[INFO] cloning repository https://github.com/RustisLeague/rustis
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RustisLeague/rustis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustisLeague%2Frustis"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustisLeague%2Frustis'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5440206c1ca7efe191c8b7b5a162f0fa41c4cbcf
[INFO] checking RustisLeague/rustis against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustisLeague%2Frustis" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RustisLeague/rustis on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/RustisLeague/rustis
[INFO] finished tweaking git repo https://github.com/RustisLeague/rustis
[INFO] tweaked toml for git repo https://github.com/RustisLeague/rustis written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/RustisLeague/rustis already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] 7c6c37ae3e1674396c644125cad80d5fa40a4595afa6b819b5ac37b6af2856fa
[INFO] running `"docker" "start" "-a" "7c6c37ae3e1674396c644125cad80d5fa40a4595afa6b819b5ac37b6af2856fa"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking iovec v0.1.0
[INFO] [stderr]     Checking net2 v0.2.29
[INFO] [stderr]     Checking mio v0.6.9
[INFO] [stderr]     Checking rustis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `IResult`
[INFO] [stderr]  --> src/rustis/parse.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use nom::{IResult, digit};
[INFO] [stderr]   |           ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/rustis/db.rs:38:26
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     Some(x) => {
[INFO] [stderr]    |                          ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/rustis/db.rs:38:26
[INFO] [stderr]    |
[INFO] [stderr] 38 |                     Some(x) => {
[INFO] [stderr]    |                          ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/rustis/server.rs:74:29
[INFO] [stderr]    |
[INFO] [stderr] 74 |                         let mut hup = event.readiness().contains(UnixReady::hup());
[INFO] [stderr]    |                             ----^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/rustis/server.rs:74:29
[INFO] [stderr]    |
[INFO] [stderr] 74 |                         let mut hup = event.readiness().contains(UnixReady::hup());
[INFO] [stderr]    |                             ----^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `exp`
[INFO] [stderr]   --> src/rustis/db.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     exp:BinaryHeap<ExpireTime>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rustis/server.rs:79:29
[INFO] [stderr]    |
[INFO] [stderr] 79 | ...                   stream.read_to_string(buf);
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `exp`
[INFO] [stderr]   --> src/rustis/db.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     exp:BinaryHeap<ExpireTime>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/rustis/server.rs:79:29
[INFO] [stderr]    |
[INFO] [stderr] 79 | ...                   stream.read_to_string(buf);
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.51s
[INFO] running `"docker" "inspect" "7c6c37ae3e1674396c644125cad80d5fa40a4595afa6b819b5ac37b6af2856fa"`
[INFO] running `"docker" "rm" "-f" "7c6c37ae3e1674396c644125cad80d5fa40a4595afa6b819b5ac37b6af2856fa"`
[INFO] [stdout] 7c6c37ae3e1674396c644125cad80d5fa40a4595afa6b819b5ac37b6af2856fa