[INFO] cloning repository benjaminhadfield/mmu
[INFO] running `"git" "clone" "--bare" "git://github.com/benjaminhadfield/mmu.git" "work/cache/sources/gh/benjaminhadfield/mmu"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/benjaminhadfield/mmu'...
[INFO] running `"git" "clone" "work/cache/sources/gh/benjaminhadfield/mmu" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/benjaminhadfield/mmu"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/benjaminhadfield/mmu'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/benjaminhadfield/mmu" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/benjaminhadfield/mmu"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/benjaminhadfield/mmu'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c2608b8855ef509e896b9f46f439ef0d42417022
[INFO] sha for GitHub repo benjaminhadfield/mmu: c2608b8855ef509e896b9f46f439ef0d42417022
[INFO] validating manifest of benjaminhadfield/mmu on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of benjaminhadfield/mmu on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing benjaminhadfield/mmu
[INFO] finished frobbing benjaminhadfield/mmu
[INFO] frobbed toml for benjaminhadfield/mmu written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/benjaminhadfield/mmu/Cargo.toml
[INFO] started frobbing benjaminhadfield/mmu
[INFO] finished frobbing benjaminhadfield/mmu
[INFO] frobbed toml for benjaminhadfield/mmu written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/benjaminhadfield/mmu/Cargo.toml
[INFO] crate benjaminhadfield/mmu already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking benjaminhadfield/mmu against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/benjaminhadfield/mmu:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 27ee048d276598d2342aab5884bb84b8a503a6abb9e1eb437d71f7e7b6ec874b
[INFO] running `"docker" "start" "-a" "27ee048d276598d2342aab5884bb84b8a503a6abb9e1eb437d71f7e7b6ec874b"`
[INFO] [stderr]     Checking mmu v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `e`
[INFO] [stderr]   --> src/hardware.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     e: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `s`
[INFO] [stderr]   --> src/hardware.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     s: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `e`
[INFO] [stderr]   --> src/hardware.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     e: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `s`
[INFO] [stderr]   --> src/hardware.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     s: u8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tlb`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let tlb = hardware::TLB::new(4, 4);
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_tlb`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tlb`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let tlb = hardware::TLB::new(4, 4);
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_tlb`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "27ee048d276598d2342aab5884bb84b8a503a6abb9e1eb437d71f7e7b6ec874b"`
[INFO] running `"docker" "rm" "-f" "27ee048d276598d2342aab5884bb84b8a503a6abb9e1eb437d71f7e7b6ec874b"`
[INFO] [stdout] 27ee048d276598d2342aab5884bb84b8a503a6abb9e1eb437d71f7e7b6ec874b