[INFO] fetching crate inputx-ngram 1.4.0...
[INFO] testing inputx-ngram-1.4.0 against 1.97.0-beta.6 for beta-1.98-1
[INFO] extracting crate inputx-ngram 1.4.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate inputx-ngram 1.4.0
[INFO] finished tweaking crates.io crate inputx-ngram 1.4.0
[INFO] tweaked toml for crates.io crate inputx-ngram 1.4.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate inputx-ngram 1.4.0 on toolchain 1.97.0-beta.6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate inputx-ngram 1.4.0 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" "+1.97.0-beta.6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inputx-fsa v1.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd
[INFO] running `Command { std: "docker" "start" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.20.0
[INFO] [stderr]    Compiling inputx-fsa v1.4.0
[INFO] [stderr]    Compiling memmap2 v0.9.10
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling inputx-ngram v1.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling inputx-ngram v1.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/inputx_ngram-7e269e12fed07fa0)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::encode_ctx_joins_with_unit_separator ... ok
[INFO] [stdout] test tests::header_round_trip ... ok
[INFO] [stdout] test tests::header_size_constants ... ok
[INFO] [stdout] test tests::triplet_round_trip_preserves_fields ... ok
[INFO] [stdout] test tests::header_rejects_wrong_magic ... ok
[INFO] [stdout] test tests::sha256_mismatch_rejected ... ok
[INFO] [stdout] test tests::duplicate_ctx_next_pair_deduped ... ok
[INFO] [stdout] test tests::bigram_round_trip_recovers_log_prob ... ok
[INFO] [stdout] test tests::top_k_sorted_desc_with_lex_tiebreaker ... ok
[INFO] [stdout] test tests::trigram_max_n_3_round_trip ... ok
[INFO] [stdout] test tests::unsupported_max_n_rejected ... ok
[INFO] [stdout] test tests::two_builds_same_input_produce_identical_sha256 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests inputx_ngram
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 27) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 27) stdout ----
[INFO] [stdout] error[E0277]: `?` couldn't convert the error: `OpenError: std::error::Error` is not satisfied
[INFO] [stdout]   --> src/lib.rs:31:44
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_27_0() -> core::result::Result<(), impl core::fmt::Debug> {
[INFO] [stdout]    |                                                                            ----------------------------------------------- required `OpenError: std::error::Error` because of this
[INFO] [stdout] ...
[INFO] [stdout] 31 | let table = NgramTable::open("bigrams.ngm")?;
[INFO] [stdout]    |             -------------------------------^ the trait `std::error::Error` is not implemented for `OpenError`
[INFO] [stdout]    |             |
[INFO] [stdout]    |             this has type `Result<_, OpenError>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]    = note: required for `Box<dyn std::error::Error>` to implement `From<OpenError>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 27)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.21s; merged doctests compilation took 0.07s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd", kill_on_drop: false }`
[INFO] [stdout] db9a13fe850abbc0832283a9b6f877fbe276f2d9bcd15b0df94264f25e64eafd
