[INFO] updating cached repository sjbaker47/rust-nslookup
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sjbaker47/rust-nslookup
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sjbaker47/rust-nslookup" "work/ex/beta-1.38-1/sources/1.37.0/gh/sjbaker47/rust-nslookup"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sjbaker47/rust-nslookup'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sjbaker47/rust-nslookup" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sjbaker47/rust-nslookup"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sjbaker47/rust-nslookup'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1ae35cc62e1c2401b077b320cb2d3404b02b40cb
[INFO] sha for GitHub repo sjbaker47/rust-nslookup: 1ae35cc62e1c2401b077b320cb2d3404b02b40cb
[INFO] validating manifest of sjbaker47/rust-nslookup 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 sjbaker47/rust-nslookup 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 sjbaker47/rust-nslookup
[INFO] finished frobbing sjbaker47/rust-nslookup
[INFO] frobbed toml for sjbaker47/rust-nslookup written to work/ex/beta-1.38-1/sources/1.37.0/gh/sjbaker47/rust-nslookup/Cargo.toml
[INFO] started frobbing sjbaker47/rust-nslookup
[INFO] finished frobbing sjbaker47/rust-nslookup
[INFO] frobbed toml for sjbaker47/rust-nslookup written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sjbaker47/rust-nslookup/Cargo.toml
[INFO] crate sjbaker47/rust-nslookup already has a lockfile, it will not be regenerated
[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] testing sjbaker47/rust-nslookup against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/sjbaker47/rust-nslookup:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 4b61121c0216202b11634a9ef037e06836897466a5ed16baff3770c1840b0020
[INFO] running `"docker" "start" "-a" "4b61121c0216202b11634a9ef037e06836897466a5ed16baff3770c1840b0020"`
[INFO] [stderr]    Compiling nslookup v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/protocol/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:21:54
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn run(hostname : String) -> Result<DnsResponse, Box<Error>> {
[INFO] [stderr]    |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/protocol/mod.rs:157:13
[INFO] [stderr]     |
[INFO] [stderr] 157 |         for i in 0..nquestions {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/protocol/mod.rs:166:13
[INFO] [stderr]     |
[INFO] [stderr] 166 |         for i in 0..nanswers {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `"docker" "inspect" "4b61121c0216202b11634a9ef037e06836897466a5ed16baff3770c1840b0020"`
[INFO] running `"docker" "rm" "-f" "4b61121c0216202b11634a9ef037e06836897466a5ed16baff3770c1840b0020"`
[INFO] [stdout] 4b61121c0216202b11634a9ef037e06836897466a5ed16baff3770c1840b0020
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/sjbaker47/rust-nslookup:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 001db80933f139638b9396d6389b363a7f1c97222a970ced42e208467aed963a
[INFO] running `"docker" "start" "-a" "001db80933f139638b9396d6389b363a7f1c97222a970ced42e208467aed963a"`
[INFO] [stderr]    Compiling nslookup v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Cursor`
[INFO] [stderr]    --> src/protocol/name.rs:114:40
[INFO] [stderr]     |
[INFO] [stderr] 114 |     let decoded = decode_name_rdr(&mut Cursor::new(&buf)).unwrap();
[INFO] [stderr]     |                                        ^^^^^^ use of undeclared type or module `Cursor`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Cursor`
[INFO] [stderr]    --> src/protocol/name.rs:119:40
[INFO] [stderr]     |
[INFO] [stderr] 119 |     let decoded = decode_name_rdr(&mut Cursor::new(&buf)).unwrap();
[INFO] [stderr]     |                                        ^^^^^^ use of undeclared type or module `Cursor`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `decode_name` in this scope
[INFO] [stderr]    --> src/protocol/name.rs:101:19
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let decoded = decode_name(&buf);
[INFO] [stderr]     |                   ^^^^^^^^^^^ help: a function with a similar name exists: `encode_name`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `decode_name` in this scope
[INFO] [stderr]    --> src/protocol/name.rs:106:19
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let decoded = decode_name(&buf);
[INFO] [stderr]     |                   ^^^^^^^^^^^ help: a function with a similar name exists: `encode_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> src/protocol/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:21:54
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn run(hostname : String) -> Result<DnsResponse, Box<Error>> {
[INFO] [stderr]    |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `nslookup`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "001db80933f139638b9396d6389b363a7f1c97222a970ced42e208467aed963a"`
[INFO] running `"docker" "rm" "-f" "001db80933f139638b9396d6389b363a7f1c97222a970ced42e208467aed963a"`
[INFO] [stdout] 001db80933f139638b9396d6389b363a7f1c97222a970ced42e208467aed963a