[INFO] updating cached repository https://github.com/ConnorBP/benchme
[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] 6d806e86d22822348ccde5a65205c2519f19c456
[INFO] checking ConnorBP/benchme against try#ba14a92a10441c4b839ce71e6ef5f7a48bbff18f for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorBP%2Fbenchme" "/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/ConnorBP/benchme on toolchain ba14a92a10441c4b839ce71e6ef5f7a48bbff18f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ConnorBP/benchme
[INFO] finished tweaking git repo https://github.com/ConnorBP/benchme
[INFO] tweaked toml for git repo https://github.com/ConnorBP/benchme written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ConnorBP/benchme already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "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] e5d0cbc31dd39ad61454fbbc6553334f5dbb03e0a4447e31d84b10fd7e0fbd3e
[INFO] running `"docker" "start" "-a" "e5d0cbc31dd39ad61454fbbc6553334f5dbb03e0a4447e31d84b10fd7e0fbd3e"`
[INFO] [stderr]     Checking benchme v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: expected `;`, found keyword `let`
[INFO] [stderr]   --> src/lib.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |           let start = Instant::now();
[INFO] [stderr]    |           ^^^
[INFO] [stderr] ...
[INFO] [stderr] 72 | /         runcount! {
[INFO] [stderr] 73 | |             #[testcount, 1, 0]
[INFO] [stderr] 74 | |             let x = x * 2;
[INFO] [stderr] 75 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this was erroneously allowed and will become a hard error in a future release
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lib.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |               $($lines;)*
[INFO] [stderr]    |                       ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 61 | /         benchmarknamed! {
[INFO] [stderr] 62 | |             #[IhaveAname]
[INFO] [stderr] 63 | |             for x in 0..10 {
[INFO] [stderr] 64 | |                 let y = x * 2;
[INFO] [stderr] 65 | |             };
[INFO] [stderr] 66 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/lib.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 |           $($lines;)*
[INFO] [stderr]    |                   ^ help: remove this semicolon
[INFO] [stderr] ...
[INFO] [stderr] 72 | /         runcount! {
[INFO] [stderr] 73 | |             #[testcount, 1, 0]
[INFO] [stderr] 74 | |             let x = x * 2;
[INFO] [stderr] 75 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/lib.rs:64:21
[INFO] [stderr]    |
[INFO] [stderr] 64 |                 let y = x * 2;
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_y`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/lib.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |             let x = x * 2;
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut x = 1;
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "e5d0cbc31dd39ad61454fbbc6553334f5dbb03e0a4447e31d84b10fd7e0fbd3e"`
[INFO] running `"docker" "rm" "-f" "e5d0cbc31dd39ad61454fbbc6553334f5dbb03e0a4447e31d84b10fd7e0fbd3e"`
[INFO] [stdout] e5d0cbc31dd39ad61454fbbc6553334f5dbb03e0a4447e31d84b10fd7e0fbd3e