[INFO] fetching crate mod_language 0.1.22...
[INFO] building mod_language-0.1.22 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate mod_language 0.1.22 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mod_language 0.1.22 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mod_language 0.1.22
[INFO] finished tweaking crates.io crate mod_language 0.1.22
[INFO] tweaked toml for crates.io crate mod_language 0.1.22 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate mod_language 0.1.22 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4608e6ece339122b4727f3e59d1564ad0e52bc9a0a820cf024a7b74ff0fd804
[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" "a4608e6ece339122b4727f3e59d1564ad0e52bc9a0a820cf024a7b74ff0fd804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4608e6ece339122b4727f3e59d1564ad0e52bc9a0a820cf024a7b74ff0fd804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4608e6ece339122b4727f3e59d1564ad0e52bc9a0a820cf024a7b74ff0fd804", kill_on_drop: false }`
[INFO] [stdout] a4608e6ece339122b4727f3e59d1564ad0e52bc9a0a820cf024a7b74ff0fd804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c269b626275ce406927f408ce7dcaf87c164ce9d37b55fa737434f70dadf098f
[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" "c269b626275ce406927f408ce7dcaf87c164ce9d37b55fa737434f70dadf098f", kill_on_drop: false }`
[INFO] [stderr]    Compiling mod_utilities v0.1.2
[INFO] [stderr]    Compiling mod_language v0.1.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib/ctx.rs:173:39
[INFO] [stdout]     |
[INFO] [stdout] 173 |     *self.entries.get(ident.as_ref()).unwrap_unchecked()
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `unwrap_unchecked(...)` to keep using the current method
[INFO] [stdout]     = help: add `#![feature(option_result_unwrap_unchecked)]` to the crate attributes to enable `Option::<T>::unwrap_unchecked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/lib/analyzer/mod.rs:69:40
[INFO] [stdout]    |
[INFO] [stdout] 69 |     unsafe { self.active_modules.pop().unwrap_unchecked() }
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `unwrap_unchecked(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(option_result_unwrap_unchecked)]` to the crate attributes to enable `Option::<T>::unwrap_unchecked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/lib/analyzer/mod.rs:75:42
[INFO] [stdout]    |
[INFO] [stdout] 75 |     unsafe { *self.active_modules.last().unwrap_unchecked() }
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `unwrap_unchecked(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(option_result_unwrap_unchecked)]` to the crate attributes to enable `Option::<T>::unwrap_unchecked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `expect_none` found for enum `Option<LocalContext>` in the current scope
[INFO] [stdout]   --> src/lib/analyzer/mod.rs:94:57
[INFO] [stdout]    |
[INFO] [stdout] 94 |     self.local_context.replace(LocalContext::default()).expect_none("Internal error, cannot create LocalContext, one already exists");
[INFO] [stdout]    |                                                         ^^^^^^^^^^^ method not found in `Option<LocalContext>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future
[INFO] [stdout]   --> src/lib/analyzer/mod.rs:95:42
[INFO] [stdout]    |
[INFO] [stdout] 95 |     unsafe { self.local_context.as_mut().unwrap_unchecked() }
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]    = help: call with fully qualified syntax `unwrap_unchecked(...)` to keep using the current method
[INFO] [stdout]    = help: add `#![feature(option_result_unwrap_unchecked)]` to the crate attributes to enable `Option::<T>::unwrap_unchecked`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `expect_none` found for enum `Option<ir::Expression>` in the current scope
[INFO] [stdout]   --> src/lib/analyzer/passes/generate_bodies.rs:78:48
[INFO] [stdout]    |
[INFO] [stdout] 78 |           .initializer.replace(initializer_ir).expect_none("Internal error, global initializer IR replaced");
[INFO] [stdout]    |                                                ^^^^^^^^^^^ method not found in `Option<ir::Expression>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `expect_none` found for enum `Option<ir::Block>` in the current scope
[INFO] [stdout]    --> src/lib/analyzer/passes/generate_bodies.rs:103:41
[INFO] [stdout]     |
[INFO] [stdout] 103 |           .body.replace(some!(body_ir)).expect_none("Internal error, function body IR replaced");
[INFO] [stdout]     |                                         ^^^^^^^^^^^ method not found in `Option<ir::Block>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mod_language`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c269b626275ce406927f408ce7dcaf87c164ce9d37b55fa737434f70dadf098f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c269b626275ce406927f408ce7dcaf87c164ce9d37b55fa737434f70dadf098f", kill_on_drop: false }`
[INFO] [stdout] c269b626275ce406927f408ce7dcaf87c164ce9d37b55fa737434f70dadf098f
