[INFO] updating cached repository xiaobai/cache-sim
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xiaobai/cache-sim
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xiaobai/cache-sim" "work/ex/beta-1.38-1/sources/1.37.0/gh/xiaobai/cache-sim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/xiaobai/cache-sim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xiaobai/cache-sim" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xiaobai/cache-sim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xiaobai/cache-sim'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5328dec6ee1d2bb4faa2676d442d701104eace63
[INFO] sha for GitHub repo xiaobai/cache-sim: 5328dec6ee1d2bb4faa2676d442d701104eace63
[INFO] validating manifest of xiaobai/cache-sim on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of xiaobai/cache-sim on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing xiaobai/cache-sim
[INFO] finished frobbing xiaobai/cache-sim
[INFO] frobbed toml for xiaobai/cache-sim written to work/ex/beta-1.38-1/sources/1.37.0/gh/xiaobai/cache-sim/Cargo.toml
[INFO] started frobbing xiaobai/cache-sim
[INFO] finished frobbing xiaobai/cache-sim
[INFO] frobbed toml for xiaobai/cache-sim written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xiaobai/cache-sim/Cargo.toml
[INFO] crate xiaobai/cache-sim already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xiaobai/cache-sim/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing xiaobai/cache-sim against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xiaobai/cache-sim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 7687a39ceb75983e037e420baeb6427563f0056ffea1da41df3fb87666a62b84
[INFO] running `"docker" "start" "-a" "7687a39ceb75983e037e420baeb6427563f0056ffea1da41df3fb87666a62b84"`
[INFO] [stderr]    Compiling cachesim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `in_l2`
[INFO] [stderr]   --> src/cache/mod.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 let in_l2 = self.search_l2(mode, address);
[INFO] [stderr]    |                     ^^^^^ help: consider prefixing with an underscore: `_in_l2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/cache/mod.rs:220:30
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stderr]     |                              ^^^^ help: consider prefixing with an underscore: `_mode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/cache/mod.rs:220:48
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stderr]     |                                                ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `move_to_l2`
[INFO] [stderr]    --> src/cache/mod.rs:220:5
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `"docker" "inspect" "7687a39ceb75983e037e420baeb6427563f0056ffea1da41df3fb87666a62b84"`
[INFO] running `"docker" "rm" "-f" "7687a39ceb75983e037e420baeb6427563f0056ffea1da41df3fb87666a62b84"`
[INFO] [stdout] 7687a39ceb75983e037e420baeb6427563f0056ffea1da41df3fb87666a62b84
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xiaobai/cache-sim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b99ad63e7524bf777b672d48c045de06d966865a56a29a9373e80f6ad133de6c
[INFO] running `"docker" "start" "-a" "b99ad63e7524bf777b672d48c045de06d966865a56a29a9373e80f6ad133de6c"`
[INFO] [stderr]    Compiling cachesim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `in_l2`
[INFO] [stderr]   --> src/cache/mod.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 let in_l2 = self.search_l2(mode, address);
[INFO] [stderr]    |                     ^^^^^ help: consider prefixing with an underscore: `_in_l2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]    --> src/cache/mod.rs:220:30
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stderr]     |                              ^^^^ help: consider prefixing with an underscore: `_mode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/cache/mod.rs:220:48
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stderr]     |                                                ^^^^^^^ help: consider prefixing with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `move_to_l2`
[INFO] [stderr]    --> src/cache/mod.rs:220:5
[INFO] [stderr]     |
[INFO] [stderr] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "b99ad63e7524bf777b672d48c045de06d966865a56a29a9373e80f6ad133de6c"`
[INFO] running `"docker" "rm" "-f" "b99ad63e7524bf777b672d48c045de06d966865a56a29a9373e80f6ad133de6c"`
[INFO] [stdout] b99ad63e7524bf777b672d48c045de06d966865a56a29a9373e80f6ad133de6c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/xiaobai/cache-sim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 450f0446f0cf0475529a9c528ace10051791c4f7c105bcf249ca5d48a8f6d46b
[INFO] running `"docker" "start" "-a" "450f0446f0cf0475529a9c528ace10051791c4f7c105bcf249ca5d48a8f6d46b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cachesim-3ea331921adda640
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "450f0446f0cf0475529a9c528ace10051791c4f7c105bcf249ca5d48a8f6d46b"`
[INFO] running `"docker" "rm" "-f" "450f0446f0cf0475529a9c528ace10051791c4f7c105bcf249ca5d48a8f6d46b"`
[INFO] [stdout] 450f0446f0cf0475529a9c528ace10051791c4f7c105bcf249ca5d48a8f6d46b