[INFO] updating cached repository https://github.com/alex34567/scheme-oxide [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] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c57652784a5bab9693603ec5639b3256fceef0a9 [INFO] checking alex34567/scheme-oxide against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falex34567%2Fscheme-oxide" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/alex34567/scheme-oxide on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/alex34567/scheme-oxide [INFO] finished tweaking git repo https://github.com/alex34567/scheme-oxide [INFO] tweaked toml for git repo https://github.com/alex34567/scheme-oxide written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/alex34567/scheme-oxide already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d8a973127579a81a34acaa653db16c185b48f9d8edbacd325184fd46e6e504a8 [INFO] running `"docker" "start" "-a" "d8a973127579a81a34acaa653db16c185b48f9d8edbacd325184fd46e6e504a8"` [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking scheme-oxide v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: function is never used: `round_to_align` [INFO] [stderr] --> src/gc.rs:68:4 [INFO] [stderr] | [INFO] [stderr] 68 | fn round_to_align(size: usize, align: usize) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `traceable_size` [INFO] [stderr] --> src/gc.rs:77:4 [INFO] [stderr] | [INFO] [stderr] 77 | fn traceable_size(obj: &GcObj) -> usize [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `mut_option` [INFO] [stderr] --> src/gc.rs:108:5 [INFO] [stderr] | [INFO] [stderr] 108 | fn mut_option(&mut self) -> Option<&mut *const GcObjHead> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `to_ref` [INFO] [stderr] --> src/gc.rs:136:5 [INFO] [stderr] | [INFO] [stderr] 136 | unsafe fn to_ref(&self) -> &GcObj { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `size` [INFO] [stderr] --> src/gc.rs:174:5 [INFO] [stderr] | [INFO] [stderr] 174 | size: unsafe fn(&GcObjHead) -> usize, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `mark` [INFO] [stderr] --> src/gc.rs:175:5 [INFO] [stderr] | [INFO] [stderr] 175 | mark: unsafe fn(&GcObjHead, &mut *const GcObjHead), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `update` [INFO] [stderr] --> src/gc.rs:176:5 [INFO] [stderr] | [INFO] [stderr] 176 | update: unsafe fn(&GcObjHead), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `vtable` [INFO] [stderr] --> src/gc.rs:180:5 [INFO] [stderr] | [INFO] [stderr] 180 | vtable: &'static GcVtable, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `downcast_ref` [INFO] [stderr] --> src/gc.rs:185:5 [INFO] [stderr] | [INFO] [stderr] 185 | / unsafe fn downcast_ref(&self) -> &GcObj [INFO] [stderr] 186 | | where [INFO] [stderr] 187 | | T: Traceable, [INFO] [stderr] 188 | | { [INFO] [stderr] 189 | | &*(self as *const _ as *const GcObj) [INFO] [stderr] 190 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `downcast_ptr` [INFO] [stderr] --> src/gc.rs:193:5 [INFO] [stderr] | [INFO] [stderr] 193 | / fn downcast_ptr(ptr: *const Self) -> *const GcObj [INFO] [stderr] 194 | | where [INFO] [stderr] 195 | | T: Traceable, [INFO] [stderr] 196 | | { [INFO] [stderr] 197 | | ptr as *const GcObj [INFO] [stderr] 198 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `erase_ptr` [INFO] [stderr] --> src/gc.rs:214:5 [INFO] [stderr] | [INFO] [stderr] 214 | fn erase_ptr(ptr: *const Self) -> *const GcObjHead { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/gc.rs:220:5 [INFO] [stderr] | [INFO] [stderr] 220 | fn new(heap_size: usize, root_count: usize) -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `free_space` [INFO] [stderr] --> src/gc.rs:253:5 [INFO] [stderr] | [INFO] [stderr] 253 | fn free_space(&self) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `collect` [INFO] [stderr] --> src/gc.rs:257:5 [INFO] [stderr] | [INFO] [stderr] 257 | unsafe fn collect(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `put_on_heap` [INFO] [stderr] --> src/gc.rs:349:5 [INFO] [stderr] | [INFO] [stderr] 349 | / unsafe fn put_on_heap(&self, new_obj: T) -> Result, ()> [INFO] [stderr] 350 | | where [INFO] [stderr] 351 | | T: Traceable, [INFO] [stderr] 352 | | { [INFO] [stderr] ... | [INFO] [stderr] 377 | | Ok(self.make_root(ret)) [INFO] [stderr] 378 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `downcast_ref` [INFO] [stderr] --> src/gc.rs:185:5 [INFO] [stderr] | [INFO] [stderr] 185 | / unsafe fn downcast_ref(&self) -> &GcObj [INFO] [stderr] 186 | | where [INFO] [stderr] 187 | | T: Traceable, [INFO] [stderr] 188 | | { [INFO] [stderr] 189 | | &*(self as *const _ as *const GcObj) [INFO] [stderr] 190 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 15 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.03s [INFO] running `"docker" "inspect" "d8a973127579a81a34acaa653db16c185b48f9d8edbacd325184fd46e6e504a8"` [INFO] running `"docker" "rm" "-f" "d8a973127579a81a34acaa653db16c185b48f9d8edbacd325184fd46e6e504a8"` [INFO] [stdout] d8a973127579a81a34acaa653db16c185b48f9d8edbacd325184fd46e6e504a8