[INFO] crate rs_trie 0.1.0 is already in cache
[INFO] testing rs_trie-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate rs_trie 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rs_trie 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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-10/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" "+beta-2020-06-03" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 299e7db7026818b4de6a0eda7134985a0606d63217d09a45c151e88ed7a49436
[INFO] running `"docker" "start" "-a" "299e7db7026818b4de6a0eda7134985a0606d63217d09a45c151e88ed7a49436"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling 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 0.77s
[INFO] running `"docker" "inspect" "299e7db7026818b4de6a0eda7134985a0606d63217d09a45c151e88ed7a49436"`
[INFO] running `"docker" "rm" "-f" "299e7db7026818b4de6a0eda7134985a0606d63217d09a45c151e88ed7a49436"`
[INFO] [stdout] 299e7db7026818b4de6a0eda7134985a0606d63217d09a45c151e88ed7a49436
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dec9d2fc8f1e19a9fde6b29dc4247e79fb5af87a9fdd5fa7fed6bfb3cd024567
[INFO] running `"docker" "start" "-a" "dec9d2fc8f1e19a9fde6b29dc4247e79fb5af87a9fdd5fa7fed6bfb3cd024567"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rs_trie v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "dec9d2fc8f1e19a9fde6b29dc4247e79fb5af87a9fdd5fa7fed6bfb3cd024567"`
[INFO] running `"docker" "rm" "-f" "dec9d2fc8f1e19a9fde6b29dc4247e79fb5af87a9fdd5fa7fed6bfb3cd024567"`
[INFO] [stdout] dec9d2fc8f1e19a9fde6b29dc4247e79fb5af87a9fdd5fa7fed6bfb3cd024567
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e507b8fdfab356055843763b1237ff8792d0aa0987a82ee904e0d3435d30f336
[INFO] running `"docker" "start" "-a" "e507b8fdfab356055843763b1237ff8792d0aa0987a82ee904e0d3435d30f336"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rs_trie-4a2022af5231ba5a
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::run_tests ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e507b8fdfab356055843763b1237ff8792d0aa0987a82ee904e0d3435d30f336"`
[INFO] running `"docker" "rm" "-f" "e507b8fdfab356055843763b1237ff8792d0aa0987a82ee904e0d3435d30f336"`
[INFO] [stdout] e507b8fdfab356055843763b1237ff8792d0aa0987a82ee904e0d3435d30f336