[INFO] fetching crate comp_input 0.2.1...
[INFO] checking comp_input-0.2.1 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate comp_input 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate comp_input 0.2.1 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 comp_input 0.2.1
[INFO] finished tweaking crates.io crate comp_input 0.2.1
[INFO] tweaked toml for crates.io crate comp_input 0.2.1 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] 110e8f8f8644af7f6119d382df880367012c8699ed172ae678f5d9854ff9140b
[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" "110e8f8f8644af7f6119d382df880367012c8699ed172ae678f5d9854ff9140b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "110e8f8f8644af7f6119d382df880367012c8699ed172ae678f5d9854ff9140b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110e8f8f8644af7f6119d382df880367012c8699ed172ae678f5d9854ff9140b", kill_on_drop: false }`
[INFO] [stdout] 110e8f8f8644af7f6119d382df880367012c8699ed172ae678f5d9854ff9140b
[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] ff15fc5a049febb14e34cb6efb193962dda99152d89030faeef9f52f9ee0f8f8
[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" "ff15fc5a049febb14e34cb6efb193962dda99152d89030faeef9f52f9ee0f8f8", kill_on_drop: false }`
[INFO] [stderr]     Checking comp_input v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `memchr2`, `memchr3`
[INFO] [stdout]   --> src/lib.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 | use memchr::{memchr, memchr2, memchr3};
[INFO] [stdout]    |                      ^^^^^^^  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `memchr2`, `memchr3`
[INFO] [stdout]   --> src/lib.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 | use memchr::{memchr, memchr2, memchr3};
[INFO] [stdout]    |                      ^^^^^^^  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign`
[INFO] [stdout]   --> src/lib.rs:75:26
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     let (sign, digits) = if src[0] == b'+' || src[0] == b'-' {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_sign`
[INFO] [stdout] ...
[INFO] [stdout] 96 | from_ascii_uint_impl! { u8 u16 u32 u64 usize }
[INFO] [stdout]    | ---------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign`
[INFO] [stdout]   --> src/lib.rs:75:26
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     let (sign, digits) = if src[0] == b'+' || src[0] == b'-' {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_sign`
[INFO] [stdout] ...
[INFO] [stdout] 96 | from_ascii_uint_impl! { u8 u16 u32 u64 usize }
[INFO] [stdout]    | ---------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign`
[INFO] [stdout]   --> src/lib.rs:75:26
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     let (sign, digits) = if src[0] == b'+' || src[0] == b'-' {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_sign`
[INFO] [stdout] ...
[INFO] [stdout] 96 | from_ascii_uint_impl! { u8 u16 u32 u64 usize }
[INFO] [stdout]    | ---------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sign`
[INFO] [stdout]   --> src/lib.rs:75:26
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     let (sign, digits) = if src[0] == b'+' || src[0] == b'-' {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_sign`
[INFO] [stdout] ...
[INFO] [stdout] 96 | from_ascii_uint_impl! { u8 u16 u32 u64 usize }
[INFO] [stdout]    | ---------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "ff15fc5a049febb14e34cb6efb193962dda99152d89030faeef9f52f9ee0f8f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff15fc5a049febb14e34cb6efb193962dda99152d89030faeef9f52f9ee0f8f8", kill_on_drop: false }`
[INFO] [stdout] ff15fc5a049febb14e34cb6efb193962dda99152d89030faeef9f52f9ee0f8f8