[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#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnibalRGC%2Fbookbuilder" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnibalRGC/bookbuilder on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v4.0.12
[INFO] [stderr]   Downloaded libc v0.2.135
[INFO] [stderr]   Downloaded pcap v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09c288e3d3140531e9abd9cda56bcbbf8057d2fec911162dde33ba6b2f088036
[INFO] running `Command { std: "docker" "start" "-a" "09c288e3d3140531e9abd9cda56bcbbf8057d2fec911162dde33ba6b2f088036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09c288e3d3140531e9abd9cda56bcbbf8057d2fec911162dde33ba6b2f088036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09c288e3d3140531e9abd9cda56bcbbf8057d2fec911162dde33ba6b2f088036", kill_on_drop: false }`
[INFO] [stdout] 09c288e3d3140531e9abd9cda56bcbbf8057d2fec911162dde33ba6b2f088036
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca4a367fafafc3172732d9e0133043c9824b69866464b6a5614f0bd364d140e5
[INFO] running `Command { std: "docker" "start" "-a" "ca4a367fafafc3172732d9e0133043c9824b69866464b6a5614f0bd364d140e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[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 atty v0.2.14
[INFO] [stderr]     Checking errno v0.2.8
[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 8.23s
[INFO] running `Command { std: "docker" "inspect" "ca4a367fafafc3172732d9e0133043c9824b69866464b6a5614f0bd364d140e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca4a367fafafc3172732d9e0133043c9824b69866464b6a5614f0bd364d140e5", kill_on_drop: false }`
[INFO] [stdout] ca4a367fafafc3172732d9e0133043c9824b69866464b6a5614f0bd364d140e5
[INFO] checking AnibalRGC/bookbuilder against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnibalRGC%2Fbookbuilder" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AnibalRGC/bookbuilder on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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-1-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 240904d52efbfdbe4fd88dd4a7655503957b000ba2bf4d1e0215c7870c909fbc
[INFO] running `Command { std: "docker" "start" "-a" "240904d52efbfdbe4fd88dd4a7655503957b000ba2bf4d1e0215c7870c909fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "240904d52efbfdbe4fd88dd4a7655503957b000ba2bf4d1e0215c7870c909fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240904d52efbfdbe4fd88dd4a7655503957b000ba2bf4d1e0215c7870c909fbc", kill_on_drop: false }`
[INFO] [stdout] 240904d52efbfdbe4fd88dd4a7655503957b000ba2bf4d1e0215c7870c909fbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 269a8e11c3343f42f3775dbda0a1b6b9c700e512a5f90d4750f46231c3d632be
[INFO] running `Command { std: "docker" "start" "-a" "269a8e11c3343f42f3775dbda0a1b6b9c700e512a5f90d4750f46231c3d632be", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[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: 1 warning emitted
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.24s
[INFO] running `Command { std: "docker" "inspect" "269a8e11c3343f42f3775dbda0a1b6b9c700e512a5f90d4750f46231c3d632be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "269a8e11c3343f42f3775dbda0a1b6b9c700e512a5f90d4750f46231c3d632be", kill_on_drop: false }`
[INFO] [stdout] 269a8e11c3343f42f3775dbda0a1b6b9c700e512a5f90d4750f46231c3d632be