[INFO] fetching crate tac-k-lib 0.3.3...
[INFO] testing tac-k-lib-0.3.3 against 1.90.0 for beta-1.91-3
[INFO] extracting crate tac-k-lib 0.3.3 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tac-k-lib 0.3.3
[INFO] finished tweaking crates.io crate tac-k-lib 0.3.3
[INFO] tweaked toml for crates.io crate tac-k-lib 0.3.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tac-k-lib 0.3.3 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmap2 v0.9.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8dcfadf6228ee87faf4e3b8cc284ac16c1204cc4e2a6ec29f7b5b89dbf2ec6b2
[INFO] running `Command { std: "docker" "start" "-a" "8dcfadf6228ee87faf4e3b8cc284ac16c1204cc4e2a6ec29f7b5b89dbf2ec6b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dcfadf6228ee87faf4e3b8cc284ac16c1204cc4e2a6ec29f7b5b89dbf2ec6b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dcfadf6228ee87faf4e3b8cc284ac16c1204cc4e2a6ec29f7b5b89dbf2ec6b2", kill_on_drop: false }`
[INFO] [stdout] 8dcfadf6228ee87faf4e3b8cc284ac16c1204cc4e2a6ec29f7b5b89dbf2ec6b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78d6abadf1d00fab2d769b8d38dd4d1f053f77027b1691ff8a694c00ccf9e324
[INFO] running `Command { std: "docker" "start" "-a" "78d6abadf1d00fab2d769b8d38dd4d1f053f77027b1691ff8a694c00ccf9e324", kill_on_drop: false }`
[INFO] [stderr]    Compiling memmap2 v0.9.8
[INFO] [stderr]    Compiling tac-k-lib v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:213:26
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let pattern256 = unsafe { _mm256_set1_epi8(separator as i8) };
[INFO] [stdout]     |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "78d6abadf1d00fab2d769b8d38dd4d1f053f77027b1691ff8a694c00ccf9e324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78d6abadf1d00fab2d769b8d38dd4d1f053f77027b1691ff8a694c00ccf9e324", kill_on_drop: false }`
[INFO] [stdout] 78d6abadf1d00fab2d769b8d38dd4d1f053f77027b1691ff8a694c00ccf9e324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dad9e4d4fac378789456daae6093fbb080350595db3883ea1b42ab7656cb463
[INFO] running `Command { std: "docker" "start" "-a" "8dad9e4d4fac378789456daae6093fbb080350595db3883ea1b42ab7656cb463", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:213:26
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let pattern256 = unsafe { _mm256_set1_epi8(separator as i8) };
[INFO] [stdout]     |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tac-k-lib v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:213:26
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let pattern256 = unsafe { _mm256_set1_epi8(separator as i8) };
[INFO] [stdout]     |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "8dad9e4d4fac378789456daae6093fbb080350595db3883ea1b42ab7656cb463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dad9e4d4fac378789456daae6093fbb080350595db3883ea1b42ab7656cb463", kill_on_drop: false }`
[INFO] [stdout] 8dad9e4d4fac378789456daae6093fbb080350595db3883ea1b42ab7656cb463
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8ae543e72a84c21af25ddddcb96427cb12583f4c510db9ca3108b106f3b4376b
[INFO] running `Command { std: "docker" "start" "-a" "8ae543e72a84c21af25ddddcb96427cb12583f4c510db9ca3108b106f3b4376b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stdout] running 1 test
[INFO] [stderr]    --> src/lib.rs:213:26
[INFO] [stderr]     |
[INFO] [stderr] 213 |         let pattern256 = unsafe { _mm256_set1_epi8(separator as i8) };
[INFO] [stderr]     |                          ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tac-k-lib` (lib) generated 1 warning
[INFO] [stderr] warning: `tac-k-lib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tac_k_lib-5e9e85b30de3c261)
[INFO] [stderr]    Doc-tests tac_k_lib
[INFO] [stdout] test tests::test_x86_simd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.51s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - reverse_file (line 31) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - reverse_file (line 31) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `tac_k`
[INFO] [stdout]  --> src/lib.rs:32:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tac_k::reverse_file;
[INFO] [stdout]   |     ^^^^^ use of unresolved module or unlinked crate `tac_k`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `tac_k`, use `cargo add tac_k` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - reverse_file (line 31)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "8ae543e72a84c21af25ddddcb96427cb12583f4c510db9ca3108b106f3b4376b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ae543e72a84c21af25ddddcb96427cb12583f4c510db9ca3108b106f3b4376b", kill_on_drop: false }`
[INFO] [stdout] 8ae543e72a84c21af25ddddcb96427cb12583f4c510db9ca3108b106f3b4376b