[INFO] fetching crate comp_input 0.2.1...
[INFO] checking comp_input-0.2.1 against master#893fadd11a52aa26fc19c67ee1b79f03d6a1bed3 for pr-77153
[INFO] extracting crate comp_input 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate comp_input 0.2.1 on toolchain 893fadd11a52aa26fc19c67ee1b79f03d6a1bed3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "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] bd6eb2b9d75f51b4c24dda8d6d9028594a817f708115517cffd3d63c22778824
[INFO] running `Command { std: "docker" "start" "-a" "bd6eb2b9d75f51b4c24dda8d6d9028594a817f708115517cffd3d63c22778824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd6eb2b9d75f51b4c24dda8d6d9028594a817f708115517cffd3d63c22778824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd6eb2b9d75f51b4c24dda8d6d9028594a817f708115517cffd3d63c22778824", kill_on_drop: false }`
[INFO] [stdout] bd6eb2b9d75f51b4c24dda8d6d9028594a817f708115517cffd3d63c22778824
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 6290319bf3cf88449d9b078280358479d0f09c43072de479a0755e64fa9a9ece
[INFO] running `Command { std: "docker" "start" "-a" "6290319bf3cf88449d9b078280358479d0f09c43072de479a0755e64fa9a9ece", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[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 1.48s
[INFO] running `Command { std: "docker" "inspect" "6290319bf3cf88449d9b078280358479d0f09c43072de479a0755e64fa9a9ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6290319bf3cf88449d9b078280358479d0f09c43072de479a0755e64fa9a9ece", kill_on_drop: false }`
[INFO] [stdout] 6290319bf3cf88449d9b078280358479d0f09c43072de479a0755e64fa9a9ece