[INFO] fetching crate turingarena-iospec 0.1.0...
[INFO] testing turingarena-iospec-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate turingarena-iospec 0.1.0 into /workspace/builds/worker-118/source
[INFO] validating manifest of crates.io crate turingarena-iospec 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate turingarena-iospec 0.1.0
[INFO] finished tweaking crates.io crate turingarena-iospec 0.1.0
[INFO] tweaked toml for crates.io crate turingarena-iospec 0.1.0 written to /workspace/builds/worker-118/source/Cargo.toml
[INFO] crate crates.io crate turingarena-iospec 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb41ba8aa743242bac4f493900934daee34b077424d4bfcf8b514cba719dcf38
[INFO] running `Command { std: "docker" "start" "-a" "cb41ba8aa743242bac4f493900934daee34b077424d4bfcf8b514cba719dcf38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb41ba8aa743242bac4f493900934daee34b077424d4bfcf8b514cba719dcf38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb41ba8aa743242bac4f493900934daee34b077424d4bfcf8b514cba719dcf38", kill_on_drop: false }`
[INFO] [stdout] cb41ba8aa743242bac4f493900934daee34b077424d4bfcf8b514cba719dcf38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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=warn" "-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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfd44a34d7f090434c42e77411b2f87fc3ffb2c9fc60f3de7b821cbfbcb3168b
[INFO] running `Command { std: "docker" "start" "-a" "cfd44a34d7f090434c42e77411b2f87fc3ffb2c9fc60f3de7b821cbfbcb3168b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling relative-path v1.3.2
[INFO] [stderr]    Compiling yansi-term v0.1.2
[INFO] [stderr]    Compiling by_address v1.0.4
[INFO] [stderr]    Compiling codemap v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling annotate-snippets v0.9.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling genco-macros v0.15.0
[INFO] [stderr]    Compiling genco v0.15.0
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/csharp/mod.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 | /                 quote_in! { file =>
[INFO] [stdout] 61 | |                     namespace #namespace {
[INFO] [stdout] 62 | |                         #tokens
[INFO] [stdout] 63 | |                     }
[INFO] [stdout] 64 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/csharp/mod.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |                 quote_in!(*out => using #namespace;);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/dart/mod.rs:209:17
[INFO] [stdout]     |
[INFO] [stdout] 209 |                 quote_in!(*out => import #(quoted(name)) as #alias;);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/dart/mod.rs:211:17
[INFO] [stdout]     |
[INFO] [stdout] 211 |                 quote_in!(*out => import #(quoted(name)););
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/go.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 quote_in!(header => package #package);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/go.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             quote_in!(*out => import #(quoted(module)));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/java/mod.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 quote_in!(header => package #package;);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/java/mod.rs:205:24
[INFO] [stdout]     |
[INFO] [stdout] 205 |             out.append(quote!(import #(package.clone())#(SEP)#(name.clone());));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/js.rs:457:13
[INFO] [stdout]     |
[INFO] [stdout] 457 | /             quote_in! { *out =>
[INFO] [stdout] 458 | |                 import * as #name from #(ref t => render_from(t, config.module_path.as_deref(), module));
[INFO] [stdout] 459 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/js.rs:464:13
[INFO] [stdout]     |
[INFO] [stdout] 464 | /             quote_in! { *out =>
[INFO] [stdout] 465 | |                 import #(ref tokens => {
[INFO] [stdout] 466 | |                     if let Some(default) = module.default_import {
[INFO] [stdout] 467 | |                         tokens.append(ItemStr::from(default));
[INFO] [stdout] ...   |
[INFO] [stdout] 498 | |                 }) from #(ref t => render_from(t, config.module_path.as_deref(), name));
[INFO] [stdout] 499 | |             };
[INFO] [stdout]     | |______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/js.rs:517:13
[INFO] [stdout]     |
[INFO] [stdout] 517 | /             quote_in! { *t =>
[INFO] [stdout] 518 | |                 #(match (module_path, module) {
[INFO] [stdout] 519 | |                     (_, Module::Global(from)) => #(quoted(from)),
[INFO] [stdout] 520 | |                     (None, Module::Path(path)) => #(quoted(path.as_str())),
[INFO] [stdout] 521 | |                     (Some(module_path), Module::Path(path)) => #(quoted(module_path.relative(path).as_str())),
[INFO] [stdout] 522 | |                 })
[INFO] [stdout] 523 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/python.rs:332:38
[INFO] [stdout]     |
[INFO] [stdout] 332 |                 .map(|(name, alias)| quote!(#name#(if let Some(a) = alias => #<space>as #a)))
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/python.rs:336:17
[INFO] [stdout]     |
[INFO] [stdout] 336 | /                 quote_in! {*out =>
[INFO] [stdout] 337 | |                     from #module import #(imports.into_iter().next())
[INFO] [stdout] 338 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/python.rs:340:17
[INFO] [stdout]     |
[INFO] [stdout] 340 | /                 quote_in! {*out =>
[INFO] [stdout] 341 | |                     from #module import #(for i in imports join (, ) => #i)
[INFO] [stdout] 342 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/python.rs:349:13
[INFO] [stdout]     |
[INFO] [stdout] 349 | /             quote_in! {*out =>
[INFO] [stdout] 350 | |                 import #module#(if let Some(a) = alias => #<space>as #a)
[INFO] [stdout] 351 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/rust.rs:478:21
[INFO] [stdout]     |
[INFO] [stdout] 478 | /                     quote_in! { *out =>
[INFO] [stdout] 479 | |                         use #m::{#(ref o =>
[INFO] [stdout] 480 | |                             first.render(o);
[INFO] [stdout] 481 | |                             quote_in!(*o => , #(ref o => second.render(o)));
[INFO] [stdout] ...   |
[INFO] [stdout] 486 | |                         )};
[INFO] [stdout] 487 | |                     };
[INFO] [stdout]     | |______________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/rust.rs:491:29
[INFO] [stdout]     |
[INFO] [stdout] 491 | ...                   quote_in!(*out => use #m;);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/rust.rs:494:29
[INFO] [stdout]     |
[INFO] [stdout] 494 | ...                   quote_in!(*out => use #m as #alias;);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/rust.rs:500:29
[INFO] [stdout]     |
[INFO] [stdout] 500 | ...                   quote_in!(*out => use #m::#name as #alias;);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/rust.rs:503:29
[INFO] [stdout]     |
[INFO] [stdout] 503 | ...                   quote_in!(*out => use #m::#name;);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/rust.rs:584:25
[INFO] [stdout]     |
[INFO] [stdout] 584 |                         quote_in!(*out => self);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/rust.rs:587:25
[INFO] [stdout]     |
[INFO] [stdout] 587 |                         quote_in!(*out => self as #alias);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/rust.rs:593:25
[INFO] [stdout]     |
[INFO] [stdout] 593 |                         quote_in!(*out => #name as #alias);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/rust.rs:596:25
[INFO] [stdout]     |
[INFO] [stdout] 596 |                         quote_in!(*out => #name);
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Your compiler does not support spans which is required by genco, see: https://github.com/rust-lang/rust/issues/54725
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/genco-0.15.0/src/lang/swift.rs:107:17
[INFO] [stdout]     |
[INFO] [stdout] 107 |                 quote_in! { *out => #<push>import #module}
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `quote_in` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 25 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `genco` due to 26 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cfd44a34d7f090434c42e77411b2f87fc3ffb2c9fc60f3de7b821cbfbcb3168b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd44a34d7f090434c42e77411b2f87fc3ffb2c9fc60f3de7b821cbfbcb3168b", kill_on_drop: false }`
[INFO] [stdout] cfd44a34d7f090434c42e77411b2f87fc3ffb2c9fc60f3de7b821cbfbcb3168b
