[INFO] cloning repository https://github.com/nikita-skobov/libpnet-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nikita-skobov/libpnet-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Flibpnet-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Flibpnet-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d79a960d3ba6cb4d86bdfa78fc83cf275142f06
[INFO] checking nikita-skobov/libpnet-poc against try#ff4041081a39fb2e940a03a55f86a4ad0b37d26a for pr-80763
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikita-skobov%2Flibpnet-poc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikita-skobov/libpnet-poc on toolchain ff4041081a39fb2e940a03a55f86a4ad0b37d26a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff4041081a39fb2e940a03a55f86a4ad0b37d26a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nikita-skobov/libpnet-poc
[INFO] finished tweaking git repo https://github.com/nikita-skobov/libpnet-poc
[INFO] tweaked toml for git repo https://github.com/nikita-skobov/libpnet-poc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nikita-skobov/libpnet-poc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff4041081a39fb2e940a03a55f86a4ad0b37d26a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.93
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+ff4041081a39fb2e940a03a55f86a4ad0b37d26a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 103c17bb4d1ddb202d22a4011855717c6912f629d92ab58c5f5476bb5e3f24a6
[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" "103c17bb4d1ddb202d22a4011855717c6912f629d92ab58c5f5476bb5e3f24a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "103c17bb4d1ddb202d22a4011855717c6912f629d92ab58c5f5476bb5e3f24a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "103c17bb4d1ddb202d22a4011855717c6912f629d92ab58c5f5476bb5e3f24a6", kill_on_drop: false }`
[INFO] [stdout] 103c17bb4d1ddb202d22a4011855717c6912f629d92ab58c5f5476bb5e3f24a6
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+ff4041081a39fb2e940a03a55f86a4ad0b37d26a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c2bfb04cbd3b9e4815a2f2157602bfc0f1c0d7871b431077ee9ae6437352cbd
[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" "2c2bfb04cbd3b9e4815a2f2157602bfc0f1c0d7871b431077ee9ae6437352cbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling serde v1.0.93
[INFO] [stderr]    Compiling libpnet-poc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-syntax v0.6.7
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking pnet_sys v0.22.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]     Checking ipnetwork v0.14.0
[INFO] [stderr]     Checking pnet_datalink v0.22.0
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.22.0
[INFO] [stderr]    Compiling pnet_packet v0.22.0
[INFO] [stderr]     Checking pnet_transport v0.22.0
[INFO] [stderr]     Checking pnet v0.22.0
[INFO] [stdout] warning: unused imports: `ChannelType`, `Config`
[INFO] [stdout]  --> src/main.rs:1:46
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pnet::datalink::{self, NetworkInterface, Config, ChannelType};
[INFO] [stdout]   |                                              ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ChannelType`, `Config`
[INFO] [stdout]  --> src/main.rs:1:46
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pnet::datalink::{self, NetworkInterface, Config, ChannelType};
[INFO] [stdout]   |                                              ^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/main.rs:46:62
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(_) => panic!("packetdump: unhandled channel type: {}"),
[INFO] [stdout]    |                                                              ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(_) => panic!("packetdump: unhandled channel type: {}", ...),
[INFO] [stdout]    |                                                                 ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(_) => panic!("{}", "packetdump: unhandled channel type: {}"),
[INFO] [stdout]    |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/main.rs:46:62
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(_) => panic!("packetdump: unhandled channel type: {}"),
[INFO] [stdout]    |                                                              ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(panic_fmt)]` on by default
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in a future Rust edition
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(_) => panic!("packetdump: unhandled channel type: {}", ...),
[INFO] [stdout]    |                                                                 ^^^^^
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(_) => panic!("{}", "packetdump: unhandled channel type: {}"),
[INFO] [stdout]    |                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "2c2bfb04cbd3b9e4815a2f2157602bfc0f1c0d7871b431077ee9ae6437352cbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c2bfb04cbd3b9e4815a2f2157602bfc0f1c0d7871b431077ee9ae6437352cbd", kill_on_drop: false }`
[INFO] [stdout] 2c2bfb04cbd3b9e4815a2f2157602bfc0f1c0d7871b431077ee9ae6437352cbd