[INFO] updating cached repository https://github.com/CertainLach/XDP-Rust-Example
[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] 44b3c26ad2edb327dbcf53605d008e2b1d530574
[INFO] checking CertainLach/XDP-Rust-Example against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCertainLach%2FXDP-Rust-Example" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CertainLach/XDP-Rust-Example on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/CertainLach/XDP-Rust-Example
[INFO] finished tweaking git repo https://github.com/CertainLach/XDP-Rust-Example
[INFO] tweaked toml for git repo https://github.com/CertainLach/XDP-Rust-Example written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/CertainLach/XDP-Rust-Example already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 91aa63559eb91babf2d6cb923487d2062e1bedb3b9e9b9029248b858c7dbf7ad
[INFO] running `"docker" "start" "-a" "91aa63559eb91babf2d6cb923487d2062e1bedb3b9e9b9029248b858c7dbf7ad"`
[INFO] [stderr]     Checking xdp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: constant `len` should have an upper case name
[INFO] [stderr]   --> src/lib.rs:27:15
[INFO] [stderr]    |
[INFO] [stderr] 27 |         const len: usize = $line.len() + 2;
[INFO] [stderr]    |               ^^^ help: convert the identifier to upper case: `LEN`
[INFO] [stderr] ...
[INFO] [stderr] 44 |     traceln!("Hello from ebpf world! %p %i", ctx, 2 + 3);
[INFO] [stderr]    |     ----------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: constant `len` should have an upper case name
[INFO] [stderr]   --> src/lib.rs:27:15
[INFO] [stderr]    |
[INFO] [stderr] 27 |         const len: usize = $line.len() + 2;
[INFO] [stderr]    |               ^^^ help: convert the identifier to upper case: `LEN`
[INFO] [stderr] ...
[INFO] [stderr] 44 |     traceln!("Hello from ebpf world! %p %i", ctx, 2 + 3);
[INFO] [stderr]    |     ----------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "91aa63559eb91babf2d6cb923487d2062e1bedb3b9e9b9029248b858c7dbf7ad"`
[INFO] running `"docker" "rm" "-f" "91aa63559eb91babf2d6cb923487d2062e1bedb3b9e9b9029248b858c7dbf7ad"`
[INFO] [stdout] 91aa63559eb91babf2d6cb923487d2062e1bedb3b9e9b9029248b858c7dbf7ad