[INFO] cloning repository https://github.com/mk2/muun
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mk2/muun" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmk2%2Fmuun", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmk2%2Fmuun'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 114272a0f85763fecd44960e25eb66a4b8877579
[INFO] checking mk2/muun against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmk2%2Fmuun" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mk2/muun on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mk2/muun
[INFO] finished tweaking git repo https://github.com/mk2/muun
[INFO] tweaked toml for git repo https://github.com/mk2/muun written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mk2/muun already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 011fd6f6de7dd2747b67b56ab9bb0f01459c854f29b2bf20e99794d90a7945bd
[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" "011fd6f6de7dd2747b67b56ab9bb0f01459c854f29b2bf20e99794d90a7945bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "011fd6f6de7dd2747b67b56ab9bb0f01459c854f29b2bf20e99794d90a7945bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "011fd6f6de7dd2747b67b56ab9bb0f01459c854f29b2bf20e99794d90a7945bd", kill_on_drop: false }`
[INFO] [stdout] 011fd6f6de7dd2747b67b56ab9bb0f01459c854f29b2bf20e99794d90a7945bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56a0eedd95761b6934ba55d6d73236b77adfae9e3ef8e137d39170064a5b2e6b
[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" "56a0eedd95761b6934ba55d6d73236b77adfae9e3ef8e137d39170064a5b2e6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking muun v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:312:9
[INFO] [stdout]     |
[INFO] [stdout] 312 |         try!(self.parse_block());
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:343:9
[INFO] [stdout]     |
[INFO] [stdout] 343 |         try!(self.parse_sub_expr(&mut expr, 0));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:355:13
[INFO] [stdout]     |
[INFO] [stdout] 355 |             try!(self.parse_sub_expr(&mut first_expr, UNAOP_PRIORITY));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:358:40
[INFO] [stdout]     |
[INFO] [stdout] 358 |             let mut first_expr = match try!(self.parse_simple_expr()) {
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:372:17
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 try!(self.parse_sub_expr(&mut right_binop_expr, right_priority));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:379:17
[INFO] [stdout]     |
[INFO] [stdout] 379 |                 try!(self.parse_sub_expr(&mut right_binop_expr, right_priority));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:392:13
[INFO] [stdout]     |
[INFO] [stdout] 392 |             try!(self.parse_expr());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:396:13
[INFO] [stdout]     |
[INFO] [stdout] 396 |             try!(self.parse_name());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:443:13
[INFO] [stdout]     |
[INFO] [stdout] 443 |             try!(self.parse_suffixed_expr())
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::expr::Expr`
[INFO] [stdout]   --> src/parse/ast/stmt.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use super::expr::Expr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rc`, `Weak`
[INFO] [stdout]   --> src/parse/parser.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | use std::rc::{Rc, Weak};
[INFO] [stdout]    |               ^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/parse/parser.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ast::tree::Node`
[INFO] [stdout]   --> src/parse/parser.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use super::ast::tree::Node;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ast::stmt::Stmt`
[INFO] [stdout]   --> src/parse/parser.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use super::ast::stmt::Stmt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/parse/parser.rs:93:1
[INFO] [stdout]    |
[INFO] [stdout] 93 | / macro_rules! try_parse {
[INFO] [stdout] 94 | |     ($e:expr) => {
[INFO] [stdout] 95 | |         {
[INFO] [stdout] 96 | |             let parse_result = try!($e);
[INFO] [stdout] 97 | |         }
[INFO] [stdout] 98 | |     }
[INFO] [stdout] 99 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |                       $s;
[INFO] [stdout]     |                         ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 274 | /             partial_consume_match!(self, {
[INFO] [stdout] 275 | |                 Token{kind:Kind::Fun,value:_,place:_} => self.parse_fun_stmt();
[INFO] [stdout] 276 | |                 println!("no_match")
[INFO] [stdout] 277 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:193:20
[INFO] [stdout]     |
[INFO] [stdout] 193 |                   $fs;
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 274 | /             partial_consume_match!(self, {
[INFO] [stdout] 275 | |                 Token{kind:Kind::Fun,value:_,place:_} => self.parse_fun_stmt();
[INFO] [stdout] 276 | |                 println!("no_match")
[INFO] [stdout] 277 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |                       $s;
[INFO] [stdout]     |                         ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 295 | /             partial_consume_match!(self, {
[INFO] [stdout] 296 | |                 Token{kind:Kind::Ident,value:Some(_),place:_} => println!("token: {:?}", self.token),
[INFO] [stdout] 297 | |                 Token{kind:Kind::Sdot,value:_,place:_} => {
[INFO] [stdout] 298 | |                     println!("sdot");
[INFO] [stdout] ...   |
[INFO] [stdout] 302 | |                 break
[INFO] [stdout] 303 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:193:20
[INFO] [stdout]     |
[INFO] [stdout] 193 |                   $fs;
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 295 | /             partial_consume_match!(self, {
[INFO] [stdout] 296 | |                 Token{kind:Kind::Ident,value:Some(_),place:_} => println!("token: {:?}", self.token),
[INFO] [stdout] 297 | |                 Token{kind:Kind::Sdot,value:_,place:_} => {
[INFO] [stdout] 298 | |                     println!("sdot");
[INFO] [stdout] ...   |
[INFO] [stdout] 302 | |                 break
[INFO] [stdout] 303 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |                       $s;
[INFO] [stdout]     |                         ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 408 | /         partial_consume_match!(self, {
[INFO] [stdout] 409 | |
[INFO] [stdout] 410 | |             Token{kind:Kind::Nlit,value:Some(_),place:_} => {
[INFO] [stdout] 411 | |                 if let Some(v) = self.token.value.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 443 | |             try!(self.parse_suffixed_expr())
[INFO] [stdout] 444 | |         });
[INFO] [stdout]     | |___________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:193:20
[INFO] [stdout]     |
[INFO] [stdout] 193 |                   $fs;
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 408 | /         partial_consume_match!(self, {
[INFO] [stdout] 409 | |
[INFO] [stdout] 410 | |             Token{kind:Kind::Nlit,value:Some(_),place:_} => {
[INFO] [stdout] 411 | |                 if let Some(v) = self.token.value.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 443 | |             try!(self.parse_suffixed_expr())
[INFO] [stdout] 444 | |         });
[INFO] [stdout]     | |___________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/parse/parser.rs:480:13
[INFO] [stdout]     |
[INFO] [stdout] 480 |             /// right associative, 1 ^ ( 10 ^ 9 )
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 481 |             Kind::Pow => (10, 9),
[INFO] [stdout]     |             -------------------- rustdoc does not generate documentation for match arms
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/parse/parser.rs:483:13
[INFO] [stdout]     |
[INFO] [stdout] 483 |             /// right associative, 1 ^ ( 10 ^ 9 )
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 484 |             Kind::Ddot => (5, 4),
[INFO] [stdout]     |             -------------------- rustdoc does not generate documentation for match arms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:312:9
[INFO] [stdout]     |
[INFO] [stdout] 312 |         try!(self.parse_block());
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:343:9
[INFO] [stdout]     |
[INFO] [stdout] 343 |         try!(self.parse_sub_expr(&mut expr, 0));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:355:13
[INFO] [stdout]     |
[INFO] [stdout] 355 |             try!(self.parse_sub_expr(&mut first_expr, UNAOP_PRIORITY));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:358:40
[INFO] [stdout]     |
[INFO] [stdout] 358 |             let mut first_expr = match try!(self.parse_simple_expr()) {
[INFO] [stdout]     |                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:372:17
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 try!(self.parse_sub_expr(&mut right_binop_expr, right_priority));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:379:17
[INFO] [stdout]     |
[INFO] [stdout] 379 |                 try!(self.parse_sub_expr(&mut right_binop_expr, right_priority));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:392:13
[INFO] [stdout]     |
[INFO] [stdout] 392 |             try!(self.parse_expr());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:396:13
[INFO] [stdout]     |
[INFO] [stdout] 396 |             try!(self.parse_name());
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse/parser.rs:443:13
[INFO] [stdout]     |
[INFO] [stdout] 443 |             try!(self.parse_suffixed_expr())
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::expr::Expr`
[INFO] [stdout]   --> src/parse/ast/stmt.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use super::expr::Expr;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rc`, `Weak`
[INFO] [stdout]   --> src/parse/parser.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | use std::rc::{Rc, Weak};
[INFO] [stdout]    |               ^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> src/parse/parser.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ast::tree::Node`
[INFO] [stdout]   --> src/parse/parser.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use super::ast::tree::Node;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::ast::stmt::Stmt`
[INFO] [stdout]   --> src/parse/parser.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | use super::ast::stmt::Stmt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/parse/parser.rs:93:1
[INFO] [stdout]    |
[INFO] [stdout] 93 | / macro_rules! try_parse {
[INFO] [stdout] 94 | |     ($e:expr) => {
[INFO] [stdout] 95 | |         {
[INFO] [stdout] 96 | |             let parse_result = try!($e);
[INFO] [stdout] 97 | |         }
[INFO] [stdout] 98 | |     }
[INFO] [stdout] 99 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |                       $s;
[INFO] [stdout]     |                         ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 274 | /             partial_consume_match!(self, {
[INFO] [stdout] 275 | |                 Token{kind:Kind::Fun,value:_,place:_} => self.parse_fun_stmt();
[INFO] [stdout] 276 | |                 println!("no_match")
[INFO] [stdout] 277 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:193:20
[INFO] [stdout]     |
[INFO] [stdout] 193 |                   $fs;
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 274 | /             partial_consume_match!(self, {
[INFO] [stdout] 275 | |                 Token{kind:Kind::Fun,value:_,place:_} => self.parse_fun_stmt();
[INFO] [stdout] 276 | |                 println!("no_match")
[INFO] [stdout] 277 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |                       $s;
[INFO] [stdout]     |                         ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 295 | /             partial_consume_match!(self, {
[INFO] [stdout] 296 | |                 Token{kind:Kind::Ident,value:Some(_),place:_} => println!("token: {:?}", self.token),
[INFO] [stdout] 297 | |                 Token{kind:Kind::Sdot,value:_,place:_} => {
[INFO] [stdout] 298 | |                     println!("sdot");
[INFO] [stdout] ...   |
[INFO] [stdout] 302 | |                 break
[INFO] [stdout] 303 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:193:20
[INFO] [stdout]     |
[INFO] [stdout] 193 |                   $fs;
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 295 | /             partial_consume_match!(self, {
[INFO] [stdout] 296 | |                 Token{kind:Kind::Ident,value:Some(_),place:_} => println!("token: {:?}", self.token),
[INFO] [stdout] 297 | |                 Token{kind:Kind::Sdot,value:_,place:_} => {
[INFO] [stdout] 298 | |                     println!("sdot");
[INFO] [stdout] ...   |
[INFO] [stdout] 302 | |                 break
[INFO] [stdout] 303 | |             })
[INFO] [stdout]     | |______________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:188:23
[INFO] [stdout]     |
[INFO] [stdout] 188 |                       $s;
[INFO] [stdout]     |                         ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 408 | /         partial_consume_match!(self, {
[INFO] [stdout] 409 | |
[INFO] [stdout] 410 | |             Token{kind:Kind::Nlit,value:Some(_),place:_} => {
[INFO] [stdout] 411 | |                 if let Some(v) = self.token.value.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 443 | |             try!(self.parse_suffixed_expr())
[INFO] [stdout] 444 | |         });
[INFO] [stdout]     | |___________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse/parser.rs:193:20
[INFO] [stdout]     |
[INFO] [stdout] 193 |                   $fs;
[INFO] [stdout]     |                      ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 408 | /         partial_consume_match!(self, {
[INFO] [stdout] 409 | |
[INFO] [stdout] 410 | |             Token{kind:Kind::Nlit,value:Some(_),place:_} => {
[INFO] [stdout] 411 | |                 if let Some(v) = self.token.value.as_ref() {
[INFO] [stdout] ...   |
[INFO] [stdout] 443 | |             try!(self.parse_suffixed_expr())
[INFO] [stdout] 444 | |         });
[INFO] [stdout]     | |___________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/parse/parser.rs:480:13
[INFO] [stdout]     |
[INFO] [stdout] 480 |             /// right associative, 1 ^ ( 10 ^ 9 )
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 481 |             Kind::Pow => (10, 9),
[INFO] [stdout]     |             -------------------- rustdoc does not generate documentation for match arms
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/parse/parser.rs:483:13
[INFO] [stdout]     |
[INFO] [stdout] 483 |             /// right associative, 1 ^ ( 10 ^ 9 )
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 484 |             Kind::Ddot => (5, 4),
[INFO] [stdout]     |             -------------------- rustdoc does not generate documentation for match arms
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/parse/parser.rs:275:58
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 Token{kind:Kind::Fun,value:_,place:_} => self.parse_fun_stmt();
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^- help: consider using a semicolon here
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          expected `()`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `std::result::Result<ParsePayload<'_>, parser::ParseError<'_>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/parse/parser.rs:443:13
[INFO] [stdout]     |
[INFO] [stdout] 443 |             try!(self.parse_suffixed_expr())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             expected `()`, found enum `ParsePayload`
[INFO] [stdout]     |             help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `muun`.
[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/parse/parser.rs:275:58
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 Token{kind:Kind::Fun,value:_,place:_} => self.parse_fun_stmt();
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^- help: consider using a semicolon here
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          expected `()`, found enum `std::result::Result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected unit type `()`
[INFO] [stdout]                     found enum `std::result::Result<ParsePayload<'_>, parser::ParseError<'_>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/parse/parser.rs:443:13
[INFO] [stdout]     |
[INFO] [stdout] 443 |             try!(self.parse_suffixed_expr())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             expected `()`, found enum `ParsePayload`
[INFO] [stdout]     |             help: consider using a semicolon here
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "56a0eedd95761b6934ba55d6d73236b77adfae9e3ef8e137d39170064a5b2e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56a0eedd95761b6934ba55d6d73236b77adfae9e3ef8e137d39170064a5b2e6b", kill_on_drop: false }`
[INFO] [stdout] 56a0eedd95761b6934ba55d6d73236b77adfae9e3ef8e137d39170064a5b2e6b
