[INFO] fetching crate libimagannotation 0.3.0...
[INFO] checking libimagannotation-0.3.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate libimagannotation 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate libimagannotation 0.3.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libimagannotation 0.3.0
[INFO] finished tweaking crates.io crate libimagannotation 0.3.0
[INFO] tweaked toml for crates.io crate libimagannotation 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc3efd8af7336e93962c210170b04ee5c2d6f51e4e02fc481192931bb83b8a84
[INFO] running `Command { std: "docker" "start" "-a" "cc3efd8af7336e93962c210170b04ee5c2d6f51e4e02fc481192931bb83b8a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc3efd8af7336e93962c210170b04ee5c2d6f51e4e02fc481192931bb83b8a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc3efd8af7336e93962c210170b04ee5c2d6f51e4e02fc481192931bb83b8a84", kill_on_drop: false }`
[INFO] [stdout] cc3efd8af7336e93962c210170b04ee5c2d6f51e4e02fc481192931bb83b8a84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 988ca82bc42725c03e7483bef09c83f7303b34ce2637235c1f4f8c903c5d9339
[INFO] running `Command { std: "docker" "start" "-a" "988ca82bc42725c03e7483bef09c83f7303b34ce2637235c1f4f8c903c5d9339", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking filters v0.1.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking libimagerror v0.3.0
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]     Checking libimagutil v0.3.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking semver-parser v0.6.2
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking semver v0.5.1
[INFO] [stderr]     Checking libimagstore v0.3.0
[INFO] [stderr]     Checking libimagrt v0.3.0
[INFO] [stderr]     Checking libimagentrytag v0.3.0
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libimagrt-0.3.0/src/configuration.rs:256:10
[INFO] [stdout]     |
[INFO] [stdout] 256 |         .flatten()
[INFO] [stdout]     |          ^^^^^^^ multiple `flatten` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `std::slice::Iter<'a, T>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 246 |     Iterator::flatten(vec![
[INFO] [stdout] 247 |         vec![rtp.clone()],
[INFO] [stdout] 248 |         gen_vars(rtp.clone(), variants.clone(), &modifier),
[INFO] [stdout] 249 | 
[INFO] [stdout] 250 |         env::var("HOME").map(|home| gen_vars(PathBuf::from(home), variants.clone(), &modifier))
[INFO] [stdout] 251 |                         .unwrap_or(vec![]),
[INFO] [stdout]   ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 246 |     Itertools::flatten(vec![
[INFO] [stdout] 247 |         vec![rtp.clone()],
[INFO] [stdout] 248 |         gen_vars(rtp.clone(), variants.clone(), &modifier),
[INFO] [stdout] 249 | 
[INFO] [stdout] 250 |         env::var("HOME").map(|home| gen_vars(PathBuf::from(home), variants.clone(), &modifier))
[INFO] [stdout] 251 |                         .unwrap_or(vec![]),
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libimagrt`
[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" "988ca82bc42725c03e7483bef09c83f7303b34ce2637235c1f4f8c903c5d9339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "988ca82bc42725c03e7483bef09c83f7303b34ce2637235c1f4f8c903c5d9339", kill_on_drop: false }`
[INFO] [stdout] 988ca82bc42725c03e7483bef09c83f7303b34ce2637235c1f4f8c903c5d9339