[INFO] cloning repository https://github.com/AnibalRGC/bookbuilder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnibalRGC/bookbuilder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnibalRGC%2Fbookbuilder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnibalRGC%2Fbookbuilder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 900cc8cd1e5e4e8ccfab8d1728b239e96805699c
[INFO] checking AnibalRGC/bookbuilder against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnibalRGC%2Fbookbuilder" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnibalRGC/bookbuilder on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AnibalRGC/bookbuilder
[INFO] finished tweaking git repo https://github.com/AnibalRGC/bookbuilder
[INFO] tweaked toml for git repo https://github.com/AnibalRGC/bookbuilder written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AnibalRGC/bookbuilder 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v1.6.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.19
[INFO] [stderr]   Downloaded clap v4.0.12
[INFO] [stderr]   Downloaded regex-syntax v0.6.27
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.36.1
[INFO] [stderr]   Downloaded windows_i686_gnu v0.36.1
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.36.1
[INFO] [stderr]   Downloaded windows_i686_msvc v0.36.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.19
[INFO] [stderr]   Downloaded pcap v0.11.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.36.1
[INFO] [stderr]   Downloaded os_str_bytes v6.3.0
[INFO] [stderr]   Downloaded clap_lex v0.3.0
[INFO] [stderr]   Downloaded cc v1.0.73
[INFO] [stderr]   Downloaded errno-dragonfly v0.1.2
[INFO] [stderr]   Downloaded errno v0.2.8
[INFO] [stderr]   Downloaded libloading v0.6.7
[INFO] [stderr]   Downloaded windows-sys v0.36.1
[INFO] [stderr]   Downloaded pkg-config v0.3.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac104ddcf605e1d418344dcc7fae4219fe04a55d79a2b21f12950985f469db04
[INFO] running `Command { std: "docker" "start" "-a" "ac104ddcf605e1d418344dcc7fae4219fe04a55d79a2b21f12950985f469db04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac104ddcf605e1d418344dcc7fae4219fe04a55d79a2b21f12950985f469db04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac104ddcf605e1d418344dcc7fae4219fe04a55d79a2b21f12950985f469db04", kill_on_drop: false }`
[INFO] [stdout] ac104ddcf605e1d418344dcc7fae4219fe04a55d79a2b21f12950985f469db04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 199d61656ebc9e6507506ef59e27d4d632cd6dcd904bd5e65f4bf6b9944180d7
[INFO] running `Command { std: "docker" "start" "-a" "199d61656ebc9e6507506ef59e27d4d632cd6dcd904bd5e65f4bf6b9944180d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v4.0.12
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling pcap v0.11.0
[INFO] [stderr]     Checking bookbuilder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `msg_type` is never read
[INFO] [stdout]    --> src/messages.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 284 | pub struct Message {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 285 |     pub length: u16,
[INFO] [stdout] 286 |     pub msg_type: u8,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `msg_type` is never read
[INFO] [stdout]    --> src/messages.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 284 | pub struct Message {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 285 |     pub length: u16,
[INFO] [stdout] 286 |     pub msg_type: u8,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[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 4.06s
[INFO] running `Command { std: "docker" "inspect" "199d61656ebc9e6507506ef59e27d4d632cd6dcd904bd5e65f4bf6b9944180d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "199d61656ebc9e6507506ef59e27d4d632cd6dcd904bd5e65f4bf6b9944180d7", kill_on_drop: false }`
[INFO] [stdout] 199d61656ebc9e6507506ef59e27d4d632cd6dcd904bd5e65f4bf6b9944180d7