[INFO] updating cached repository povilasb/rust-tuntap
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/povilasb/rust-tuntap
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/povilasb/rust-tuntap" "work/ex/beta-1.37-6/sources/1.36.0/gh/povilasb/rust-tuntap"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/povilasb/rust-tuntap'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/povilasb/rust-tuntap" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/povilasb/rust-tuntap"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/povilasb/rust-tuntap'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a458bf0812edde9ddf273189636a0f2cd62630e3
[INFO] sha for GitHub repo povilasb/rust-tuntap: a458bf0812edde9ddf273189636a0f2cd62630e3
[INFO] validating manifest of povilasb/rust-tuntap on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of povilasb/rust-tuntap on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing povilasb/rust-tuntap
[INFO] finished frobbing povilasb/rust-tuntap
[INFO] frobbed toml for povilasb/rust-tuntap written to work/ex/beta-1.37-6/sources/1.36.0/gh/povilasb/rust-tuntap/Cargo.toml
[INFO] started frobbing povilasb/rust-tuntap
[INFO] finished frobbing povilasb/rust-tuntap
[INFO] frobbed toml for povilasb/rust-tuntap written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/povilasb/rust-tuntap/Cargo.toml
[INFO] crate povilasb/rust-tuntap already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing povilasb/rust-tuntap against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/povilasb/rust-tuntap:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 1648311a9747d959d852061d5d223d88acd8bb971e122b6b37cc028cc0f8a69f
[INFO] running `"docker" "start" "-a" "1648311a9747d959d852061d5d223d88acd8bb971e122b6b37cc028cc0f8a69f"`
[INFO] [stderr]    Compiling nix v0.8.1
[INFO] [stderr]    Compiling vpn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `addresses`
[INFO] [stderr]   --> src/tuntap.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     addresses: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tap`
[INFO] [stderr]   --> src/tuntap.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     Tap = 2,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     io::stdin().read_line(&mut ln);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tuntap.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         create_vnet_device(fid, dev_name);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/tuntap.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         while true {
[INFO] [stderr]    |         ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(while_true)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.59s
[INFO] running `"docker" "inspect" "1648311a9747d959d852061d5d223d88acd8bb971e122b6b37cc028cc0f8a69f"`
[INFO] running `"docker" "rm" "-f" "1648311a9747d959d852061d5d223d88acd8bb971e122b6b37cc028cc0f8a69f"`
[INFO] [stdout] 1648311a9747d959d852061d5d223d88acd8bb971e122b6b37cc028cc0f8a69f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/povilasb/rust-tuntap:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0b12a081d6f45317741e35fa72e606a55ce85ca0c6f85900565bed02aa5e5a5e
[INFO] running `"docker" "start" "-a" "0b12a081d6f45317741e35fa72e606a55ce85ca0c6f85900565bed02aa5e5a5e"`
[INFO] [stderr]    Compiling vpn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `addresses`
[INFO] [stderr]   --> src/tuntap.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     addresses: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tap`
[INFO] [stderr]   --> src/tuntap.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     Tap = 2,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     io::stdin().read_line(&mut ln);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tuntap.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         create_vnet_device(fid, dev_name);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/tuntap.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |         while true {
[INFO] [stderr]    |         ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(while_true)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "0b12a081d6f45317741e35fa72e606a55ce85ca0c6f85900565bed02aa5e5a5e"`
[INFO] running `"docker" "rm" "-f" "0b12a081d6f45317741e35fa72e606a55ce85ca0c6f85900565bed02aa5e5a5e"`
[INFO] [stdout] 0b12a081d6f45317741e35fa72e606a55ce85ca0c6f85900565bed02aa5e5a5e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/povilasb/rust-tuntap:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] c1065f8872fc9c7db10bf7bcc9088d149f26292777b8672f8f4d8d4a86921509
[INFO] running `"docker" "start" "-a" "c1065f8872fc9c7db10bf7bcc9088d149f26292777b8672f8f4d8d4a86921509"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/vpn-7c77e7cce2e950b6
[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] running `"docker" "inspect" "c1065f8872fc9c7db10bf7bcc9088d149f26292777b8672f8f4d8d4a86921509"`
[INFO] running `"docker" "rm" "-f" "c1065f8872fc9c7db10bf7bcc9088d149f26292777b8672f8f4d8d4a86921509"`
[INFO] [stdout] c1065f8872fc9c7db10bf7bcc9088d149f26292777b8672f8f4d8d4a86921509