[INFO] fetching crate rust-netmap 0.0.7...
[INFO] checking rust-netmap-0.0.7 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate rust-netmap 0.0.7 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate rust-netmap 0.0.7 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25e392d69f7c33e5c8a5f714b96fa61af255e8a8bcffd48ba32c686a2acbea3d
[INFO] running `Command { std: "docker" "start" "-a" "25e392d69f7c33e5c8a5f714b96fa61af255e8a8bcffd48ba32c686a2acbea3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25e392d69f7c33e5c8a5f714b96fa61af255e8a8bcffd48ba32c686a2acbea3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e392d69f7c33e5c8a5f714b96fa61af255e8a8bcffd48ba32c686a2acbea3d", kill_on_drop: false }`
[INFO] [stdout] 25e392d69f7c33e5c8a5f714b96fa61af255e8a8bcffd48ba32c686a2acbea3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d253b33d612df6e4ac8ce1a44ae82a20d4456aa6fd4b685c4100010dbb4ff27c
[INFO] running `Command { std: "docker" "start" "-a" "d253b33d612df6e4ac8ce1a44ae82a20d4456aa6fd4b685c4100010dbb4ff27c", 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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d253b33d612df6e4ac8ce1a44ae82a20d4456aa6fd4b685c4100010dbb4ff27c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d253b33d612df6e4ac8ce1a44ae82a20d4456aa6fd4b685c4100010dbb4ff27c", kill_on_drop: false }`
[INFO] [stdout] d253b33d612df6e4ac8ce1a44ae82a20d4456aa6fd4b685c4100010dbb4ff27c