[INFO] cloning repository https://github.com/mattschlebusch/syscall-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattschlebusch/syscall-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattschlebusch%2Fsyscall-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattschlebusch%2Fsyscall-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 59e739176dbed3de51c277fddb200286b945ee48
[INFO] checking mattschlebusch/syscall-sandbox against try#8cf44c88fc5805dc578c5c987397615b47d2e2b2 for pr-136764
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattschlebusch%2Fsyscall-sandbox" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattschlebusch/syscall-sandbox on toolchain 8cf44c88fc5805dc578c5c987397615b47d2e2b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattschlebusch/syscall-sandbox
[INFO] finished tweaking git repo https://github.com/mattschlebusch/syscall-sandbox
[INFO] tweaked toml for git repo https://github.com/mattschlebusch/syscall-sandbox written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mattschlebusch/syscall-sandbox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking mattschlebusch/syscall-sandbox against try#8cf44c88fc5805dc578c5c987397615b47d2e2b2 for pr-136764
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattschlebusch%2Fsyscall-sandbox" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattschlebusch/syscall-sandbox on toolchain 8cf44c88fc5805dc578c5c987397615b47d2e2b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattschlebusch/syscall-sandbox
[INFO] finished tweaking git repo https://github.com/mattschlebusch/syscall-sandbox
[INFO] tweaked toml for git repo https://github.com/mattschlebusch/syscall-sandbox written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mattschlebusch/syscall-sandbox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ccd73e23996933d25277f2068b006a63c5269ece785faf4b863bdba8c25cb80
[INFO] running `Command { std: "docker" "start" "-a" "5ccd73e23996933d25277f2068b006a63c5269ece785faf4b863bdba8c25cb80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ccd73e23996933d25277f2068b006a63c5269ece785faf4b863bdba8c25cb80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ccd73e23996933d25277f2068b006a63c5269ece785faf4b863bdba8c25cb80", kill_on_drop: false }`
[INFO] [stdout] 5ccd73e23996933d25277f2068b006a63c5269ece785faf4b863bdba8c25cb80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+8cf44c88fc5805dc578c5c987397615b47d2e2b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2087f9689bc7c0f3814f0c75cdf3767a66026810685136bdc63903ed4adaa13b
[INFO] running `Command { std: "docker" "start" "-a" "2087f9689bc7c0f3814f0c75cdf3767a66026810685136bdc63903ed4adaa13b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]     Checking syscall-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     drop(ptr);
[INFO] [stdout]    |     ^^^^^---^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `*mut c_void`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 53 -     drop(ptr);
[INFO] [stdout] 53 +     let _ = ptr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     drop(ptr);
[INFO] [stdout]    |     ^^^^^---^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `*mut c_void`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 53 -     drop(ptr);
[INFO] [stdout] 53 +     let _ = ptr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "2087f9689bc7c0f3814f0c75cdf3767a66026810685136bdc63903ed4adaa13b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2087f9689bc7c0f3814f0c75cdf3767a66026810685136bdc63903ed4adaa13b", kill_on_drop: false }`
[INFO] [stdout] 2087f9689bc7c0f3814f0c75cdf3767a66026810685136bdc63903ed4adaa13b