[INFO] cloning repository https://github.com/xiaobai/cache-sim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiaobai/cache-sim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaobai%2Fcache-sim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaobai%2Fcache-sim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5328dec6ee1d2bb4faa2676d442d701104eace63
[INFO] checking xiaobai/cache-sim against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaobai%2Fcache-sim" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiaobai/cache-sim on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xiaobai/cache-sim
[INFO] finished tweaking git repo https://github.com/xiaobai/cache-sim
[INFO] tweaked toml for git repo https://github.com/xiaobai/cache-sim written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/xiaobai/cache-sim already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8b25a92e4d821728a646a027e91f1de7f14e52c93eed85245979f0570b23a7eb
[INFO] running `Command { std: "docker" "start" "-a" "8b25a92e4d821728a646a027e91f1de7f14e52c93eed85245979f0570b23a7eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b25a92e4d821728a646a027e91f1de7f14e52c93eed85245979f0570b23a7eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b25a92e4d821728a646a027e91f1de7f14e52c93eed85245979f0570b23a7eb", kill_on_drop: false }`
[INFO] [stdout] 8b25a92e4d821728a646a027e91f1de7f14e52c93eed85245979f0570b23a7eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7abed36afd66667e37ca46a745e34de78e2b7585158977eaaaa69c0d7a800672
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7abed36afd66667e37ca46a745e34de78e2b7585158977eaaaa69c0d7a800672", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking cachesim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `in_l2`
[INFO] [stdout]   --> src/cache/mod.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 let in_l2 = self.search_l2(mode, address);
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_in_l2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/cache/mod.rs:220:30
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/cache/mod.rs:220:48
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stdout]     |                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `move_to_l2`
[INFO] [stdout]    --> src/cache/mod.rs:220:8
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `in_l2`
[INFO] [stdout]   --> src/cache/mod.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 let in_l2 = self.search_l2(mode, address);
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_in_l2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/cache/mod.rs:220:30
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]    --> src/cache/mod.rs:220:48
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stdout]     |                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `move_to_l2`
[INFO] [stdout]    --> src/cache/mod.rs:220:8
[INFO] [stdout]     |
[INFO] [stdout] 220 |     fn move_to_l2(&mut self, mode: AccessType, address: u64) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.46s
[INFO] running `Command { std: "docker" "inspect" "7abed36afd66667e37ca46a745e34de78e2b7585158977eaaaa69c0d7a800672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7abed36afd66667e37ca46a745e34de78e2b7585158977eaaaa69c0d7a800672", kill_on_drop: false }`
[INFO] [stdout] 7abed36afd66667e37ca46a745e34de78e2b7585158977eaaaa69c0d7a800672