[INFO] updating cached repository https://github.com/saik0/rust_boggle_solver
[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] 5d4602cdfe585c83c836f045adc675e23f9a6e37
[INFO] testing saik0/rust_boggle_solver against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsaik0%2Frust_boggle_solver" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/saik0/rust_boggle_solver 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/saik0/rust_boggle_solver
[INFO] finished tweaking git repo https://github.com/saik0/rust_boggle_solver
[INFO] tweaked toml for git repo https://github.com/saik0/rust_boggle_solver written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/saik0/rust_boggle_solver 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] b31a5877f88714345dc20d2680697ed1df040595fe321bb6787087c3988d1bdc
[INFO] running `"docker" "start" "-a" "b31a5877f88714345dc20d2680697ed1df040595fe321bb6787087c3988d1bdc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust_boggle_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/boggle_util.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         'a' ... 'z' => true,
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/boggle_util.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         'A' ... 'Z' => true,
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/boggle/mod.rs:38:33
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn any(&self, v: u8) -> Box<Iterator<Item=usize>>;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=usize>`
[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/boggle/mod.rs:39:49
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn neighbors(&self, i: usize, v: u8) -> Box<Iterator<Item=usize>>;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=usize>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/boggle/radix_board.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |             alpha = mem::uninitialized();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/trie.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |             mem::replace(&mut (self.children[first]), Some(Box::new(Trie::new())));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "b31a5877f88714345dc20d2680697ed1df040595fe321bb6787087c3988d1bdc"`
[INFO] running `"docker" "rm" "-f" "b31a5877f88714345dc20d2680697ed1df040595fe321bb6787087c3988d1bdc"`
[INFO] [stdout] b31a5877f88714345dc20d2680697ed1df040595fe321bb6787087c3988d1bdc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] e1981f4b02c0d7e6681639ff657a193346d5150ced338bb21b011ed35310f848
[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" "e1981f4b02c0d7e6681639ff657a193346d5150ced338bb21b011ed35310f848"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust_boggle_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/boggle_util.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         'a' ... 'z' => true,
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/boggle_util.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         'A' ... 'Z' => true,
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/boggle/mod.rs:38:33
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn any(&self, v: u8) -> Box<Iterator<Item=usize>>;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=usize>`
[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/boggle/mod.rs:39:49
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn neighbors(&self, i: usize, v: u8) -> Box<Iterator<Item=usize>>;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=usize>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/boggle/radix_board.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |             alpha = mem::uninitialized();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/trie.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |             mem::replace(&mut (self.children[first]), Some(Box::new(Trie::new())));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "e1981f4b02c0d7e6681639ff657a193346d5150ced338bb21b011ed35310f848"`
[INFO] running `"docker" "rm" "-f" "e1981f4b02c0d7e6681639ff657a193346d5150ced338bb21b011ed35310f848"`
[INFO] [stdout] e1981f4b02c0d7e6681639ff657a193346d5150ced338bb21b011ed35310f848
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 9f8d66d31b927f81148f1cc5e6ac42238e946f928c3f00218d2f9d8ac6deadc9
[INFO] running `"docker" "start" "-a" "9f8d66d31b927f81148f1cc5e6ac42238e946f928c3f00218d2f9d8ac6deadc9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/boggle_util.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         'a' ... 'z' => true,
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/boggle_util.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         'A' ... 'Z' => true,
[INFO] [stderr]    |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/boggle/mod.rs:38:33
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn any(&self, v: u8) -> Box<Iterator<Item=usize>>;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=usize>`
[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/boggle/mod.rs:39:49
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn neighbors(&self, i: usize, v: u8) -> Box<Iterator<Item=usize>>;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=usize>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/boggle/radix_board.rs:66:21
[INFO] [stderr]    |
[INFO] [stderr] 66 |             alpha = mem::uninitialized();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/trie.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |             mem::replace(&mut (self.children[first]), Some(Box::new(Trie::new())));
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_boggle_solver-03a5d235904e0b6e
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test trie::test::valid_words_are_inserted ... ok
[INFO] [stdout] test trie::test::is_case_insensitive ... ok
[INFO] [stdout] test bitset::bitset_32::test::can_iter ... ok
[INFO] [stdout] test bitset::bitset_32::test::format_is_correct ... ok
[INFO] [stdout] test bitset::bitset::test::can_add ... ok
[INFO] [stdout] test bitset::bitset::test::can_remove ... ok
[INFO] [stdout] test bitset::bitset_32::test::cardinality_is_correct ... ok
[INFO] [stdout] test bitset::bitset_32::test::can_remove ... ok
[INFO] [stdout] test trie::test::invalid_words_are_not_inserted ... ok
[INFO] [stdout] test bitset::bitset::test::len_is_correct ... ok
[INFO] [stdout] test bitset::bitset_32::test::can_add ... ok
[INFO] [stdout] test bitset::bitset::test::can_iter_indices ... ok
[INFO] [stdout] test bitset::bitset_32::test::can_iter_ones ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9f8d66d31b927f81148f1cc5e6ac42238e946f928c3f00218d2f9d8ac6deadc9"`
[INFO] running `"docker" "rm" "-f" "9f8d66d31b927f81148f1cc5e6ac42238e946f928c3f00218d2f9d8ac6deadc9"`
[INFO] [stdout] 9f8d66d31b927f81148f1cc5e6ac42238e946f928c3f00218d2f9d8ac6deadc9