[INFO] cloning repository https://github.com/simonkorl/rust_link_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simonkorl/rust_link_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonkorl%2Frust_link_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonkorl%2Frust_link_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1dd935a1d7edaba8f5affa3b3cc8a25c5e5da8fa
[INFO] checking simonkorl/rust_link_demo against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonkorl%2Frust_link_demo" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simonkorl/rust_link_demo on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simonkorl/rust_link_demo
[INFO] finished tweaking git repo https://github.com/simonkorl/rust_link_demo
[INFO] tweaked toml for git repo https://github.com/simonkorl/rust_link_demo written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/simonkorl/rust_link_demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cmake v0.1.45
[INFO] [stderr]   Downloaded dunce v0.1.1
[INFO] [stderr]   Downloaded libc v0.2.91
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74ebd405a6876a9fd501ff3b184dc30039127a4d11abb5866b6ab94d7a487e2a
[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" "74ebd405a6876a9fd501ff3b184dc30039127a4d11abb5866b6ab94d7a487e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74ebd405a6876a9fd501ff3b184dc30039127a4d11abb5866b6ab94d7a487e2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74ebd405a6876a9fd501ff3b184dc30039127a4d11abb5866b6ab94d7a487e2a", kill_on_drop: false }`
[INFO] [stdout] 74ebd405a6876a9fd501ff3b184dc30039127a4d11abb5866b6ab94d7a487e2a
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f63583698b285b6e07a25522730480f0984bcbc43de95815da5b974b9e0e58b
[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" "7f63583698b285b6e07a25522730480f0984bcbc43de95815da5b974b9e0e58b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling dunce v0.1.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling link_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `env`, `path::PathBuf`
[INFO] [stdout]  --> src/build.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, path::PathBuf};
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.70s
[INFO] running `Command { std: "docker" "inspect" "7f63583698b285b6e07a25522730480f0984bcbc43de95815da5b974b9e0e58b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f63583698b285b6e07a25522730480f0984bcbc43de95815da5b974b9e0e58b", kill_on_drop: false }`
[INFO] [stdout] 7f63583698b285b6e07a25522730480f0984bcbc43de95815da5b974b9e0e58b