[INFO] fetching crate libnail 0.2.0...
[INFO] checking libnail-0.2.0 against master#0f6e1ae67854c3c44726e8376144c16b465fe7c6 for pr-129392
[INFO] extracting crate libnail 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate libnail 0.2.0 on toolchain 0f6e1ae67854c3c44726e8376144c16b465fe7c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libnail 0.2.0
[INFO] finished tweaking crates.io crate libnail 0.2.0
[INFO] tweaked toml for crates.io crate libnail 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 139 packages to latest compatible versions
[INFO] [stderr]       Adding aligned-vec v0.5.0 (latest: v0.6.1)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding cfg-expr v0.15.8 (latest: v0.16.0)
[INFO] [stderr]       Adding itertools v0.12.1 (latest: v0.13.0)
[INFO] [stderr]       Adding miniz_oxide v0.7.4 (latest: v0.8.0)
[INFO] [stderr]       Adding siphasher v0.3.11 (latest: v1.0.1)
[INFO] [stderr]       Adding system-deps v6.2.2 (latest: v7.0.2)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding yansi v0.5.1 (latest: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded buffer-redux v1.0.2
[INFO] [stderr]   Downloaded arg_enum_proc_macro v0.3.4
[INFO] [stderr]   Downloaded rand_pcg v0.3.1
[INFO] [stderr]   Downloaded gif v0.13.1
[INFO] [stderr]   Downloaded byteorder-lite v0.1.0
[INFO] [stderr]   Downloaded image-webp v0.1.3
[INFO] [stderr]   Downloaded imgref v1.10.1
[INFO] [stderr]   Downloaded av1-grain v0.2.3
[INFO] [stderr]   Downloaded png v0.17.13
[INFO] [stderr]   Downloaded bitstream-io v2.5.3
[INFO] [stderr]   Downloaded cfg-expr v0.15.8
[INFO] [stderr]   Downloaded libfuzzer-sys v0.4.7
[INFO] [stderr]   Downloaded system-deps v6.2.2
[INFO] [stderr]   Downloaded zune-jpeg v0.4.13
[INFO] [stderr]   Downloaded image v0.25.2
[INFO] [stderr]   Downloaded fdeflate v0.3.4
[INFO] [stderr]   Downloaded quick-error v2.0.1
[INFO] [stderr]   Downloaded exr v1.72.0
[INFO] [stderr]   Downloaded built v0.7.4
[INFO] [stderr]   Downloaded maybe-rayon v0.1.1
[INFO] [stderr]   Downloaded simd_helpers v0.1.0
[INFO] [stderr]   Downloaded target-lexicon v0.12.16
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[INFO] [stderr]   Downloaded avif-serialize v0.8.1
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[INFO] [stderr]   Downloaded num-derive v0.4.2
[INFO] [stderr]   Downloaded profiling-procmacros v1.0.15
[INFO] [stderr]   Downloaded profiling v1.0.15
[INFO] [stderr]   Downloaded aligned-vec v0.5.0
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[INFO] [stderr]   Downloaded tiff v0.9.1
[INFO] [stderr]   Downloaded rav1e v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43ddb6698b163a6e60f2c699a17108f996fb4ffb70fe2d01c74435e89684d53f
[INFO] running `Command { std: "docker" "start" "-a" "43ddb6698b163a6e60f2c699a17108f996fb4ffb70fe2d01c74435e89684d53f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43ddb6698b163a6e60f2c699a17108f996fb4ffb70fe2d01c74435e89684d53f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ddb6698b163a6e60f2c699a17108f996fb4ffb70fe2d01c74435e89684d53f", kill_on_drop: false }`
[INFO] [stdout] 43ddb6698b163a6e60f2c699a17108f996fb4ffb70fe2d01c74435e89684d53f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21f4d4bbef377ece7408b1b30d8b2c7b521886cecf06d4ab6601596f4a41bda7
[INFO] running `Command { std: "docker" "start" "-a" "21f4d4bbef377ece7408b1b30d8b2c7b521886cecf06d4ab6601596f4a41bda7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking buffer-redux v1.0.2
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking rand_pcg v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking seq_io v0.3.2
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking libnail v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/align/structs/anti_diagonal_bounds.rs:1569:9
[INFO] [stdout]      |
[INFO] [stdout] 1569 |         b1.ascii(None);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1569 |         let _ = b1.ascii(None);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/align/structs/anti_diagonal_bounds.rs:1570:9
[INFO] [stdout]      |
[INFO] [stdout] 1570 |         b2.ascii(None);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1570 |         let _ = b2.ascii(None);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/align/structs/anti_diagonal_bounds.rs:1573:9
[INFO] [stdout]      |
[INFO] [stdout] 1573 |         b1.ascii(None);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1573 |         let _ = b1.ascii(None);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.31s
[INFO] running `Command { std: "docker" "inspect" "21f4d4bbef377ece7408b1b30d8b2c7b521886cecf06d4ab6601596f4a41bda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21f4d4bbef377ece7408b1b30d8b2c7b521886cecf06d4ab6601596f4a41bda7", kill_on_drop: false }`
[INFO] [stdout] 21f4d4bbef377ece7408b1b30d8b2c7b521886cecf06d4ab6601596f4a41bda7