[INFO] updating cached repository https://github.com/Krakaw/mac-monitor
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 033ece3c120ba6b0d161aa2fb50e94d14d4ccebf
[INFO] checking Krakaw/mac-monitor against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKrakaw%2Fmac-monitor" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Krakaw/mac-monitor on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Krakaw/mac-monitor
[INFO] finished tweaking git repo https://github.com/Krakaw/mac-monitor
[INFO] tweaked toml for git repo https://github.com/Krakaw/mac-monitor written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Krakaw/mac-monitor already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 89f6f16585385e74691fafe680abee1f6e41901319f5daba8308aacf55ea89f8
[INFO] running `"docker" "start" "-a" "89f6f16585385e74691fafe680abee1f6e41901319f5daba8308aacf55ea89f8"`
[INFO] [stderr]    Compiling syn v0.15.37
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[INFO] [stderr]     Checking serde v1.0.94
[INFO] [stderr]    Compiling pnet_packet v0.22.0
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[INFO] [stderr]     Checking mac-notify v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/utils/details/mac_lookup.rs:7:127
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn lookup_mac(addresses: Vec<MacAddr>, stored_vendors: &HashMap<MacAddr, String>) -> Result<HashMap<MacAddr, String>, Box<Error>> {
[INFO] [stderr]   |                                                                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils/network/arp.rs:26:72
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn fetch_macs(&self) -> Result<HashMap<MacAddr, Ipv4Addr>, Box<Error>> {
[INFO] [stderr]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/utils/details/mac_lookup.rs:7:127
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn lookup_mac(addresses: Vec<MacAddr>, stored_vendors: &HashMap<MacAddr, String>) -> Result<HashMap<MacAddr, String>, Box<Error>> {
[INFO] [stderr]   |                                                                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils/network/arp.rs:26:72
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn fetch_macs(&self) -> Result<HashMap<MacAddr, Ipv4Addr>, Box<Error>> {
[INFO] [stderr]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 00s
[INFO] running `"docker" "inspect" "89f6f16585385e74691fafe680abee1f6e41901319f5daba8308aacf55ea89f8"`
[INFO] running `"docker" "rm" "-f" "89f6f16585385e74691fafe680abee1f6e41901319f5daba8308aacf55ea89f8"`
[INFO] [stdout] 89f6f16585385e74691fafe680abee1f6e41901319f5daba8308aacf55ea89f8