[INFO] fetching crate libnail 0.2.0... [INFO] checking libnail-0.2.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1 [INFO] extracting crate libnail 0.2.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate libnail 0.2.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded seq_io v0.3.2 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c06be8291ed5a8b93508b4e523b68a2a33f8b18da8c2d5895d9849b30627d2d5 [INFO] running `Command { std: "docker" "start" "-a" "c06be8291ed5a8b93508b4e523b68a2a33f8b18da8c2d5895d9849b30627d2d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c06be8291ed5a8b93508b4e523b68a2a33f8b18da8c2d5895d9849b30627d2d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c06be8291ed5a8b93508b4e523b68a2a33f8b18da8c2d5895d9849b30627d2d5", kill_on_drop: false }` [INFO] [stdout] c06be8291ed5a8b93508b4e523b68a2a33f8b18da8c2d5895d9849b30627d2d5 [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=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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9b120a507ef6880d7d9549dcff1002c373c79aa2dc164d198dea77cd920abebf [INFO] running `Command { std: "docker" "start" "-a" "9b120a507ef6880d7d9549dcff1002c373c79aa2dc164d198dea77cd920abebf", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Checking regex-syntax v0.8.4 [INFO] [stderr] Compiling anyhow v1.0.86 [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 scoped_threadpool v0.1.9 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Checking yansi v0.5.1 [INFO] [stderr] Checking rand_pcg v0.3.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Checking pretty_assertions v1.4.0 [INFO] [stderr] Compiling phf_generator v0.11.2 [INFO] [stderr] Compiling phf_macros v0.11.2 [INFO] [stderr] Checking seq_io v0.3.2 [INFO] [stderr] Checking phf v0.11.2 [INFO] [stderr] Checking regex-automata v0.4.7 [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 5.82s [INFO] running `Command { std: "docker" "inspect" "9b120a507ef6880d7d9549dcff1002c373c79aa2dc164d198dea77cd920abebf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b120a507ef6880d7d9549dcff1002c373c79aa2dc164d198dea77cd920abebf", kill_on_drop: false }` [INFO] [stdout] 9b120a507ef6880d7d9549dcff1002c373c79aa2dc164d198dea77cd920abebf [INFO] checking libnail-0.2.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1 [INFO] extracting crate libnail 0.2.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate libnail 0.2.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8707570a458657b7d088c3979a9fa072a5c1956204e4fd24b80b6cbc5b198556 [INFO] running `Command { std: "docker" "start" "-a" "8707570a458657b7d088c3979a9fa072a5c1956204e4fd24b80b6cbc5b198556", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8707570a458657b7d088c3979a9fa072a5c1956204e4fd24b80b6cbc5b198556", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8707570a458657b7d088c3979a9fa072a5c1956204e4fd24b80b6cbc5b198556", kill_on_drop: false }` [INFO] [stdout] 8707570a458657b7d088c3979a9fa072a5c1956204e4fd24b80b6cbc5b198556 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 463980b46d86e8db26d0dc0c29cf16d5acbc4e0f6391c588e4913bb8a061911c [INFO] running `Command { std: "docker" "start" "-a" "463980b46d86e8db26d0dc0c29cf16d5acbc4e0f6391c588e4913bb8a061911c", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Compiling anyhow v1.0.86 [INFO] [stderr] Checking regex-syntax v0.8.4 [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 diff v0.1.13 [INFO] [stderr] Checking yansi v0.5.1 [INFO] [stderr] Checking rand_pcg v0.3.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Checking pretty_assertions v1.4.0 [INFO] [stderr] Compiling phf_generator v0.11.2 [INFO] [stderr] Compiling phf_macros v0.11.2 [INFO] [stderr] Checking seq_io v0.3.2 [INFO] [stderr] Checking phf v0.11.2 [INFO] [stderr] Checking regex-automata v0.4.7 [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 4.38s [INFO] running `Command { std: "docker" "inspect" "463980b46d86e8db26d0dc0c29cf16d5acbc4e0f6391c588e4913bb8a061911c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "463980b46d86e8db26d0dc0c29cf16d5acbc4e0f6391c588e4913bb8a061911c", kill_on_drop: false }` [INFO] [stdout] 463980b46d86e8db26d0dc0c29cf16d5acbc4e0f6391c588e4913bb8a061911c