[INFO] crate gperftools-static 0.1.2 is already in cache
[INFO] checking gperftools-static-0.1.2 against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] extracting crate gperftools-static 0.1.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate gperftools-static 0.1.2 on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gperftools-static 0.1.2
[INFO] finished tweaking crates.io crate gperftools-static 0.1.2
[INFO] tweaked toml for crates.io crate gperftools-static 0.1.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate gperftools-static 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 07443c794d11dd08db7471c7eea20c565e83581d3cd15177012ee5c86f0194bb
[INFO] running `"docker" "start" "-a" "07443c794d11dd08db7471c7eea20c565e83581d3cd15177012ee5c86f0194bb"`
[INFO] [stderr]    Compiling libc v0.2.64
[INFO] [stderr]    Compiling gperftools v0.2.0
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling gperftools-static v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> build.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fs`
[INFO] [stderr]  --> build.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fs, io};
[INFO] [stderr]   |           ^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.49s
[INFO] running `"docker" "inspect" "07443c794d11dd08db7471c7eea20c565e83581d3cd15177012ee5c86f0194bb"`
[INFO] running `"docker" "rm" "-f" "07443c794d11dd08db7471c7eea20c565e83581d3cd15177012ee5c86f0194bb"`
[INFO] [stdout] 07443c794d11dd08db7471c7eea20c565e83581d3cd15177012ee5c86f0194bb