12c33cea00b314654b140ce8ba997710a79ea28a2b4e"`
[INFO] [stdout] cbed3dd5114d50d426ae12c33cea00b314654b140ce8ba997710a79ea28a2b4e
