[INFO] fetching crate hash_browns 0.1.1...
[INFO] checking hash_browns-0.1.1 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate hash_browns 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate hash_browns 0.1.1 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 crates.io crate hash_browns 0.1.1
[INFO] finished tweaking crates.io crate hash_browns 0.1.1
[INFO] tweaked toml for crates.io crate hash_browns 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] af54975af34269b4bc386719c2a1f023a80fa979635664fef507f4737e1deb63
[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" "af54975af34269b4bc386719c2a1f023a80fa979635664fef507f4737e1deb63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af54975af34269b4bc386719c2a1f023a80fa979635664fef507f4737e1deb63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af54975af34269b4bc386719c2a1f023a80fa979635664fef507f4737e1deb63", kill_on_drop: false }`
[INFO] [stdout] af54975af34269b4bc386719c2a1f023a80fa979635664fef507f4737e1deb63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] f965ebe2b6bd9b0c7a74daa92aca9053081a8746ddbf8358f0bb9adbfa620d07
[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" "f965ebe2b6bd9b0c7a74daa92aca9053081a8746ddbf8358f0bb9adbfa620d07", kill_on_drop: false }`
[INFO] [stderr]     Checking hash_browns v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::numbers::*`
[INFO] [stdout]  --> src/pipes.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::numbers::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::numbers::*`
[INFO] [stdout]  --> src/pipes.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::numbers::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_sys_time_in_secs`
[INFO] [stdout]  --> src/nutils.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_sys_time_in_secs() -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "f965ebe2b6bd9b0c7a74daa92aca9053081a8746ddbf8358f0bb9adbfa620d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f965ebe2b6bd9b0c7a74daa92aca9053081a8746ddbf8358f0bb9adbfa620d07", kill_on_drop: false }`
[INFO] [stdout] f965ebe2b6bd9b0c7a74daa92aca9053081a8746ddbf8358f0bb9adbfa620d07