[INFO] updating cached repository https://github.com/mmmpa/learning_rust_data_structure [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] 255d021cb8214c82ca6d6002070da8d59b5c87a3 [INFO] testing mmmpa/learning_rust_data_structure against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmmpa%2Flearning_rust_data_structure" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mmmpa/learning_rust_data_structure 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/mmmpa/learning_rust_data_structure [INFO] finished tweaking git repo https://github.com/mmmpa/learning_rust_data_structure [INFO] tweaked toml for git repo https://github.com/mmmpa/learning_rust_data_structure written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/mmmpa/learning_rust_data_structure 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 89453c1b6c81f73fbbe55ca74bd37c15161a7d8b87536122443d73d814963e60 [INFO] running `"docker" "start" "-a" "89453c1b6c81f73fbbe55ca74bd37c15161a7d8b87536122443d73d814963e60"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling trees v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `core::borrow::BorrowMut` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use core::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::borrow::BorrowMut` [INFO] [stderr] --> src/binary_search_tree.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use core::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::borrow::BorrowMut` [INFO] [stderr] --> src/parental_binary_search_tree.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use core::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/binary_search_tree.rs:62:18 [INFO] [stderr] | [INFO] [stderr] 62 | Some(mut node) => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parental_binary_search_tree.rs:63:18 [INFO] [stderr] | [INFO] [stderr] 63 | Some(mut node) => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: type alias is never used: `Traced` [INFO] [stderr] --> src/binary_search_tree.rs:7:1 [INFO] [stderr] | [INFO] [stderr] 7 | type Traced = Rc>>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/binary_search_tree.rs:22:8 [INFO] [stderr] | [INFO] [stderr] 22 | fn new(value: T) -> Node { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/binary_search_tree.rs:46:12 [INFO] [stderr] | [INFO] [stderr] 46 | pub fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `insert` [INFO] [stderr] --> src/binary_search_tree.rs:53:12 [INFO] [stderr] | [INFO] [stderr] 53 | pub fn insert(&mut self, v: T) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `insert_support` [INFO] [stderr] --> src/binary_search_tree.rs:59:8 [INFO] [stderr] | [INFO] [stderr] 59 | fn insert_support(&mut self, root: Node, v: T) -> Node { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `trace` [INFO] [stderr] --> src/binary_search_tree.rs:76:8 [INFO] [stderr] | [INFO] [stderr] 76 | fn trace(&self) -> Vec> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `trace_support` [INFO] [stderr] --> src/binary_search_tree.rs:82:8 [INFO] [stderr] | [INFO] [stderr] 82 | fn trace_support(&self, root: &Node, result: &mut Vec>) { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type alias is never used: `Traced` [INFO] [stderr] --> src/parental_binary_search_tree.rs:7:1 [INFO] [stderr] | [INFO] [stderr] 7 | type Traced = Rc>>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `parent` [INFO] [stderr] --> src/parental_binary_search_tree.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | parent: Node, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/parental_binary_search_tree.rs:23:8 [INFO] [stderr] | [INFO] [stderr] 23 | fn new(value: T, parent: Node) -> Node { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/parental_binary_search_tree.rs:47:12 [INFO] [stderr] | [INFO] [stderr] 47 | pub fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `insert` [INFO] [stderr] --> src/parental_binary_search_tree.rs:54:12 [INFO] [stderr] | [INFO] [stderr] 54 | pub fn insert(&mut self, v: T) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `insert_support` [INFO] [stderr] --> src/parental_binary_search_tree.rs:60:8 [INFO] [stderr] | [INFO] [stderr] 60 | fn insert_support(&mut self, root: Node, v: T, p: Node) -> Node { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `trace` [INFO] [stderr] --> src/parental_binary_search_tree.rs:78:8 [INFO] [stderr] | [INFO] [stderr] 78 | fn trace(&self) -> Vec> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `trace_support` [INFO] [stderr] --> src/parental_binary_search_tree.rs:84:8 [INFO] [stderr] | [INFO] [stderr] 84 | fn trace_support(&self, root: &Node, result: &mut Vec>) { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 20 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `"docker" "inspect" "89453c1b6c81f73fbbe55ca74bd37c15161a7d8b87536122443d73d814963e60"` [INFO] running `"docker" "rm" "-f" "89453c1b6c81f73fbbe55ca74bd37c15161a7d8b87536122443d73d814963e60"` [INFO] [stdout] 89453c1b6c81f73fbbe55ca74bd37c15161a7d8b87536122443d73d814963e60 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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] c5630daa368db7738e7a0df0b72ecd039727d165f97d5f412d0eef691c791677 [INFO] running `"docker" "start" "-a" "c5630daa368db7738e7a0df0b72ecd039727d165f97d5f412d0eef691c791677"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling trees v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `core::borrow::BorrowMut` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use core::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::borrow::BorrowMut` [INFO] [stderr] --> src/binary_search_tree.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use core::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::borrow::BorrowMut` [INFO] [stderr] --> src/parental_binary_search_tree.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use core::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let mut raw_box = Rc::new(Test { value: None }); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/binary_search_tree.rs:62:18 [INFO] [stderr] | [INFO] [stderr] 62 | Some(mut node) => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parental_binary_search_tree.rs:63:18 [INFO] [stderr] | [INFO] [stderr] 63 | Some(mut node) => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never read: `parent` [INFO] [stderr] --> src/parental_binary_search_tree.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | parent: Node, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.21s [INFO] running `"docker" "inspect" "c5630daa368db7738e7a0df0b72ecd039727d165f97d5f412d0eef691c791677"` [INFO] running `"docker" "rm" "-f" "c5630daa368db7738e7a0df0b72ecd039727d165f97d5f412d0eef691c791677"` [INFO] [stdout] c5630daa368db7738e7a0df0b72ecd039727d165f97d5f412d0eef691c791677 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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] 96a89719499392f37ea66cabc89a813616fb3fd8374b16d42150d5590a5ab41a [INFO] running `"docker" "start" "-a" "96a89719499392f37ea66cabc89a813616fb3fd8374b16d42150d5590a5ab41a"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `core::borrow::BorrowMut` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use core::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::borrow::BorrowMut` [INFO] [stderr] --> src/binary_search_tree.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use core::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::borrow::BorrowMut` [INFO] [stderr] --> src/parental_binary_search_tree.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use core::borrow::BorrowMut; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let mut raw_box = Rc::new(Test { value: None }); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/binary_search_tree.rs:62:18 [INFO] [stderr] | [INFO] [stderr] 62 | Some(mut node) => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/parental_binary_search_tree.rs:63:18 [INFO] [stderr] | [INFO] [stderr] 63 | Some(mut node) => { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never read: `parent` [INFO] [stderr] --> src/parental_binary_search_tree.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | parent: Node, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/trees-b90f31f62ca08107 [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test test_box ... ok [INFO] [stdout] test parental_binary_search_tree::test_insert ... ok [INFO] [stdout] test test_rc ... ok [INFO] [stdout] test binary_search_tree::test_insert ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "96a89719499392f37ea66cabc89a813616fb3fd8374b16d42150d5590a5ab41a"` [INFO] running `"docker" "rm" "-f" "96a89719499392f37ea66cabc89a813616fb3fd8374b16d42150d5590a5ab41a"` [INFO] [stdout] 96a89719499392f37ea66cabc89a813616fb3fd8374b16d42150d5590a5ab41a