[INFO] fetching crate rust-netmap 0.0.7...
[INFO] testing rust-netmap-0.0.7 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate rust-netmap 0.0.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rust-netmap 0.0.7 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a64e162d5c5eec9ebc42907ee94def05a31193c1a5331368fe603cc781fa946e
[INFO] running `Command { std: "docker" "start" "-a" "a64e162d5c5eec9ebc42907ee94def05a31193c1a5331368fe603cc781fa946e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a64e162d5c5eec9ebc42907ee94def05a31193c1a5331368fe603cc781fa946e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a64e162d5c5eec9ebc42907ee94def05a31193c1a5331368fe603cc781fa946e", kill_on_drop: false }`
[INFO] [stdout] a64e162d5c5eec9ebc42907ee94def05a31193c1a5331368fe603cc781fa946e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a62be68a6ed41a4689b173c74e9af1bf9f076b693010ee926f8e7a553961d94
[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" "7a62be68a6ed41a4689b173c74e9af1bf9f076b693010ee926f8e7a553961d94", 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] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 5 | use os::unix::process::sys::os::getenv;
[INFO] [stdout]   |
[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] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 5  | use os::unix::process::sys::os::getenv;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-netmap`.
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7a62be68a6ed41a4689b173c74e9af1bf9f076b693010ee926f8e7a553961d94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a62be68a6ed41a4689b173c74e9af1bf9f076b693010ee926f8e7a553961d94", kill_on_drop: false }`
[INFO] [stdout] 7a62be68a6ed41a4689b173c74e9af1bf9f076b693010ee926f8e7a553961d94