[INFO] cloning repository https://github.com/zkxs/nucleotide-subsequence
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zkxs/nucleotide-subsequence" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzkxs%2Fnucleotide-subsequence", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzkxs%2Fnucleotide-subsequence'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f513914db2469ac6b8d472257b829abb61b570a
[INFO] checking zkxs/nucleotide-subsequence against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzkxs%2Fnucleotide-subsequence" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zkxs/nucleotide-subsequence 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 git repo https://github.com/zkxs/nucleotide-subsequence
[INFO] finished tweaking git repo https://github.com/zkxs/nucleotide-subsequence
[INFO] tweaked toml for git repo https://github.com/zkxs/nucleotide-subsequence written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zkxs/nucleotide-subsequence 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 482c0950ca49e92c78cf5e7401609a67982ad8c305684f0a28abb383457e69b6
[INFO] running `Command { std: "docker" "start" "-a" "482c0950ca49e92c78cf5e7401609a67982ad8c305684f0a28abb383457e69b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "482c0950ca49e92c78cf5e7401609a67982ad8c305684f0a28abb383457e69b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "482c0950ca49e92c78cf5e7401609a67982ad8c305684f0a28abb383457e69b6", kill_on_drop: false }`
[INFO] [stdout] 482c0950ca49e92c78cf5e7401609a67982ad8c305684f0a28abb383457e69b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 295f0dcc6df2c9575a65562ff0a8d9498a35c47406a77264af03f9af1fba6350
[INFO] running `Command { std: "docker" "start" "-a" "295f0dcc6df2c9575a65562ff0a8d9498a35c47406a77264af03f9af1fba6350", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking nucleotide-subsequence v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/main.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |             mem::forget(slice);
[INFO] [stdout]    |             ^^^^^^^^^^^^-----^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         argument has type `&[u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forgetting_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 99 -             mem::forget(slice);
[INFO] [stdout] 99 +             let _ = slice;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::forget` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/main.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |             mem::forget(slice);
[INFO] [stdout]    |             ^^^^^^^^^^^^-----^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         argument has type `&[u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(forgetting_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 99 -             mem::forget(slice);
[INFO] [stdout] 99 +             let _ = slice;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.43s
[INFO] running `Command { std: "docker" "inspect" "295f0dcc6df2c9575a65562ff0a8d9498a35c47406a77264af03f9af1fba6350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "295f0dcc6df2c9575a65562ff0a8d9498a35c47406a77264af03f9af1fba6350", kill_on_drop: false }`
[INFO] [stdout] 295f0dcc6df2c9575a65562ff0a8d9498a35c47406a77264af03f9af1fba6350