[INFO] cloning repository https://github.com/Mr-Helpful/scrabble.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mr-Helpful/scrabble.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMr-Helpful%2Fscrabble.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMr-Helpful%2Fscrabble.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb9662b2f6fb74bec5e1c6eed9181f118ed2fd63
[INFO] testing Mr-Helpful/scrabble.rs against 1.76.0 for beta-1.77-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMr-Helpful%2Fscrabble.rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mr-Helpful/scrabble.rs on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mr-Helpful/scrabble.rs
[INFO] finished tweaking git repo https://github.com/Mr-Helpful/scrabble.rs
[INFO] tweaked toml for git repo https://github.com/Mr-Helpful/scrabble.rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Mr-Helpful/scrabble.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.6.2
[INFO] [stderr]   Downloaded trees v0.4.2
[INFO] [stderr]   Downloaded weak-table v0.3.2
[INFO] [stderr]   Downloaded allwords v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d5387a48ac84b9e7a2c3feb6f9422d1f1e571776eb909f93908c721f19b462d
[INFO] running `Command { std: "docker" "start" "-a" "0d5387a48ac84b9e7a2c3feb6f9422d1f1e571776eb909f93908c721f19b462d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d5387a48ac84b9e7a2c3feb6f9422d1f1e571776eb909f93908c721f19b462d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5387a48ac84b9e7a2c3feb6f9422d1f1e571776eb909f93908c721f19b462d", kill_on_drop: false }`
[INFO] [stdout] 0d5387a48ac84b9e7a2c3feb6f9422d1f1e571776eb909f93908c721f19b462d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77b043177a63a75ce0cccbba9918f6d4afdeb9c29f76b50b9162e1e1663f95bb
[INFO] running `Command { std: "docker" "start" "-a" "77b043177a63a75ce0cccbba9918f6d4afdeb9c29f76b50b9162e1e1663f95bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling memchr v2.6.2
[INFO] [stderr]    Compiling weak-table v0.3.2
[INFO] [stderr]    Compiling allwords v0.1.2
[INFO] [stderr]    Compiling trees v0.4.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling scrabble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/dawg/ptrs.rs:68:20
[INFO] [stdout]    |
[INFO] [stdout] 68 |     self.0.as_ref().borrow()
[INFO] [stdout]    |                    ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Node` does not implement `Borrow`, so calling `borrow` on `&Node` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/dawg/ptrs.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     self.0.as_ref().borrow()
[INFO] [stdout]    |                    ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Node` does not implement `Borrow`, so calling `borrow` on `&Node` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.38s
[INFO] running `Command { std: "docker" "inspect" "77b043177a63a75ce0cccbba9918f6d4afdeb9c29f76b50b9162e1e1663f95bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77b043177a63a75ce0cccbba9918f6d4afdeb9c29f76b50b9162e1e1663f95bb", kill_on_drop: false }`
[INFO] [stdout] 77b043177a63a75ce0cccbba9918f6d4afdeb9c29f76b50b9162e1e1663f95bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ac9895c9320feef66be39bb2e3ff785da4b9bccc401c7aaf8381f0097b4397c
[INFO] running `Command { std: "docker" "start" "-a" "0ac9895c9320feef66be39bb2e3ff785da4b9bccc401c7aaf8381f0097b4397c", kill_on_drop: false }`
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/dawg/ptrs.rs:68:20
[INFO] [stdout]    |
[INFO] [stdout] 68 |     self.0.as_ref().borrow()
[INFO] [stdout]    |                    ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Node` does not implement `Borrow`, so calling `borrow` on `&Node` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/dawg/ptrs.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     self.0.as_ref().borrow()
[INFO] [stdout]    |                    ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Node` does not implement `Borrow`, so calling `borrow` on `&Node` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling scrabble v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/dawg/ptrs.rs:68:20
[INFO] [stdout]    |
[INFO] [stdout] 68 |     self.0.as_ref().borrow()
[INFO] [stdout]    |                    ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Node` does not implement `Borrow`, so calling `borrow` on `&Node` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/dawg/ptrs.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     self.0.as_ref().borrow()
[INFO] [stdout]    |                    ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Node` does not implement `Borrow`, so calling `borrow` on `&Node` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "0ac9895c9320feef66be39bb2e3ff785da4b9bccc401c7aaf8381f0097b4397c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ac9895c9320feef66be39bb2e3ff785da4b9bccc401c7aaf8381f0097b4397c", kill_on_drop: false }`
[INFO] [stdout] 0ac9895c9320feef66be39bb2e3ff785da4b9bccc401c7aaf8381f0097b4397c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eaa36ada7465118cf0c651e78733d27cc4491b46777984db33f401288f529e22
[INFO] running `Command { std: "docker" "start" "-a" "eaa36ada7465118cf0c651e78733d27cc4491b46777984db33f401288f529e22", kill_on_drop: false }`
[INFO] [stderr] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stderr]   --> src/dawg/ptrs.rs:68:20
[INFO] [stderr]    |
[INFO] [stderr] 68 |     self.0.as_ref().borrow()
[INFO] [stderr]    |                    ^^^^^^^^^ help: remove this redundant call
[INFO] [stderr]    |
[INFO] [stderr]    = note: the type `Node` does not implement `Borrow`, so calling `borrow` on `&Node` copies the reference, which does not do anything and can be removed
[INFO] [stderr]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stderr]   --> src/dawg/ptrs.rs:74:20
[INFO] [stderr]    |
[INFO] [stderr] 74 |     self.0.as_ref().borrow()
[INFO] [stderr]    |                    ^^^^^^^^^ help: remove this redundant call
[INFO] [stderr]    |
[INFO] [stderr]    = note: the type `Node` does not implement `Borrow`, so calling `borrow` on `&Node` copies the reference, which does not do anything and can be removed
[INFO] [stderr] 
[INFO] [stderr] warning: `scrabble` (lib) generated 2 warnings (run `cargo fix --lib -p scrabble` to apply 2 suggestions)
[INFO] [stderr] warning: `scrabble` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/scrabble-97b3e40431ad8fc2)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test trie_ptr::test::collection_tests::empty::is_leaf ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::char_group ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::empty ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::empty::is_empty ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::empty::len_0 ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::char_range_group ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::mixed_all ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::mixed_group ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::ranges ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::single_char ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::single_word ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::two_group ... ok
[INFO] [stdout] test trie_ptr::test::set_tests::has::empty ... ok
[INFO] [stdout] test trie_ptr::test::set_tests::has::char ... ok
[INFO] [stdout] test trie_ptr::test::collection_tests::word::wildcard ... ok
[INFO] [stdout] test trie_ptr::test::set_tests::has::nothing ... ok
[INFO] [stdout] test trie_ptr::test::set_tests::sub::word_sub ... ok
[INFO] [stdout] test trie_ptr::test::set_tests::sub::empty_sub ... ok
[INFO] [stdout] test trie_ptr::test::set_tests::add::has ... FAILED
[INFO] [stdout] test trie_ptr::test::set_tests::has::word ... FAILED
[INFO] [stdout] test trie_ptr::test::set_tests::sub::add_sub ... FAILED
[INFO] [stdout] test trie_ptr::test::set_tests::or::or_unit has been running for over 60 seconds
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/scrabble-97b3e40431ad8fc2` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "eaa36ada7465118cf0c651e78733d27cc4491b46777984db33f401288f529e22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaa36ada7465118cf0c651e78733d27cc4491b46777984db33f401288f529e22", kill_on_drop: false }`
[INFO] [stdout] eaa36ada7465118cf0c651e78733d27cc4491b46777984db33f401288f529e22
