[INFO] cloning repository https://github.com/ogham/checkback
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ogham/checkback" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogham%2Fcheckback", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogham%2Fcheckback'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6899390eb025b4cbe46ac722b390b53dff47a97b
[INFO] checking ogham/checkback against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogham%2Fcheckback" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ogham/checkback 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/ogham/checkback
[INFO] finished tweaking git repo https://github.com/ogham/checkback
[INFO] tweaked toml for git repo https://github.com/ogham/checkback written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ogham/checkback 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iso8601 v0.1.1
[INFO] [stderr]   Downloaded quicli v0.2.0
[INFO] [stderr]   Downloaded serde v1.0.62
[INFO] [stderr]   Downloaded serde_derive v1.0.62
[INFO] [stderr]   Downloaded structopt-derive v0.2.8
[INFO] [stderr]   Downloaded os_type v2.0.0
[INFO] [stderr]   Downloaded pad v0.1.5
[INFO] [stderr]   Downloaded datetime v0.4.7
[INFO] [stderr]   Downloaded backtrace-sys v0.1.22
[INFO] [stderr]   Downloaded structopt v0.2.8
[INFO] [stderr]   Downloaded serde_json v1.0.18
[INFO] [stderr]   Downloaded human-panic v0.4.0
[INFO] [stderr]   Downloaded rayon v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] a11e7085e1dc7516c2ab3dd662d2e20f925dbcb4db2f5a4307478182b68fe1ea
[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" "a11e7085e1dc7516c2ab3dd662d2e20f925dbcb4db2f5a4307478182b68fe1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a11e7085e1dc7516c2ab3dd662d2e20f925dbcb4db2f5a4307478182b68fe1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11e7085e1dc7516c2ab3dd662d2e20f925dbcb4db2f5a4307478182b68fe1ea", kill_on_drop: false }`
[INFO] [stdout] a11e7085e1dc7516c2ab3dd662d2e20f925dbcb4db2f5a4307478182b68fe1ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 8f425030dd7dfcf0324312dd7f98c2d6e555fcdfb1be05e98e08a3a482708012
[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" "8f425030dd7dfcf0324312dd7f98c2d6e555fcdfb1be05e98e08a3a482708012", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.62
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]     Checking itoa v0.4.1
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking adler32 v1.0.2
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling openssl-sys v0.9.31
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.22
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking regex-syntax v0.6.0
[INFO] [stderr]     Checking base64 v0.9.1
[INFO] [stderr]     Checking textwrap v0.9.0
[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] [stderr]     Checking pad 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/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] [stderr]     Checking unreachable v1.0.0
[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] [stderr]     Checking foreign-types v0.3.2
[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" "8f425030dd7dfcf0324312dd7f98c2d6e555fcdfb1be05e98e08a3a482708012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f425030dd7dfcf0324312dd7f98c2d6e555fcdfb1be05e98e08a3a482708012", kill_on_drop: false }`
[INFO] [stdout] 8f425030dd7dfcf0324312dd7f98c2d6e555fcdfb1be05e98e08a3a482708012