[INFO] updating cached repository https://github.com/conundrumer/crossword [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] cec0ee1cc7277c14c4afeb48fc9488b7fa941ab3 [INFO] testing conundrumer/crossword against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconundrumer%2Fcrossword" "/workspace/builds/worker-14/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/conundrumer/crossword on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/conundrumer/crossword [INFO] finished tweaking git repo https://github.com/conundrumer/crossword [INFO] tweaked toml for git repo https://github.com/conundrumer/crossword written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/conundrumer/crossword already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8d1170fdae831c31738f2810938a9bfb98cf8326ddb25165676809850ae16f30 [INFO] running `"docker" "start" "-a" "8d1170fdae831c31738f2810938a9bfb98cf8326ddb25165676809850ae16f30"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling crossword v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(conservative_impl_trait)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/main.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(test)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/grid.rs:25:21 [INFO] [stderr] | [INFO] [stderr] 25 | vec![Empty; ((bb.width() as usize) * (bb.height() as usize))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/generate.rs:41:38 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn iter<'b>(&'b self) -> Box + 'b> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator + 'b` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/generate.rs:46:62 [INFO] [stderr] | [INFO] [stderr] 46 | pub fn multi_iter<'b>(&'b self, num_iters: usize) -> Box + 'b> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator + 'b` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/generate.rs:78:112 [INFO] [stderr] | [INFO] [stderr] 78 | fn from_word_vec_partial<'b>(&'b self, crossword: Crossword, candidates: Rc>, seed: u64) -> Box>)> + 'b> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>)> + 'b` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/generate.rs:89:114 [INFO] [stderr] | [INFO] [stderr] 89 | fn from_word_vec_recursive<'b>(&'b self, crossword: Crossword, candidates: Rc>, seed: u64) -> Box + 'b> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator + 'b` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/generate.rs:100:104 [INFO] [stderr] | [INFO] [stderr] 100 | fn from_word_vec<'b>(&'b self, crossword: Crossword, candidates: Rc>, seed: u64) -> Box>)> + 'b> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator>)> + 'b` [INFO] [stderr] [INFO] [stderr] warning: a method with this name may be added to the standard library in the future [INFO] [stderr] --> src/filter.rs:32:57 [INFO] [stderr] | [INFO] [stderr] 32 | if let Some(area) = cell_areas.borrow().last() { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stderr] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stderr] = note: for more information, see issue #48919 [INFO] [stderr] = help: call with fully qualified syntax `filter::CollectionWithLast::last(...)` to keep using the current method [INFO] [stderr] [INFO] [stderr] warning: a method with this name may be added to the standard library in the future [INFO] [stderr] --> src/filter.rs:56:44 [INFO] [stderr] | [INFO] [stderr] 56 | if let Some(last_area) = areas.last() { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stderr] = note: for more information, see issue #48919 [INFO] [stderr] = help: call with fully qualified syntax `filter::CollectionWithLast::last(...)` to keep using the current method [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors; 8 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `crossword`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "8d1170fdae831c31738f2810938a9bfb98cf8326ddb25165676809850ae16f30"` [INFO] running `"docker" "rm" "-f" "8d1170fdae831c31738f2810938a9bfb98cf8326ddb25165676809850ae16f30"` [INFO] [stdout] 8d1170fdae831c31738f2810938a9bfb98cf8326ddb25165676809850ae16f30