[INFO] cloning repository https://github.com/sjbeskur/fastarp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjbeskur/fastarp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjbeskur%2Ffastarp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjbeskur%2Ffastarp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 248ab7815e78df373dabe4eb19d3d0c030625b60
[INFO] checking sjbeskur/fastarp against try#cc4c4328b2b4da72bc61f8f5984292dd73740b5e for pr-112842
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjbeskur%2Ffastarp" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sjbeskur/fastarp on toolchain cc4c4328b2b4da72bc61f8f5984292dd73740b5e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cc4c4328b2b4da72bc61f8f5984292dd73740b5e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sjbeskur/fastarp
[INFO] finished tweaking git repo https://github.com/sjbeskur/fastarp
[INFO] tweaked toml for git repo https://github.com/sjbeskur/fastarp written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sjbeskur/fastarp 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" "+cc4c4328b2b4da72bc61f8f5984292dd73740b5e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+cc4c4328b2b4da72bc61f8f5984292dd73740b5e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cf9db4ca2e1bd4132246d6cbac5db1274d07f3474465e94608d5c1c66a3f1f2
[INFO] running `Command { std: "docker" "start" "-a" "0cf9db4ca2e1bd4132246d6cbac5db1274d07f3474465e94608d5c1c66a3f1f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cf9db4ca2e1bd4132246d6cbac5db1274d07f3474465e94608d5c1c66a3f1f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cf9db4ca2e1bd4132246d6cbac5db1274d07f3474465e94608d5c1c66a3f1f2", kill_on_drop: false }`
[INFO] [stdout] 0cf9db4ca2e1bd4132246d6cbac5db1274d07f3474465e94608d5c1c66a3f1f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+cc4c4328b2b4da72bc61f8f5984292dd73740b5e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96c8d973ce49bc8472050afb88cbb0e92fcbdcd62adfe02c31f4bd23421a7ae7
[INFO] running `Command { std: "docker" "start" "-a" "96c8d973ce49bc8472050afb88cbb0e92fcbdcd62adfe02c31f4bd23421a7ae7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]     Checking pnet_base v0.22.0
[INFO] [stderr]    Compiling standback v0.2.8
[INFO] [stderr]     Checking pnet_macros_support v0.25.0
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling pnet v0.25.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking pnet_sys v0.25.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]    Compiling time v0.2.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking ipnetwork v0.15.1
[INFO] [stderr]     Checking pnet_datalink v0.25.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.22.0
[INFO] [stderr]    Compiling pnet_packet v0.25.0
[INFO] [stderr] thread 'rustc' panicked at 'assertion failed: pos.get() <= self.position()', compiler/rustc_metadata/src/rmeta/encoder.rs:429:9
[INFO] [stderr] error: could not compile `pnet_packet` (lib)
[INFO] running `Command { std: "docker" "inspect" "96c8d973ce49bc8472050afb88cbb0e92fcbdcd62adfe02c31f4bd23421a7ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96c8d973ce49bc8472050afb88cbb0e92fcbdcd62adfe02c31f4bd23421a7ae7", kill_on_drop: false }`
[INFO] [stdout] 96c8d973ce49bc8472050afb88cbb0e92fcbdcd62adfe02c31f4bd23421a7ae7