[INFO] fetching crate imag-documentation 0.2.0...
[INFO] checking imag-documentation-0.2.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate imag-documentation 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate imag-documentation 0.2.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imag-documentation 0.2.0
[INFO] finished tweaking crates.io crate imag-documentation 0.2.0
[INFO] tweaked toml for crates.io crate imag-documentation 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libimagentrylink v0.2.0
[INFO] [stderr]   Downloaded libimagrt v0.2.0
[INFO] [stderr]   Downloaded libimagentryedit v0.2.0
[INFO] [stderr]   Downloaded libimagentrylist v0.2.0
[INFO] [stderr]   Downloaded libimagentrymarkdown v0.2.0
[INFO] [stderr]   Downloaded libimagnotes v0.2.0
[INFO] [stderr]   Downloaded spinner v0.4.0
[INFO] [stderr]   Downloaded libimaginteraction v0.2.0
[INFO] [stderr]   Downloaded libimagref v0.2.0
[INFO] [stderr]   Downloaded git2 v0.4.4
[INFO] [stderr]   Downloaded libimagbookmark v0.2.0
[INFO] [stderr]   Downloaded libimagcounter v0.2.0
[INFO] [stderr]   Downloaded libimagentrytag v0.2.0
[INFO] [stderr]   Downloaded libimagdiary v0.2.0
[INFO] [stderr]   Downloaded libimagstore v0.2.0
[INFO] [stderr]   Downloaded filters v0.1.1
[INFO] [stderr]   Downloaded libimagentryfilter v0.2.0
[INFO] [stderr]   Downloaded xdg-basedir v0.2.2
[INFO] [stderr]   Downloaded libimagentryview v0.2.0
[INFO] [stderr]   Downloaded libssh2-sys v0.1.41
[INFO] [stderr]   Downloaded libimagutil v0.2.0
[INFO] [stderr]   Downloaded libimagerror v0.2.0
[INFO] [stderr]   Downloaded version v2.0.1
[INFO] [stderr]   Downloaded libgit2-sys v0.4.6
[INFO] [stderr]   Downloaded libimagstorestdhook v0.2.0
[INFO] [stderr]   Downloaded libimagtimeui v0.2.0
[INFO] [stderr]   Downloaded hoedown v5.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0760c317d67b0ae6218c3c78cf1b2032fa978007ccb5801e71ca029304cd0828
[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" "0760c317d67b0ae6218c3c78cf1b2032fa978007ccb5801e71ca029304cd0828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0760c317d67b0ae6218c3c78cf1b2032fa978007ccb5801e71ca029304cd0828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0760c317d67b0ae6218c3c78cf1b2032fa978007ccb5801e71ca029304cd0828", kill_on_drop: false }`
[INFO] [stdout] 0760c317d67b0ae6218c3c78cf1b2032fa978007ccb5801e71ca029304cd0828
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--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] 46fda8adb50944120aa52450a9f0f70ae6abcf8cc06b4b5ceeefc1f08a749e73
[INFO] running `Command { std: "docker" "start" "-a" "46fda8adb50944120aa52450a9f0f70ae6abcf8cc06b4b5ceeefc1f08a749e73", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking ansi_term v0.7.5
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking version v2.0.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v1.3.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking filters v0.1.1
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking xdg-basedir v0.2.2
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]    Compiling openssl-sys v0.7.17
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling hoedown v5.0.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking semver v0.2.3
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking term v0.2.14
[INFO] [stderr]     Checking interactor v0.1.1
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking libimagerror v0.2.0
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking spinner v0.4.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libssh2-sys v0.1.41
[INFO] [stderr]    Compiling libgit2-sys v0.4.6
[INFO] [stderr]     Checking prettytable-rs v0.6.7
[INFO] [stderr]     Checking libimagutil v0.2.0
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking libimagstore v0.2.0
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking libimagentrymarkdown v0.2.0
[INFO] [stderr]     Checking libimagcounter v0.2.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking libimagentrytag v0.2.0
[INFO] [stderr]     Checking libimagentrylist v0.2.0
[INFO] [stderr]     Checking libimagentryfilter v0.2.0
[INFO] [stderr]     Checking libimaginteraction v0.2.0
[INFO] [stderr]     Checking libimagtimeui v0.2.0
[INFO] [stderr]     Checking libimagentrylink v0.2.0
[INFO] [stderr]     Checking libimagref v0.2.0
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libimagref-0.2.0/src/reference.rs:530:22
[INFO] [stdout]     |
[INFO] [stdout] 530 |                     .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 `Map<I, F>`
[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] 497 ~                 Iterator::flatten(search_roots
[INFO] [stdout] 498 +                     .unwrap_or(vec![PathBuf::from("/")])
[INFO] [stdout] 499 +                     .into_iter()
[INFO] [stdout] 500 +                     .map(|root| {
[INFO] [stdout] 501 +                         WalkDir::new(root)
[INFO] [stdout] 502 +                             .follow_links(false)
[INFO] [stdout]   ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 497 ~                 Itertools::flatten(search_roots
[INFO] [stdout] 498 +                     .unwrap_or(vec![PathBuf::from("/")])
[INFO] [stdout] 499 +                     .into_iter()
[INFO] [stdout] 500 +                     .map(|root| {
[INFO] [stdout] 501 +                         WalkDir::new(root)
[INFO] [stdout] 502 +                             .follow_links(false)
[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 `libimagref` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "46fda8adb50944120aa52450a9f0f70ae6abcf8cc06b4b5ceeefc1f08a749e73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46fda8adb50944120aa52450a9f0f70ae6abcf8cc06b4b5ceeefc1f08a749e73", kill_on_drop: false }`
[INFO] [stdout] 46fda8adb50944120aa52450a9f0f70ae6abcf8cc06b4b5ceeefc1f08a749e73