[INFO] cloning repository https://github.com/davidad/five-letters
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidad/five-letters" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidad%2Ffive-letters", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidad%2Ffive-letters'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2a1f60f2010e024e1a32007dcb1189c9a554fdd
[INFO] checking davidad/five-letters against try#15e8bc6907ab2b3623cb52acc726f4787458df64 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidad%2Ffive-letters" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidad/five-letters on toolchain 15e8bc6907ab2b3623cb52acc726f4787458df64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davidad/five-letters
[INFO] finished tweaking git repo https://github.com/davidad/five-letters
[INFO] tweaked toml for git repo https://github.com/davidad/five-letters written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/davidad/five-letters 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" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d1b1a1dc6765baaea30516f980c67a6a59c47fc8d3571376b261c2c28608e66
[INFO] running `Command { std: "docker" "start" "-a" "2d1b1a1dc6765baaea30516f980c67a6a59c47fc8d3571376b261c2c28608e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d1b1a1dc6765baaea30516f980c67a6a59c47fc8d3571376b261c2c28608e66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d1b1a1dc6765baaea30516f980c67a6a59c47fc8d3571376b261c2c28608e66", kill_on_drop: false }`
[INFO] [stdout] 2d1b1a1dc6765baaea30516f980c67a6a59c47fc8d3571376b261c2c28608e66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+15e8bc6907ab2b3623cb52acc726f4787458df64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff92cb5345ff19ee8f759f3880f2d45dbb11e780a0cbe94235256f8bd758a8bc
[INFO] running `Command { std: "docker" "start" "-a" "ff92cb5345ff19ee8f759f3880f2d45dbb11e780a0cbe94235256f8bd758a8bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling serde v1.0.142
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling libc v0.2.127
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[INFO] [stderr]     Checking cfg-if v1.0.0
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[INFO] [stderr]    Compiling rayon-core v1.9.3
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[INFO] [stderr]    Compiling serde_json v1.0.83
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[INFO] [stderr]     Checking five-letters v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&bitvec::array::BitArray<[u32; 1], bitvec::order::Msb0>` instead of cloning the inner type
[INFO] [stdout]   --> src/lib.rs:33:59
[INFO] [stdout]    |
[INFO] [stdout] 33 |     words.into_iter().zip(bits.iter()).unique_by(|(_,b)| b.clone()).unzip()
[INFO] [stdout]    |                                                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&bitvec::array::BitArray<[u32; 1], bitvec::order::Msb0>` instead of cloning the inner type
[INFO] [stdout]   --> src/lib.rs:33:59
[INFO] [stdout]    |
[INFO] [stdout] 33 |     words.into_iter().zip(bits.iter()).unique_by(|(_,b)| b.clone()).unzip()
[INFO] [stdout]    |                                                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.91s
[INFO] running `Command { std: "docker" "inspect" "ff92cb5345ff19ee8f759f3880f2d45dbb11e780a0cbe94235256f8bd758a8bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff92cb5345ff19ee8f759f3880f2d45dbb11e780a0cbe94235256f8bd758a8bc", kill_on_drop: false }`
[INFO] [stdout] ff92cb5345ff19ee8f759f3880f2d45dbb11e780a0cbe94235256f8bd758a8bc