[INFO] fetching crate packet-builder 0.7.0...
[INFO] checking packet-builder-0.7.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate packet-builder 0.7.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate packet-builder 0.7.0 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 crates.io crate packet-builder 0.7.0
[INFO] finished tweaking crates.io crate packet-builder 0.7.0
[INFO] tweaked toml for crates.io crate packet-builder 0.7.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate packet-builder 0.7.0 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 crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_transport v0.31.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.31.0
[INFO] [stderr]   Downloaded pnet v0.31.0
[INFO] [stderr]   Downloaded pnet_base v0.31.0
[INFO] [stderr]   Downloaded pnet_sys v0.31.0
[INFO] [stderr]   Downloaded pnet_macros v0.31.0
[INFO] [stderr]   Downloaded pnet_packet v0.31.0
[INFO] [stderr]   Downloaded ipnetwork v0.19.0
[INFO] [stderr]   Downloaded pnet_datalink v0.31.0
[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] 4e767e0e7bd11c7e13404e81a9524ad31cbacdcab065603f578fcb2c1ae5d94a
[INFO] running `Command { std: "docker" "start" "-a" "4e767e0e7bd11c7e13404e81a9524ad31cbacdcab065603f578fcb2c1ae5d94a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e767e0e7bd11c7e13404e81a9524ad31cbacdcab065603f578fcb2c1ae5d94a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e767e0e7bd11c7e13404e81a9524ad31cbacdcab065603f578fcb2c1ae5d94a", kill_on_drop: false }`
[INFO] [stdout] 4e767e0e7bd11c7e13404e81a9524ad31cbacdcab065603f578fcb2c1ae5d94a
[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] 5777c0c3a0d7873b2a3406e22767318cdc19c484fa068b807c95db25dc91c66a
[INFO] running `Command { std: "docker" "start" "-a" "5777c0c3a0d7873b2a3406e22767318cdc19c484fa068b807c95db25dc91c66a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]    Compiling serde v1.0.139
[INFO] [stderr]    Compiling pnet v0.31.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking pnet_sys v0.31.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]     Checking pnet_base v0.31.0
[INFO] [stderr]     Checking pnet_macros_support v0.31.0
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]     Checking ipnetwork v0.19.0
[INFO] [stderr]     Checking pnet_datalink v0.31.0
[INFO] [stderr]    Compiling pnet_macros v0.31.0
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]     Checking pnet_packet v0.31.0
[INFO] [stderr]     Checking pnet_transport v0.31.0
[INFO] [stderr]     Checking packet-builder v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.63s
[INFO] running `Command { std: "docker" "inspect" "5777c0c3a0d7873b2a3406e22767318cdc19c484fa068b807c95db25dc91c66a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5777c0c3a0d7873b2a3406e22767318cdc19c484fa068b807c95db25dc91c66a", kill_on_drop: false }`
[INFO] [stdout] 5777c0c3a0d7873b2a3406e22767318cdc19c484fa068b807c95db25dc91c66a