[INFO] cloning repository https://github.com/lilydjwg/drop-serverhello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lilydjwg/drop-serverhello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flilydjwg%2Fdrop-serverhello", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flilydjwg%2Fdrop-serverhello'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01478a74c8c106a4afb4ecaee03c3c4618908448
[INFO] checking lilydjwg/drop-serverhello against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flilydjwg%2Fdrop-serverhello" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lilydjwg/drop-serverhello 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/lilydjwg/drop-serverhello
[INFO] finished tweaking git repo https://github.com/lilydjwg/drop-serverhello
[INFO] tweaked toml for git repo https://github.com/lilydjwg/drop-serverhello written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lilydjwg/drop-serverhello 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]     Updating git repository `https://github.com/lilydjwg/libnetfilter_queue.git`
[INFO] [stderr]      Locking 1 package
[INFO] [stderr]       Adding netfilter_queue v0.2.2 (https://github.com/lilydjwg/libnetfilter_queue.git#4fb103db)
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusticata-macros v3.1.0
[INFO] [stderr]   Downloaded errno-dragonfly v0.1.1
[INFO] [stderr]   Downloaded errno v0.2.7
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef8c14f0fbf84412f350a0233ceb9d840d754b0f3c765f2b0cc31244f1efcf92
[INFO] running `Command { std: "docker" "start" "-a" "ef8c14f0fbf84412f350a0233ceb9d840d754b0f3c765f2b0cc31244f1efcf92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef8c14f0fbf84412f350a0233ceb9d840d754b0f3c765f2b0cc31244f1efcf92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef8c14f0fbf84412f350a0233ceb9d840d754b0f3c765f2b0cc31244f1efcf92", kill_on_drop: false }`
[INFO] [stdout] ef8c14f0fbf84412f350a0233ceb9d840d754b0f3c765f2b0cc31244f1efcf92
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83e488fed843fecd1bcf3350ae0765fadd99e3520f4567fcbd679a2641848da3
[INFO] running `Command { std: "docker" "start" "-a" "83e488fed843fecd1bcf3350ae0765fadd99e3520f4567fcbd679a2641848da3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking pnet_base v0.28.0
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking pnet_macros_support v0.28.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking netfilter_queue v0.2.2 (https://github.com/lilydjwg/libnetfilter_queue.git#4fb103db)
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling tls-parser v0.10.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]     Checking rusticata-macros v3.1.0
[INFO] [stderr]    Compiling nom-derive v0.7.2
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pnet_packet v0.28.0
[INFO] [stderr]     Checking drop-serverhello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "83e488fed843fecd1bcf3350ae0765fadd99e3520f4567fcbd679a2641848da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83e488fed843fecd1bcf3350ae0765fadd99e3520f4567fcbd679a2641848da3", kill_on_drop: false }`
[INFO] [stdout] 83e488fed843fecd1bcf3350ae0765fadd99e3520f4567fcbd679a2641848da3
[INFO] checking lilydjwg/drop-serverhello against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flilydjwg%2Fdrop-serverhello" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lilydjwg/drop-serverhello on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lilydjwg/drop-serverhello
[INFO] finished tweaking git repo https://github.com/lilydjwg/drop-serverhello
[INFO] tweaked toml for git repo https://github.com/lilydjwg/drop-serverhello written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lilydjwg/drop-serverhello 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/lilydjwg/libnetfilter_queue.git`
[INFO] [stderr]      Locking 1 package
[INFO] [stderr]       Adding netfilter_queue v0.2.2 (https://github.com/lilydjwg/libnetfilter_queue.git#4fb103db)
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01b5afd3cd026ce66b771d210bc445a4d40bb622bef3898c8d84ee7d6006cb5c
[INFO] running `Command { std: "docker" "start" "-a" "01b5afd3cd026ce66b771d210bc445a4d40bb622bef3898c8d84ee7d6006cb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01b5afd3cd026ce66b771d210bc445a4d40bb622bef3898c8d84ee7d6006cb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01b5afd3cd026ce66b771d210bc445a4d40bb622bef3898c8d84ee7d6006cb5c", kill_on_drop: false }`
[INFO] [stdout] 01b5afd3cd026ce66b771d210bc445a4d40bb622bef3898c8d84ee7d6006cb5c
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc6a4118c8bfbc105d5e9e65d11f6bb1eaad6446cc6e3e1e6464ba3477757e8f
[INFO] running `Command { std: "docker" "start" "-a" "fc6a4118c8bfbc105d5e9e65d11f6bb1eaad6446cc6e3e1e6464ba3477757e8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]     Checking pnet_base v0.28.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking pnet_macros_support v0.28.0
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking netfilter_queue v0.2.2 (https://github.com/lilydjwg/libnetfilter_queue.git#4fb103db)
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling tls-parser v0.10.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking rusticata-macros v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling pnet_macros v0.28.0
[INFO] [stderr]    Compiling nom-derive v0.7.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pnet_packet v0.28.0
[INFO] [stderr]     Checking drop-serverhello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.48s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "fc6a4118c8bfbc105d5e9e65d11f6bb1eaad6446cc6e3e1e6464ba3477757e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc6a4118c8bfbc105d5e9e65d11f6bb1eaad6446cc6e3e1e6464ba3477757e8f", kill_on_drop: false }`
[INFO] [stdout] fc6a4118c8bfbc105d5e9e65d11f6bb1eaad6446cc6e3e1e6464ba3477757e8f