[INFO] crate tun-tap 0.1.2 is already in cache
[INFO] extracting crate tun-tap 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/tun-tap/0.1.2
[INFO] extracting crate tun-tap 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tun-tap/0.1.2
[INFO] validating manifest of tun-tap-0.1.2 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tun-tap-0.1.2 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tun-tap-0.1.2
[INFO] finished frobbing tun-tap-0.1.2
[INFO] frobbed toml for tun-tap-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tun-tap/0.1.2/Cargo.toml
[INFO] started frobbing tun-tap-0.1.2
[INFO] finished frobbing tun-tap-0.1.2
[INFO] frobbed toml for tun-tap-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tun-tap/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing tun-tap-0.1.2 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tun-tap/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 6ec517bcb648e9a1070d7c454061147aafe1f4035cf3a0c0f78f76b599f4368e
[INFO] running `"docker" "start" "-a" "6ec517bcb648e9a1070d7c454061147aafe1f4035cf3a0c0f78f76b599f4368e"`
[INFO] [stderr]    Compiling tun-tap v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
[INFO] running `"docker" "inspect" "6ec517bcb648e9a1070d7c454061147aafe1f4035cf3a0c0f78f76b599f4368e"`
[INFO] running `"docker" "rm" "-f" "6ec517bcb648e9a1070d7c454061147aafe1f4035cf3a0c0f78f76b599f4368e"`
[INFO] [stdout] 6ec517bcb648e9a1070d7c454061147aafe1f4035cf3a0c0f78f76b599f4368e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tun-tap/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d0ca20636007632d58de25f99c7d777340922d54f2d29e7115d8d59d7194d288
[INFO] running `"docker" "start" "-a" "d0ca20636007632d58de25f99c7d777340922d54f2d29e7115d8d59d7194d288"`
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling version-sync v0.5.0
[INFO] [stderr]    Compiling tun-tap v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `futures::stream::Map` in tuple element 0 that must be used
[INFO] [stderr]   --> examples/tokio.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     core.run(reader.join(writer)).unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: streams do nothing unless polled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.50s
[INFO] running `"docker" "inspect" "d0ca20636007632d58de25f99c7d777340922d54f2d29e7115d8d59d7194d288"`
[INFO] running `"docker" "rm" "-f" "d0ca20636007632d58de25f99c7d777340922d54f2d29e7115d8d59d7194d288"`
[INFO] [stdout] d0ca20636007632d58de25f99c7d777340922d54f2d29e7115d8d59d7194d288
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tun-tap/0.1.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] b322480f992e9ba828470e52bfdb507b2892499653a5e6fcbcee1e2691eedf3e
[INFO] running `"docker" "start" "-a" "b322480f992e9ba828470e52bfdb507b2892499653a5e6fcbcee1e2691eedf3e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tun_tap-30914cc25e56bea8
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/version-87b6ced230c93e2a
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_readme_deps ... ok
[INFO] [stdout] test test_html_root_url ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tun-tap
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/async.rs - async::Async::new (line 73) ... ok
[INFO] [stdout] test src/lib.rs - Iface::without_packet_info (line 121) ... ok
[INFO] [stdout] test src/lib.rs - Iface::new (line 90) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b322480f992e9ba828470e52bfdb507b2892499653a5e6fcbcee1e2691eedf3e"`
[INFO] running `"docker" "rm" "-f" "b322480f992e9ba828470e52bfdb507b2892499653a5e6fcbcee1e2691eedf3e"`
[INFO] [stdout] b322480f992e9ba828470e52bfdb507b2892499653a5e6fcbcee1e2691eedf3e