[INFO] fetching crate netmod-udp 0.2.0...
[INFO] checking netmod-udp-0.2.0 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate netmod-udp 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate netmod-udp 0.2.0 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netmod-udp 0.2.0
[INFO] finished tweaking crates.io crate netmod-udp 0.2.0
[INFO] tweaked toml for crates.io crate netmod-udp 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ratman-identity v0.6.2
[INFO] [stderr]   Downloaded ratman-netmod v0.5.1
[INFO] [stderr]   Downloaded task-notify v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49d6204073c1e5c7583d4a79f72aeeb00d4043601fd2ed0be66005b0f236ef2e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "49d6204073c1e5c7583d4a79f72aeeb00d4043601fd2ed0be66005b0f236ef2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49d6204073c1e5c7583d4a79f72aeeb00d4043601fd2ed0be66005b0f236ef2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49d6204073c1e5c7583d4a79f72aeeb00d4043601fd2ed0be66005b0f236ef2e", kill_on_drop: false }`
[INFO] [stdout] 49d6204073c1e5c7583d4a79f72aeeb00d4043601fd2ed0be66005b0f236ef2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1aa4dfa1f6afcfbe521fe7c122ff14935bb252db84abf16acb6f71451720c179
[INFO] running `Command { std: "docker" "start" "-a" "1aa4dfa1f6afcfbe521fe7c122ff14935bb252db84abf16acb6f71451720c179", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking task-notify v0.1.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking signal-hook v0.3.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking async-io v1.4.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-process v1.1.0
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking ratman-identity v0.6.2
[INFO] [stderr]     Checking twox-hash v1.6.0
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking postcard v0.4.3
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking conjoiner-engine v1.2.3
[INFO] [stderr]     Checking ratman-netmod v0.5.1
[INFO] [stderr]     Checking netmod-udp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.47s
[INFO] running `Command { std: "docker" "inspect" "1aa4dfa1f6afcfbe521fe7c122ff14935bb252db84abf16acb6f71451720c179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa4dfa1f6afcfbe521fe7c122ff14935bb252db84abf16acb6f71451720c179", kill_on_drop: false }`
[INFO] [stdout] 1aa4dfa1f6afcfbe521fe7c122ff14935bb252db84abf16acb6f71451720c179