[INFO] fetching crate imag-counter 0.4.0...
[INFO] testing imag-counter-0.4.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate imag-counter 0.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate imag-counter 0.4.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imag-counter 0.4.0
[INFO] finished tweaking crates.io crate imag-counter 0.4.0
[INFO] tweaked toml for crates.io crate imag-counter 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c0923be88ac7a129ebbbc09d38dde8ef23ffe04e478e1a42755ee076b90dec4
[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" "0c0923be88ac7a129ebbbc09d38dde8ef23ffe04e478e1a42755ee076b90dec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c0923be88ac7a129ebbbc09d38dde8ef23ffe04e478e1a42755ee076b90dec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c0923be88ac7a129ebbbc09d38dde8ef23ffe04e478e1a42755ee076b90dec4", kill_on_drop: false }`
[INFO] [stdout] 0c0923be88ac7a129ebbbc09d38dde8ef23ffe04e478e1a42755ee076b90dec4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9b89070dbcd34cbb255470448a3bf0453e64b5eb03b11eabbf7ce6a2bbcc967b
[INFO] running `Command { std: "docker" "start" "-a" "9b89070dbcd34cbb255470448a3bf0453e64b5eb03b11eabbf7ce6a2bbcc967b", kill_on_drop: false }`
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.17
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling version v2.0.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling itertools v0.6.5
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling libimagerror v0.4.0
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling handlebars v0.29.1
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling libimagutil v0.4.0
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling toml-query v0.3.1
[INFO] [stderr]    Compiling libimagstore v0.4.0
[INFO] [stderr]    Compiling libimagcounter v0.4.0
[INFO] [stderr]    Compiling libimagrt v0.4.0
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libimagrt-0.4.0/src/configuration.rs:270:10
[INFO] [stdout]     |
[INFO] [stdout] 270 |         .flatten()
[INFO] [stdout]     |          ^^^^^^^ multiple `flatten` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `std::iter::Iterator` for the type `std::slice::Iter<'a, T>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `itertools::Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 260 |     std::iter::Iterator::flatten(vec![
[INFO] [stdout] 261 |         vec![searchpath.clone()],
[INFO] [stdout] 262 |         gen_vars(searchpath.clone(), variants.clone(), &modifier),
[INFO] [stdout] 263 | 
[INFO] [stdout] 264 |         env::var("HOME").map(|home| gen_vars(PathBuf::from(home), variants.clone(), &modifier))
[INFO] [stdout] 265 |                         .unwrap_or(vec![]),
[INFO] [stdout]   ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 260 |     itertools::Itertools::flatten(vec![
[INFO] [stdout] 261 |         vec![searchpath.clone()],
[INFO] [stdout] 262 |         gen_vars(searchpath.clone(), variants.clone(), &modifier),
[INFO] [stdout] 263 | 
[INFO] [stdout] 264 |         env::var("HOME").map(|home| gen_vars(PathBuf::from(home), variants.clone(), &modifier))
[INFO] [stdout] 265 |                         .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" "9b89070dbcd34cbb255470448a3bf0453e64b5eb03b11eabbf7ce6a2bbcc967b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b89070dbcd34cbb255470448a3bf0453e64b5eb03b11eabbf7ce6a2bbcc967b", kill_on_drop: false }`
[INFO] [stdout] 9b89070dbcd34cbb255470448a3bf0453e64b5eb03b11eabbf7ce6a2bbcc967b
