[INFO] updating cached repository https://github.com/noname007/leetcode-rust
[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] 0cd921992f6a749f136f368ebc88bf94626964ba
[INFO] testing noname007/leetcode-rust against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoname007%2Fleetcode-rust" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/noname007/leetcode-rust on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/noname007/leetcode-rust
[INFO] finished tweaking git repo https://github.com/noname007/leetcode-rust
[INFO] tweaked toml for git repo https://github.com/noname007/leetcode-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/noname007/leetcode-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.44.0" "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] f0a274942a7088cf09c8a4a824a5931681df9f3ad41cfb43e77efb41116a0529
[INFO] running `"docker" "start" "-a" "f0a274942a7088cf09c8a4a824a5931681df9f3ad41cfb43e77efb41116a0529"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust-leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/leetcode7.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let i = 100_i8;
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reverse`
[INFO] [stderr]   --> src/leetcode7.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn reverse(x: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "f0a274942a7088cf09c8a4a824a5931681df9f3ad41cfb43e77efb41116a0529"`
[INFO] running `"docker" "rm" "-f" "f0a274942a7088cf09c8a4a824a5931681df9f3ad41cfb43e77efb41116a0529"`
[INFO] [stdout] f0a274942a7088cf09c8a4a824a5931681df9f3ad41cfb43e77efb41116a0529
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.44.0" "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] e849f68f973b6035c981c2b233a7d1ad7138b33c799024b58ae3a2c5ab6db3c1
[INFO] running `"docker" "start" "-a" "e849f68f973b6035c981c2b233a7d1ad7138b33c799024b58ae3a2c5ab6db3c1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rust-leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/leetcode7.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let i = 100_i8;
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reverse`
[INFO] [stderr]   --> src/leetcode7.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn reverse(x: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "e849f68f973b6035c981c2b233a7d1ad7138b33c799024b58ae3a2c5ab6db3c1"`
[INFO] running `"docker" "rm" "-f" "e849f68f973b6035c981c2b233a7d1ad7138b33c799024b58ae3a2c5ab6db3c1"`
[INFO] [stdout] e849f68f973b6035c981c2b233a7d1ad7138b33c799024b58ae3a2c5ab6db3c1
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.44.0" "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] ce263f8dcf7db6a742d36c81fa6c41d7651f4e12c6821c18faa499e45aa51618
[INFO] running `"docker" "start" "-a" "ce263f8dcf7db6a742d36c81fa6c41d7651f4e12c6821c18faa499e45aa51618"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/leetcode7.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let i = 100_i8;
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `reverse`
[INFO] [stderr]   --> src/leetcode7.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn reverse(x: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_leetcode-c11342d3cb51a56a
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ce263f8dcf7db6a742d36c81fa6c41d7651f4e12c6821c18faa499e45aa51618"`
[INFO] running `"docker" "rm" "-f" "ce263f8dcf7db6a742d36c81fa6c41d7651f4e12c6821c18faa499e45aa51618"`
[INFO] [stdout] ce263f8dcf7db6a742d36c81fa6c41d7651f4e12c6821c18faa499e45aa51618