[INFO] fetching crate gperftools-static 0.1.2...
[INFO] checking gperftools-static-0.1.2 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate gperftools-static 0.1.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate gperftools-static 0.1.2 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-14/source/Cargo.toml
[INFO] crate crates.io crate gperftools-static 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 176961c9623c7673bfc9ed8bd575dfd90224bc86bf90a4cc12bb3dfc056991de
[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" "176961c9623c7673bfc9ed8bd575dfd90224bc86bf90a4cc12bb3dfc056991de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "176961c9623c7673bfc9ed8bd575dfd90224bc86bf90a4cc12bb3dfc056991de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "176961c9623c7673bfc9ed8bd575dfd90224bc86bf90a4cc12bb3dfc056991de", kill_on_drop: false }`
[INFO] [stdout] 176961c9623c7673bfc9ed8bd575dfd90224bc86bf90a4cc12bb3dfc056991de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94e9ba2a10fa4c6db014a5e6b5bc7d90bfc6b8df5fb6fccc7214276204c08e7e
[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" "94e9ba2a10fa4c6db014a5e6b5bc7d90bfc6b8df5fb6fccc7214276204c08e7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.64
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling gperftools v0.2.0
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling gperftools-static v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Path`
[INFO] [stdout]  --> build.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> build.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fs, io};
[INFO] [stdout]   |           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.48s
[INFO] running `Command { std: "docker" "inspect" "94e9ba2a10fa4c6db014a5e6b5bc7d90bfc6b8df5fb6fccc7214276204c08e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e9ba2a10fa4c6db014a5e6b5bc7d90bfc6b8df5fb6fccc7214276204c08e7e", kill_on_drop: false }`
[INFO] [stdout] 94e9ba2a10fa4c6db014a5e6b5bc7d90bfc6b8df5fb6fccc7214276204c08e7e