[INFO] updating cached repository https://github.com/shiroyasha/rust-too-many-lists [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] ecb394b3200df168f4a95e0051bb810ffb4d7cf6 [INFO] testing shiroyasha/rust-too-many-lists against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiroyasha%2Frust-too-many-lists" "/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/shiroyasha/rust-too-many-lists on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/shiroyasha/rust-too-many-lists [INFO] finished tweaking git repo https://github.com/shiroyasha/rust-too-many-lists [INFO] tweaked toml for git repo https://github.com/shiroyasha/rust-too-many-lists written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/shiroyasha/rust-too-many-lists already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [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=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" "+1.44.0" "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] 3ba044f397b3c2fafea965490015dd73c1479a5948f10fee9398defbeede5ed0 [INFO] running `"docker" "start" "-a" "3ba044f397b3c2fafea965490015dd73c1479a5948f10fee9398defbeede5ed0"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust-too-many-lists v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variant is never constructed: `More` [INFO] [stderr] --> src/first.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | More(Box), [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `elem` [INFO] [stderr] --> src/first.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | elem: i32, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/first.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `push` [INFO] [stderr] --> src/first.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | pub fn push(&mut self, elem: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `pop` [INFO] [stderr] --> src/first.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/second.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `push` [INFO] [stderr] --> src/second.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | pub fn push(&mut self, elem: T) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek` [INFO] [stderr] --> src/second.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | pub fn peek(&self) -> Option<&T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `peek_mut` [INFO] [stderr] --> src/second.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | pub fn peek_mut(&mut self) -> Option<&mut T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `into_iter` [INFO] [stderr] --> src/second.rs:63:5 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn into_iter(self) -> IntoIter { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `iter` [INFO] [stderr] --> src/second.rs:81:5 [INFO] [stderr] | [INFO] [stderr] 81 | pub fn iter<'a>(&'a self) -> Iter<'a, T> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Tree` [INFO] [stderr] --> src/treeee.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | pub struct Tree<'a> { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: type alias is never used: `Link` [INFO] [stderr] --> src/treeee.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | type Link<'a> = Option>>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Node` [INFO] [stderr] --> src/treeee.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Node<'a> { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/treeee.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn new() -> Self { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add` [INFO] [stderr] --> src/treeee.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | pub fn add(&mut self, value: &'a str) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `display` [INFO] [stderr] --> src/treeee.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | pub fn display(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `insert` [INFO] [stderr] --> src/treeee.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | fn insert(head: &mut Node<'a>, new_node : Box>) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `display_node` [INFO] [stderr] --> src/treeee.rs:49:5 [INFO] [stderr] | [INFO] [stderr] 49 | fn display_node(node : &Node, depth: i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `insert` [INFO] [stderr] --> src/four.rs:12:4 [INFO] [stderr] | [INFO] [stderr] 12 | fn insert<'a>(c : &mut Collection<'a>, e : Box>) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `a` [INFO] [stderr] --> src/four.rs:17:4 [INFO] [stderr] | [INFO] [stderr] 17 | fn a<'a>() -> Collection<'a> { [INFO] [stderr] | ^ [INFO] [stderr] [INFO] [stderr] warning: 21 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.55s [INFO] running `"docker" "inspect" "3ba044f397b3c2fafea965490015dd73c1479a5948f10fee9398defbeede5ed0"` [INFO] running `"docker" "rm" "-f" "3ba044f397b3c2fafea965490015dd73c1479a5948f10fee9398defbeede5ed0"` [INFO] [stdout] 3ba044f397b3c2fafea965490015dd73c1479a5948f10fee9398defbeede5ed0 [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=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" "+1.44.0" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] cbbf01898e945e26b94931de70ab3a734c0866e11c82edea7d5581c7adccfa30 [INFO] running `"docker" "start" "-a" "cbbf01898e945e26b94931de70ab3a734c0866e11c82edea7d5581c7adccfa30"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust-too-many-lists v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.99s [INFO] running `"docker" "inspect" "cbbf01898e945e26b94931de70ab3a734c0866e11c82edea7d5581c7adccfa30"` [INFO] running `"docker" "rm" "-f" "cbbf01898e945e26b94931de70ab3a734c0866e11c82edea7d5581c7adccfa30"` [INFO] [stdout] cbbf01898e945e26b94931de70ab3a734c0866e11c82edea7d5581c7adccfa30 [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=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" "+1.44.0" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 615d1b7ec0921e61ad2382b1501131915e1cb809653a09fcca797939a7412ad7 [INFO] running `"docker" "start" "-a" "615d1b7ec0921e61ad2382b1501131915e1cb809653a09fcca797939a7412ad7"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_too_many_lists-e72e03542d271f64 [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test first::test::basics ... ok [INFO] [stdout] test second::test::iter ... ok [INFO] [stdout] test second::test::peek_mut_test ... ok [INFO] [stdout] test second::test::peek_test ... ok [INFO] [stdout] test treeee::test::treeee_test ... ok [INFO] [stdout] test second::test::basics ... ok [INFO] [stdout] test four::a_test ... ok [INFO] [stdout] test second::test::into_iter_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "615d1b7ec0921e61ad2382b1501131915e1cb809653a09fcca797939a7412ad7"` [INFO] running `"docker" "rm" "-f" "615d1b7ec0921e61ad2382b1501131915e1cb809653a09fcca797939a7412ad7"` [INFO] [stdout] 615d1b7ec0921e61ad2382b1501131915e1cb809653a09fcca797939a7412ad7