[INFO] updating cached repository https://github.com/ELCHILEN0/memcached
[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] f0291bdddd050b2cb46014e1364a435f48ed7c50
[INFO] checking ELCHILEN0/memcached against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FELCHILEN0%2Fmemcached" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ELCHILEN0/memcached 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/ELCHILEN0/memcached
[INFO] finished tweaking git repo https://github.com/ELCHILEN0/memcached
[INFO] tweaked toml for git repo https://github.com/ELCHILEN0/memcached written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ELCHILEN0/memcached 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 012ea80e8cea485a85b2f3c1f56665bb6c8d745595477b7f6faa9801b2e3c64b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "012ea80e8cea485a85b2f3c1f56665bb6c8d745595477b7f6faa9801b2e3c64b"`
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking memcached v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/cache/cache.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |             try!(self.evict_next());
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `packet::MemPacket`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use packet::MemPacket;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Clock`, `LRU`
[INFO] [stderr]   --> src/main.rs:12:57
[INFO] [stderr]    |
[INFO] [stderr] 12 | use cache::replacement_policy::{CacheReplacementPolicy, LRU, Clock, LFU};
[INFO] [stderr]    |                                                         ^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/cache/cache.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |             try!(self.evict_next());
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `packet::MemPacket`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use packet::MemPacket;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Clock`, `LRU`
[INFO] [stderr]   --> src/main.rs:12:57
[INFO] [stderr]    |
[INFO] [stderr] 12 | use cache::replacement_policy::{CacheReplacementPolicy, LRU, Clock, LFU};
[INFO] [stderr]    |                                                         ^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/cache/storage_structure.rs:95:29
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn set_index(&mut self, index: usize, entry: DataEntry) -> (usize, Option<DataEntry>) {
[INFO] [stderr]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entry`
[INFO] [stderr]   --> src/cache/storage_structure.rs:95:43
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn set_index(&mut self, index: usize, entry: DataEntry) -> (usize, Option<DataEntry>) {
[INFO] [stderr]    |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_entry`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/commands/set.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |         Ok(val) => {
[INFO] [stderr]    |            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/cache/storage_structure.rs:95:29
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn set_index(&mut self, index: usize, entry: DataEntry) -> (usize, Option<DataEntry>) {
[INFO] [stderr]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entry`
[INFO] [stderr]   --> src/cache/storage_structure.rs:95:43
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn set_index(&mut self, index: usize, entry: DataEntry) -> (usize, Option<DataEntry>) {
[INFO] [stderr]    |                                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_entry`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/commands/set.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |         Ok(val) => {
[INFO] [stderr]    |            ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/command.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut extra_bytes: Vec<u8> = Vec::new();
[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: method is never used: `from_bytes`
[INFO] [stderr]   --> src/packet.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn from_bytes(bytes: &[u8]) -> MemPacket {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/command.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut extra_bytes: Vec<u8> = Vec::new();
[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: method is never used: `has_key`
[INFO] [stderr]   --> src/packet.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn has_key(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inc_cas`
[INFO] [stderr]   --> src/cache/value.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn inc_cas(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_bytes`
[INFO] [stderr]   --> src/packet.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn from_bytes(bytes: &[u8]) -> MemPacket {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `has_key`
[INFO] [stderr]   --> src/packet.rs:87:5
[INFO] [stderr]    |
[INFO] [stderr] 87 |     pub fn has_key(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KeyNotFound`
[INFO] [stderr]  --> src/cache/error.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     KeyNotFound,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inc_cas`
[INFO] [stderr]   --> src/cache/value.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn inc_cas(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `KeyNotFound`
[INFO] [stderr]  --> src/cache/error.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     KeyNotFound,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "012ea80e8cea485a85b2f3c1f56665bb6c8d745595477b7f6faa9801b2e3c64b"`
[INFO] running `"docker" "rm" "-f" "012ea80e8cea485a85b2f3c1f56665bb6c8d745595477b7f6faa9801b2e3c64b"`
[INFO] [stdout] 012ea80e8cea485a85b2f3c1f56665bb6c8d745595477b7f6faa9801b2e3c64b