[INFO] updating cached repository https://github.com/jazz-lang/Jazz [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] [stderr] From https://github.com/jazz-lang/Jazz [INFO] [stderr] 0847484..79d8599 master -> master [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 79d8599cc5751797cb314266614734094041bad2 [INFO] checking jazz-lang/Jazz against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjazz-lang%2FJazz" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jazz-lang/Jazz on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69 [INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/jazz-lang/Jazz [INFO] finished tweaking git repo https://github.com/jazz-lang/Jazz [INFO] tweaked toml for git repo https://github.com/jazz-lang/Jazz written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/jazz-lang/Jazz already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 4ca0e13459b20c26732b1c541abe2d17757c1913d3605d7747e8491ffa02bb5a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "4ca0e13459b20c26732b1c541abe2d17757c1913d3605d7747e8491ffa02bb5a"` [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Compiling rayon-core v1.6.1 [INFO] [stderr] Checking crossbeam-queue v0.2.0 [INFO] [stderr] Checking colored v1.9.0 [INFO] [stderr] Checking parking_lot v0.10.0 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking rayon v1.2.1 [INFO] [stderr] Checking jwalk v0.4.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling derive_more v0.99.2 [INFO] [stderr] Compiling paste-impl v0.1.6 [INFO] [stderr] Checking paste v0.1.6 [INFO] [stderr] Checking lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `decl` [INFO] [stderr] --> src/semcheck/mod.rs:50:27 [INFO] [stderr] | [INFO] [stderr] 50 | base: fbbase, decl, .. [INFO] [stderr] | ^^^^ help: try ignoring the field: `decl: _` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `identifier` [INFO] [stderr] --> src/semcheck/mod.rs:55:21 [INFO] [stderr] | [INFO] [stderr] 55 | identifier, [INFO] [stderr] | ^^^^^^^^^^ help: try ignoring the field: `identifier: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `std_module` [INFO] [stderr] --> src/semcheck/mod.rs:144:13 [INFO] [stderr] | [INFO] [stderr] 144 | let std_module = Self::import_module(None, intern("std")); [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_std_module` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `decl` [INFO] [stderr] --> src/semcheck/mod.rs:149:17 [INFO] [stderr] | [INFO] [stderr] 149 | for decl in source_file.borrow().top_level_decls.iter() {} [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_decl` [INFO] [stderr] [INFO] [stderr] warning: variable `is_init_call` is assigned to, but never used [INFO] [stderr] --> src/semcheck/exprck.rs:1063:17 [INFO] [stderr] | [INFO] [stderr] 1063 | let mut is_init_call = false; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_is_init_call` instead [INFO] [stderr] [INFO] [stderr] warning: unused variable: `decl` [INFO] [stderr] --> src/semcheck/mod.rs:50:27 [INFO] [stderr] | [INFO] [stderr] 50 | base: fbbase, decl, .. [INFO] [stderr] | ^^^^ help: try ignoring the field: `decl: _` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `identifier` [INFO] [stderr] --> src/semcheck/mod.rs:55:21 [INFO] [stderr] | [INFO] [stderr] 55 | identifier, [INFO] [stderr] | ^^^^^^^^^^ help: try ignoring the field: `identifier: _` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `std_module` [INFO] [stderr] --> src/semcheck/mod.rs:144:13 [INFO] [stderr] | [INFO] [stderr] 144 | let std_module = Self::import_module(None, intern("std")); [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_std_module` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `decl` [INFO] [stderr] --> src/semcheck/mod.rs:149:17 [INFO] [stderr] | [INFO] [stderr] 149 | for decl in source_file.borrow().top_level_decls.iter() {} [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_decl` [INFO] [stderr] [INFO] [stderr] warning: variable `is_init_call` is assigned to, but never used [INFO] [stderr] --> src/semcheck/exprck.rs:1063:17 [INFO] [stderr] | [INFO] [stderr] 1063 | let mut is_init_call = false; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_is_init_call` instead [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 32.58s [INFO] running `"docker" "inspect" "4ca0e13459b20c26732b1c541abe2d17757c1913d3605d7747e8491ffa02bb5a"` [INFO] running `"docker" "rm" "-f" "4ca0e13459b20c26732b1c541abe2d17757c1913d3605d7747e8491ffa02bb5a"` [INFO] [stdout] 4ca0e13459b20c26732b1c541abe2d17757c1913d3605d7747e8491ffa02bb5a