[INFO] cloning repository https://github.com/stephenc/dns-watch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stephenc/dns-watch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenc%2Fdns-watch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenc%2Fdns-watch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 497c9331ae6c018615052e84b37102032a43d96f
[INFO] checking stephenc/dns-watch against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstephenc%2Fdns-watch" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stephenc/dns-watch on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stephenc/dns-watch
[INFO] finished tweaking git repo https://github.com/stephenc/dns-watch
[INFO] tweaked toml for git repo https://github.com/stephenc/dns-watch written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/stephenc/dns-watch already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded domain v0.4.0
[INFO] [stderr]   Downloaded domain-resolv v0.4.0
[INFO] [stderr]   Downloaded meval v0.1.0
[INFO] [stderr]   Downloaded getopts v0.2.19
[INFO] [stderr]   Downloaded domain-core v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e1403863379fada0a625d88248718f747e96ff02d13843170fe38fe92bc11c9
[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" "2e1403863379fada0a625d88248718f747e96ff02d13843170fe38fe92bc11c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e1403863379fada0a625d88248718f747e96ff02d13843170fe38fe92bc11c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e1403863379fada0a625d88248718f747e96ff02d13843170fe38fe92bc11c9", kill_on_drop: false }`
[INFO] [stdout] 2e1403863379fada0a625d88248718f747e96ff02d13843170fe38fe92bc11c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af38614c872d9187702eaf8b256da69f16d30b3a24f76ed7fa7eef6d0be45f5d
[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" "af38614c872d9187702eaf8b256da69f16d30b3a24f76ed7fa7eef6d0be45f5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking futures v0.1.26
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/macros.rs:1210:5
[INFO] [stdout]      |
[INFO] [stdout] 1210 | /     {
[INFO] [stdout] 1211 | |       alt_parser!($i, $($rest)*)
[INFO] [stdout]      | |                                - help: consider removing this semicolon
[INFO] [stdout] 1212 | |     }
[INFO] [stdout]      | |_____^ expected enum `internal::IResult`, found `()`
[INFO] [stdout]      | 
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/character.rs:135:1
[INFO] [stdout]      |
[INFO] [stdout] 135  |   named!(pub eol<char>, alt!(crlf | newline));
[INFO] [stdout]      |   -------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note:   expected enum `internal::IResult<&[u8], char>`
[INFO] [stdout]              found unit type `()`
[INFO] [stdout]      = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/nom.rs:328:26
[INFO] [stdout]     |
[INFO] [stdout] 328 | pub fn be_i8(i:&[u8]) -> IResult<&[u8], i8> {
[INFO] [stdout]     |        -----             ^^^^^^^^^^^^^^^^^^ expected enum `internal::IResult`, found `()`
[INFO] [stdout]     |        |
[INFO] [stdout]     |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 329 |   map!(i, be_u8, | x | { x as i8 })
[INFO] [stdout]     |                                   - help: consider removing this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `internal::IResult<&[u8], i8>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/nom.rs:334:27
[INFO] [stdout]     |
[INFO] [stdout] 334 | pub fn be_i16(i:&[u8]) -> IResult<&[u8], i16> {
[INFO] [stdout]     |        ------             ^^^^^^^^^^^^^^^^^^^ expected enum `internal::IResult`, found `()`
[INFO] [stdout]     |        |
[INFO] [stdout]     |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 335 |   map!(i, be_u16, | x | { x as i16 })
[INFO] [stdout]     |                                     - help: consider removing this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `internal::IResult<&[u8], i16>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/nom.rs:340:27
[INFO] [stdout]     |
[INFO] [stdout] 340 | pub fn be_i32(i:&[u8]) -> IResult<&[u8], i32> {
[INFO] [stdout]     |        ------             ^^^^^^^^^^^^^^^^^^^ expected enum `internal::IResult`, found `()`
[INFO] [stdout]     |        |
[INFO] [stdout]     |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 341 |   map!(i, be_u32, | x | { x as i32 })
[INFO] [stdout]     |                                     - help: consider removing this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `internal::IResult<&[u8], i32>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/nom.rs:346:27
[INFO] [stdout]     |
[INFO] [stdout] 346 | pub fn be_i64(i:&[u8]) -> IResult<&[u8], i64> {
[INFO] [stdout]     |        ------             ^^^^^^^^^^^^^^^^^^^ expected enum `internal::IResult`, found `()`
[INFO] [stdout]     |        |
[INFO] [stdout]     |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 347 |   map!(i, be_u64, | x | { x as i64 })
[INFO] [stdout]     |                                     - help: consider removing this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `internal::IResult<&[u8], i64>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/nom.rs:396:26
[INFO] [stdout]     |
[INFO] [stdout] 396 | pub fn le_i8(i:&[u8]) -> IResult<&[u8], i8> {
[INFO] [stdout]     |        -----             ^^^^^^^^^^^^^^^^^^ expected enum `internal::IResult`, found `()`
[INFO] [stdout]     |        |
[INFO] [stdout]     |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 397 |   map!(i, le_u8, | x | { x as i8 })
[INFO] [stdout]     |                                   - help: consider removing this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `internal::IResult<&[u8], i8>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/nom.rs:402:27
[INFO] [stdout]     |
[INFO] [stdout] 402 | pub fn le_i16(i:&[u8]) -> IResult<&[u8], i16> {
[INFO] [stdout]     |        ------             ^^^^^^^^^^^^^^^^^^^ expected enum `internal::IResult`, found `()`
[INFO] [stdout]     |        |
[INFO] [stdout]     |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 403 |   map!(i, le_u16, | x | { x as i16 })
[INFO] [stdout]     |                                     - help: consider removing this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `internal::IResult<&[u8], i16>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/nom.rs:408:27
[INFO] [stdout]     |
[INFO] [stdout] 408 | pub fn le_i32(i:&[u8]) -> IResult<&[u8], i32> {
[INFO] [stdout]     |        ------             ^^^^^^^^^^^^^^^^^^^ expected enum `internal::IResult`, found `()`
[INFO] [stdout]     |        |
[INFO] [stdout]     |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 409 |   map!(i, le_u32, | x | { x as i32 })
[INFO] [stdout]     |                                     - help: consider removing this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `internal::IResult<&[u8], i32>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nom-1.2.4/src/nom.rs:414:27
[INFO] [stdout]     |
[INFO] [stdout] 414 | pub fn le_i64(i:&[u8]) -> IResult<&[u8], i64> {
[INFO] [stdout]     |        ------             ^^^^^^^^^^^^^^^^^^^ expected enum `internal::IResult`, found `()`
[INFO] [stdout]     |        |
[INFO] [stdout]     |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 415 |   map!(i, le_u64, | x | { x as i64 })
[INFO] [stdout]     |                                     - help: consider removing this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `internal::IResult<&[u8], i64>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nom`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "af38614c872d9187702eaf8b256da69f16d30b3a24f76ed7fa7eef6d0be45f5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af38614c872d9187702eaf8b256da69f16d30b3a24f76ed7fa7eef6d0be45f5d", kill_on_drop: false }`
[INFO] [stdout] af38614c872d9187702eaf8b256da69f16d30b3a24f76ed7fa7eef6d0be45f5d