[INFO] updating cached repository https://github.com/ioncodes/memory_stuff
[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] 3e62297a2491714400749b7d3c04e82ef4568a8a
[INFO] checking ioncodes/memory_stuff against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fioncodes%2Fmemory_stuff" "/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/ioncodes/memory_stuff on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ioncodes/memory_stuff
[INFO] finished tweaking git repo https://github.com/ioncodes/memory_stuff
[INFO] tweaked toml for git repo https://github.com/ioncodes/memory_stuff written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ioncodes/memory_stuff already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 90d54389559dca5ca98d7f4fcf8b24b898b8419e61a7193804cbf2f663ba0fa2
[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" "90d54389559dca5ca98d7f4fcf8b24b898b8419e61a7193804cbf2f663ba0fa2"`
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking errno v0.2.3
[INFO] [stderr]     Checking aligned_alloc v0.1.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking region v0.1.1
[INFO] [stderr]     Checking memory_stuff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/memory.rs:88:19
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let func: (fn() -> usize);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/memory.rs:88:19
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let func: (fn() -> usize);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/memory.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut ptr: *mut libc::c_void;
[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/memory.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |         let mut ptr: *mut libc::c_void;
[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 read: `size`
[INFO] [stderr]   --> src/memory.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     size: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fill`
[INFO] [stderr]   --> src/memory.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn fill(&mut self, asm: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `size`
[INFO] [stderr]   --> src/memory.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     size: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fill`
[INFO] [stderr]   --> src/memory.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub fn fill(&mut self, asm: u8) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/memory.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn reset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]   --> src/memory.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn reset(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.26s
[INFO] running `"docker" "inspect" "90d54389559dca5ca98d7f4fcf8b24b898b8419e61a7193804cbf2f663ba0fa2"`
[INFO] running `"docker" "rm" "-f" "90d54389559dca5ca98d7f4fcf8b24b898b8419e61a7193804cbf2f663ba0fa2"`
[INFO] [stdout] 90d54389559dca5ca98d7f4fcf8b24b898b8419e61a7193804cbf2f663ba0fa2