[INFO] updating cached repository DRiKE/pmtud-hbh-tester
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DRiKE/pmtud-hbh-tester
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DRiKE/pmtud-hbh-tester" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/DRiKE/pmtud-hbh-tester"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/DRiKE/pmtud-hbh-tester'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DRiKE/pmtud-hbh-tester" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/DRiKE/pmtud-hbh-tester"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/DRiKE/pmtud-hbh-tester'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dfa6e24186ac1868a23fa48652ff792bbe236549
[INFO] sha for GitHub repo DRiKE/pmtud-hbh-tester: dfa6e24186ac1868a23fa48652ff792bbe236549
[INFO] validating manifest of DRiKE/pmtud-hbh-tester on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of DRiKE/pmtud-hbh-tester on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing DRiKE/pmtud-hbh-tester
[INFO] finished frobbing DRiKE/pmtud-hbh-tester
[INFO] frobbed toml for DRiKE/pmtud-hbh-tester written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/DRiKE/pmtud-hbh-tester/Cargo.toml
[INFO] started frobbing DRiKE/pmtud-hbh-tester
[INFO] finished frobbing DRiKE/pmtud-hbh-tester
[INFO] frobbed toml for DRiKE/pmtud-hbh-tester written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/DRiKE/pmtud-hbh-tester/Cargo.toml
[INFO] crate DRiKE/pmtud-hbh-tester already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking DRiKE/pmtud-hbh-tester against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-6/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/DRiKE/pmtud-hbh-tester:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4a246e774b4cf63bb6b11a7b316e18837f7ed05bfed578c27b4dbf9049c9a7ca
[INFO] running `"docker" "start" "-a" "4a246e774b4cf63bb6b11a7b316e18837f7ed05bfed578c27b4dbf9049c9a7ca"`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking pcap v0.7.0
[INFO] [stderr]     Checking ipnetwork v0.14.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.13
[INFO] [stderr]    Compiling pnetlink v0.0.3 (https://github.com/polachok/pnetlink#d5af12a6)
[INFO] [stderr]     Checking pnet_datalink v0.22.0
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]     Checking pnet v0.22.0
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.18
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking pmtud-hbh-tester v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `unset_r_flag`
[INFO] [stderr]    --> src/main.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn unset_r_flag(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unset_r_flag`
[INFO] [stderr]    --> src/main.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn unset_r_flag(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.96s
[INFO] running `"docker" "inspect" "4a246e774b4cf63bb6b11a7b316e18837f7ed05bfed578c27b4dbf9049c9a7ca"`
[INFO] running `"docker" "rm" "-f" "4a246e774b4cf63bb6b11a7b316e18837f7ed05bfed578c27b4dbf9049c9a7ca"`
[INFO] [stdout] 4a246e774b4cf63bb6b11a7b316e18837f7ed05bfed578c27b4dbf9049c9a7ca