[INFO] fetching crate rust-netmap 0.0.7...
[INFO] checking rust-netmap-0.0.7 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate rust-netmap 0.0.7 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rust-netmap 0.0.7 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-netmap 0.0.7
[INFO] finished tweaking crates.io crate rust-netmap 0.0.7
[INFO] tweaked toml for crates.io crate rust-netmap 0.0.7 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad61071e378f559c87b3be15e0b32e500516ef55eb7dad395a25267a18f7d1c1
[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" "ad61071e378f559c87b3be15e0b32e500516ef55eb7dad395a25267a18f7d1c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad61071e378f559c87b3be15e0b32e500516ef55eb7dad395a25267a18f7d1c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad61071e378f559c87b3be15e0b32e500516ef55eb7dad395a25267a18f7d1c1", kill_on_drop: false }`
[INFO] [stdout] ad61071e378f559c87b3be15e0b32e500516ef55eb7dad395a25267a18f7d1c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6853f9584f97d9cac6a763641707a8b52527a60b2f47adbf7be0a3d2602538f5
[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" "6853f9584f97d9cac6a763641707a8b52527a60b2f47adbf7be0a3d2602538f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-netmap v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `unstable`
[INFO] [stdout]  --> build.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![allow(unstable)]
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> build.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::old_io::Command;
[INFO] [stdout]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]  --> build.rs:9:23
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let out_dir = os::getenv("OUT_DIR").unwrap();
[INFO] [stdout]   |                       ^^^^^^ not found in `os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]   --> build.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 |     if let Some(_) = os::getenv("CARGO_FEATURE_NETMAP_WITH_LIBS") {
[INFO] [stdout]    |                          ^^^^^^ not found in `os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-netmap` due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6853f9584f97d9cac6a763641707a8b52527a60b2f47adbf7be0a3d2602538f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6853f9584f97d9cac6a763641707a8b52527a60b2f47adbf7be0a3d2602538f5", kill_on_drop: false }`
[INFO] [stdout] 6853f9584f97d9cac6a763641707a8b52527a60b2f47adbf7be0a3d2602538f5