[INFO] crate rs_trie 0.1.0 is already in cache
[INFO] checking rs_trie-0.1.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate rs_trie 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate rs_trie 0.1.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rs_trie 0.1.0
[INFO] finished tweaking crates.io crate rs_trie 0.1.0
[INFO] tweaked toml for crates.io crate rs_trie 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate rs_trie 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 2a2eb6dbf59c4b0508a6811419f70fef34d1d8d43ed5b52df7a96fca349d2beb
[INFO] running `"docker" "start" "-a" "2a2eb6dbf59c4b0508a6811419f70fef34d1d8d43ed5b52df7a96fca349d2beb"`
[INFO] [stderr]     Checking rs_trie v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: struct is never constructed: `TrieNode`
[INFO] [stderr]   --> src/main.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct TrieNode {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `trie_contains`
[INFO] [stderr]   --> src/main.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn trie_contains(t: &mut LinkedList<TrieNode>, c: char) -> Option<&mut TrieNode> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_if_in_trie`
[INFO] [stderr]   --> src/main.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn check_if_in_trie(t: &mut LinkedList<TrieNode>, s: &str) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `insert_into_trie`
[INFO] [stderr]   --> src/main.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn insert_into_trie(mut t: &mut LinkedList<TrieNode>, s: &str) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "2a2eb6dbf59c4b0508a6811419f70fef34d1d8d43ed5b52df7a96fca349d2beb"`
[INFO] running `"docker" "rm" "-f" "2a2eb6dbf59c4b0508a6811419f70fef34d1d8d43ed5b52df7a96fca349d2beb"`
[INFO] [stdout] 2a2eb6dbf59c4b0508a6811419f70fef34d1d8d43ed5b52df7a96fca349d2beb