[INFO] cloning repository https://github.com/hawnzug/simple-type-infer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hawnzug/simple-type-infer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fsimple-type-infer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fsimple-type-infer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34873dd233261ff4fdd40c6ccdeb9e30206f7202
[INFO] checking hawnzug/simple-type-infer against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhawnzug%2Fsimple-type-infer" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hawnzug/simple-type-infer on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hawnzug/simple-type-infer
[INFO] finished tweaking git repo https://github.com/hawnzug/simple-type-infer
[INFO] tweaked toml for git repo https://github.com/hawnzug/simple-type-infer written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/hawnzug/simple-type-infer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded custom_derive v0.1.5
[INFO] [stderr]   Downloaded chomp v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc4c528a0e94d733c03f5f421d817fd064cc5c4e43e62094d4fe60aacac0b9ab
[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" "bc4c528a0e94d733c03f5f421d817fd064cc5c4e43e62094d4fe60aacac0b9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc4c528a0e94d733c03f5f421d817fd064cc5c4e43e62094d4fe60aacac0b9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc4c528a0e94d733c03f5f421d817fd064cc5c4e43e62094d4fe60aacac0b9ab", kill_on_drop: false }`
[INFO] [stdout] bc4c528a0e94d733c03f5f421d817fd064cc5c4e43e62094d4fe60aacac0b9ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e10df6de757261ee3920fc6a232593d758e3abbf56f73fa3bee1a020ca97cfa4
[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" "e10df6de757261ee3920fc6a232593d758e3abbf56f73fa3bee1a020ca97cfa4", kill_on_drop: false }`
[INFO] [stderr]     Checking custom_derive v0.1.5
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking chomp v0.2.5
[INFO] [stderr]     Checking type_infer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     parse!{i;
[INFO] [stdout] 18 | |         let later = take_while1(is_digit);
[INFO] [stdout] 19 | |         ret to_malint(from_utf8(later).unwrap().to_string())
[INFO] [stdout] 20 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     parse!{i;
[INFO] [stdout] 18 | |         let later = take_while1(is_digit);
[INFO] [stdout] 19 | |         ret to_malint(from_utf8(later).unwrap().to_string())
[INFO] [stdout] 20 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     parse!{i;
[INFO] [stdout] 25 | |         let s = take_while1(is_alpha);
[INFO] [stdout] 26 | |         ret Term::Symbol(from_utf8(s).unwrap().to_string())
[INFO] [stdout] 27 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     parse!{i;
[INFO] [stdout] 25 | |         let s = take_while1(is_alpha);
[INFO] [stdout] 26 | |         ret Term::Symbol(from_utf8(s).unwrap().to_string())
[INFO] [stdout] 27 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     parse!{i;
[INFO] [stdout] 32 | |         token(b'(');
[INFO] [stdout] 33 | |         skip_whitespace();
[INFO] [stdout] 34 | |         string(b"lambda");
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |         ret Term::Lambda(from_utf8(arg).unwrap().to_string(), Box::new(body))
[INFO] [stdout] 40 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     parse!{i;
[INFO] [stdout] 32 | |         token(b'(');
[INFO] [stdout] 33 | |         skip_whitespace();
[INFO] [stdout] 34 | |         string(b"lambda");
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |         ret Term::Lambda(from_utf8(arg).unwrap().to_string(), Box::new(body))
[INFO] [stdout] 40 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     parse!{i;
[INFO] [stdout] 45 | |         token(b'(');
[INFO] [stdout] 46 | |         skip_whitespace();
[INFO] [stdout] 47 | |         token(b'+');
[INFO] [stdout] ...  |
[INFO] [stdout] 52 | |         ret Term::Add(Box::new(a), Box::new(b))
[INFO] [stdout] 53 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | /     parse!{i;
[INFO] [stdout] 45 | |         token(b'(');
[INFO] [stdout] 46 | |         skip_whitespace();
[INFO] [stdout] 47 | |         token(b'+');
[INFO] [stdout] ...  |
[INFO] [stdout] 52 | |         ret Term::Add(Box::new(a), Box::new(b))
[INFO] [stdout] 53 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     parse!{i;
[INFO] [stdout] 58 | |         token(b'(');
[INFO] [stdout] 59 | |         skip_whitespace();
[INFO] [stdout] 60 | |         string(b"if");
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |         ret Term::If(Box::new(a), Box::new(b), Box::new(c))
[INFO] [stdout] 67 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     parse!{i;
[INFO] [stdout] 58 | |         token(b'(');
[INFO] [stdout] 59 | |         skip_whitespace();
[INFO] [stdout] 60 | |         string(b"if");
[INFO] [stdout] ...  |
[INFO] [stdout] 66 | |         ret Term::If(Box::new(a), Box::new(b), Box::new(c))
[INFO] [stdout] 67 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | /     parse!{i;
[INFO] [stdout] 72 | |         token(b'(');
[INFO] [stdout] 73 | |         let func = parse_all();
[INFO] [stdout] 74 | |         let arg = parse_all();
[INFO] [stdout] 75 | |         token(b')');
[INFO] [stdout] 76 | |         ret Term::Apply(Box::new(func), Box::new(arg))
[INFO] [stdout] 77 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | /     parse!{i;
[INFO] [stdout] 72 | |         token(b'(');
[INFO] [stdout] 73 | |         let func = parse_all();
[INFO] [stdout] 74 | |         let arg = parse_all();
[INFO] [stdout] 75 | |         token(b')');
[INFO] [stdout] 76 | |         ret Term::Apply(Box::new(func), Box::new(arg))
[INFO] [stdout] 77 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | /     parse!{i;
[INFO] [stdout] 90 | |         skip_whitespace();
[INFO] [stdout] 91 | |         let t = r();
[INFO] [stdout] 92 | |         skip_whitespace();
[INFO] [stdout] 93 | |         ret t
[INFO] [stdout] 94 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chomp::ascii::is_alpha`
[INFO] [stdout]  --> src/reader.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use chomp::ascii::is_alpha;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chomp::ascii::is_digit`
[INFO] [stdout]  --> src/reader.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chomp::ascii::is_digit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chomp::ascii::skip_whitespace`
[INFO] [stdout]  --> src/reader.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chomp::ascii::skip_whitespace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::from_utf8`
[INFO] [stdout]  --> src/reader.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::from_utf8;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/eval.rs:60:22
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn lookup(&self, &str) -> Option<Typ>;
[INFO] [stdout]    |                      ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `.`
[INFO] [stdout]   --> src/reader.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 89 | /     parse!{i;
[INFO] [stdout] 90 | |         skip_whitespace();
[INFO] [stdout] 91 | |         let t = r();
[INFO] [stdout] 92 | |         skip_whitespace();
[INFO] [stdout] 93 | |         ret t
[INFO] [stdout] 94 | |     }
[INFO] [stdout]    | |     ^
[INFO] [stdout]    | |     |
[INFO] [stdout]    | |_____expected expression
[INFO] [stdout]    |       in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `__parse_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chomp::ascii::is_alpha`
[INFO] [stdout]  --> src/reader.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use chomp::ascii::is_alpha;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chomp::ascii::is_digit`
[INFO] [stdout]  --> src/reader.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chomp::ascii::is_digit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chomp::ascii::skip_whitespace`
[INFO] [stdout]  --> src/reader.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chomp::ascii::skip_whitespace;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::from_utf8`
[INFO] [stdout]  --> src/reader.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::from_utf8;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/eval.rs:60:22
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn lookup(&self, &str) -> Option<Typ>;
[INFO] [stdout]    |                      ^^^^ help: try naming the parameter or explicitly ignoring it: `_: &str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `type_infer` due to 8 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e10df6de757261ee3920fc6a232593d758e3abbf56f73fa3bee1a020ca97cfa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e10df6de757261ee3920fc6a232593d758e3abbf56f73fa3bee1a020ca97cfa4", kill_on_drop: false }`
[INFO] [stdout] e10df6de757261ee3920fc6a232593d758e3abbf56f73fa3bee1a020ca97cfa4