[INFO] updating cached repository https://github.com/kazukiyoshida/data-structures-and-algorithms [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] 76dc6f7ff5231fc82cd4dadbec250a995e484fd6 [INFO] testing kazukiyoshida/data-structures-and-algorithms against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkazukiyoshida%2Fdata-structures-and-algorithms" "/workspace/builds/worker-8/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kazukiyoshida/data-structures-and-algorithms 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/kazukiyoshida/data-structures-and-algorithms [INFO] finished tweaking git repo https://github.com/kazukiyoshida/data-structures-and-algorithms [INFO] tweaked toml for git repo https://github.com/kazukiyoshida/data-structures-and-algorithms written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/kazukiyoshida/data-structures-and-algorithms 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] b14c4f827cf0ccfbaf2f57f5af22ae7db9c90ad7733ef199e05e900390c955e1 [INFO] running `"docker" "start" "-a" "b14c4f827cf0ccfbaf2f57f5af22ae7db9c90ad7733ef199e05e900390c955e1"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling data-structures-and-algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/linked_list.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn new(v: String) -> 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_empty` [INFO] [stderr] --> src/linked_list.rs:48:12 [INFO] [stderr] | [INFO] [stderr] 48 | pub fn new_empty() -> TransactionLog { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `append` [INFO] [stderr] --> src/linked_list.rs:56:12 [INFO] [stderr] | [INFO] [stderr] 56 | pub fn append(&mut self, v: String) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop` [INFO] [stderr] --> src/linked_list.rs:66:12 [INFO] [stderr] | [INFO] [stderr] 66 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/doubly_linked_list.rs:22:8 [INFO] [stderr] | [INFO] [stderr] 22 | fn new(v: String) -> Rc> { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new_empty` [INFO] [stderr] --> src/doubly_linked_list.rs:41:12 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn new_empty() -> BetterTransactionLog { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `append` [INFO] [stderr] --> src/doubly_linked_list.rs:49:12 [INFO] [stderr] | [INFO] [stderr] 49 | pub fn append(&mut self, v: String) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop` [INFO] [stderr] --> src/doubly_linked_list.rs:63:12 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/doubly_linked_list.rs:82:12 [INFO] [stderr] | [INFO] [stderr] 82 | pub fn iter(&self) -> ListIterator { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_iter` [INFO] [stderr] --> src/doubly_linked_list.rs:86:12 [INFO] [stderr] | [INFO] [stderr] 86 | pub fn back_iter(self) -> ListIterator { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.58s [INFO] running `"docker" "inspect" "b14c4f827cf0ccfbaf2f57f5af22ae7db9c90ad7733ef199e05e900390c955e1"` [INFO] running `"docker" "rm" "-f" "b14c4f827cf0ccfbaf2f57f5af22ae7db9c90ad7733ef199e05e900390c955e1"` [INFO] [stdout] b14c4f827cf0ccfbaf2f57f5af22ae7db9c90ad7733ef199e05e900390c955e1 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] f4517112fccbc50b19c872e1528a66f48c662586d318ebe2abe2d52ebb75fd3b [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" "f4517112fccbc50b19c872e1528a66f48c662586d318ebe2abe2d52ebb75fd3b"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling data-structures-and-algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/linked_list.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn new(v: String) -> 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_empty` [INFO] [stderr] --> src/linked_list.rs:48:12 [INFO] [stderr] | [INFO] [stderr] 48 | pub fn new_empty() -> TransactionLog { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `append` [INFO] [stderr] --> src/linked_list.rs:56:12 [INFO] [stderr] | [INFO] [stderr] 56 | pub fn append(&mut self, v: String) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop` [INFO] [stderr] --> src/linked_list.rs:66:12 [INFO] [stderr] | [INFO] [stderr] 66 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/doubly_linked_list.rs:22:8 [INFO] [stderr] | [INFO] [stderr] 22 | fn new(v: String) -> Rc> { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new_empty` [INFO] [stderr] --> src/doubly_linked_list.rs:41:12 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn new_empty() -> BetterTransactionLog { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `append` [INFO] [stderr] --> src/doubly_linked_list.rs:49:12 [INFO] [stderr] | [INFO] [stderr] 49 | pub fn append(&mut self, v: String) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop` [INFO] [stderr] --> src/doubly_linked_list.rs:63:12 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/doubly_linked_list.rs:82:12 [INFO] [stderr] | [INFO] [stderr] 82 | pub fn iter(&self) -> ListIterator { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_iter` [INFO] [stderr] --> src/doubly_linked_list.rs:86:12 [INFO] [stderr] | [INFO] [stderr] 86 | pub fn back_iter(self) -> ListIterator { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop` [INFO] [stderr] --> src/doubly_linked_list.rs:63:12 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/doubly_linked_list.rs:82:12 [INFO] [stderr] | [INFO] [stderr] 82 | pub fn iter(&self) -> ListIterator { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_iter` [INFO] [stderr] --> src/doubly_linked_list.rs:86:12 [INFO] [stderr] | [INFO] [stderr] 86 | pub fn back_iter(self) -> ListIterator { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.15s [INFO] running `"docker" "inspect" "f4517112fccbc50b19c872e1528a66f48c662586d318ebe2abe2d52ebb75fd3b"` [INFO] running `"docker" "rm" "-f" "f4517112fccbc50b19c872e1528a66f48c662586d318ebe2abe2d52ebb75fd3b"` [INFO] [stdout] f4517112fccbc50b19c872e1528a66f48c662586d318ebe2abe2d52ebb75fd3b [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 202bc9ad7715189a14964dfe0acf5ec6106d2a1ace17e2b53be102a2141b68a6 [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" "202bc9ad7715189a14964dfe0acf5ec6106d2a1ace17e2b53be102a2141b68a6"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/linked_list.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn new(v: String) -> 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_empty` [INFO] [stderr] --> src/linked_list.rs:48:12 [INFO] [stderr] | [INFO] [stderr] 48 | pub fn new_empty() -> TransactionLog { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `append` [INFO] [stderr] --> src/linked_list.rs:56:12 [INFO] [stderr] | [INFO] [stderr] 56 | pub fn append(&mut self, v: String) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop` [INFO] [stderr] --> src/linked_list.rs:66:12 [INFO] [stderr] | [INFO] [stderr] 66 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/doubly_linked_list.rs:22:8 [INFO] [stderr] | [INFO] [stderr] 22 | fn new(v: String) -> Rc> { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new_empty` [INFO] [stderr] --> src/doubly_linked_list.rs:41:12 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn new_empty() -> BetterTransactionLog { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `append` [INFO] [stderr] --> src/doubly_linked_list.rs:49:12 [INFO] [stderr] | [INFO] [stderr] 49 | pub fn append(&mut self, v: String) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop` [INFO] [stderr] --> src/doubly_linked_list.rs:63:12 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/doubly_linked_list.rs:82:12 [INFO] [stderr] | [INFO] [stderr] 82 | pub fn iter(&self) -> ListIterator { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_iter` [INFO] [stderr] --> src/doubly_linked_list.rs:86:12 [INFO] [stderr] | [INFO] [stderr] 86 | pub fn back_iter(self) -> ListIterator { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop` [INFO] [stderr] --> src/doubly_linked_list.rs:63:12 [INFO] [stderr] | [INFO] [stderr] 63 | pub fn pop(&mut self) -> Option { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `iter` [INFO] [stderr] --> src/doubly_linked_list.rs:82:12 [INFO] [stderr] | [INFO] [stderr] 82 | pub fn iter(&self) -> ListIterator { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `back_iter` [INFO] [stderr] --> src/doubly_linked_list.rs:86:12 [INFO] [stderr] | [INFO] [stderr] 86 | pub fn back_iter(self) -> ListIterator { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/data_structures_and_algorithms-6b27fbb418899c9e [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test linked_list::test_linked_list ... ok [INFO] [stderr] Doc-tests data-structures-and-algorithms [INFO] [stdout] test doubly_linked_list::test_doubly_linked_list ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "202bc9ad7715189a14964dfe0acf5ec6106d2a1ace17e2b53be102a2141b68a6"` [INFO] running `"docker" "rm" "-f" "202bc9ad7715189a14964dfe0acf5ec6106d2a1ace17e2b53be102a2141b68a6"` [INFO] [stdout] 202bc9ad7715189a14964dfe0acf5ec6106d2a1ace17e2b53be102a2141b68a6