[INFO] fetching crate imag-documentation 0.2.0...
[INFO] testing imag-documentation-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate imag-documentation 0.2.0 into /workspace/builds/worker-98/source
[INFO] validating manifest of crates.io crate imag-documentation 0.2.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-98/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 559ad3c43ff92b46adf03c17fd612181223ece98ad53fe135a4e824de292d298
[INFO] running `Command { std: "docker" "start" "-a" "559ad3c43ff92b46adf03c17fd612181223ece98ad53fe135a4e824de292d298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "559ad3c43ff92b46adf03c17fd612181223ece98ad53fe135a4e824de292d298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "559ad3c43ff92b46adf03c17fd612181223ece98ad53fe135a4e824de292d298", kill_on_drop: false }`
[INFO] [stdout] 559ad3c43ff92b46adf03c17fd612181223ece98ad53fe135a4e824de292d298
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f20689c57e0201f53927b2c28726df5404d285a3f40b1bee62c3834f0c16dd4
[INFO] running `Command { std: "docker" "start" "-a" "2f20689c57e0201f53927b2c28726df5404d285a3f40b1bee62c3834f0c16dd4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling ansi_term v0.7.5
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling lazy_static v0.1.16
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling version v2.0.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling itertools v0.4.19
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling encode_unicode v0.1.3
[INFO] [stderr]    Compiling filters v0.1.1
[INFO] [stderr]    Compiling bitflags v0.1.1
[INFO] [stderr]    Compiling xdg-basedir v0.2.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling libimagerror v0.2.0
[INFO] [stderr]    Compiling semver v0.2.3
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]    Compiling term v0.2.14
[INFO] [stderr]    Compiling openssl-sys v0.7.17
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling hoedown v5.0.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling spinner v0.4.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling termios v0.3.3
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling idna v0.1.5
[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]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling interactor v0.1.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling csv v0.15.0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling prettytable-rs v0.6.7
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling libimagutil v0.2.0
[INFO] [stderr]    Compiling rustyline v1.0.0
[INFO] [stderr]    Compiling libimagstore v0.2.0
[INFO] [stderr]    Compiling libimagentrymarkdown v0.2.0
[INFO] [stderr]    Compiling libimagcounter v0.2.0
[INFO] [stderr]    Compiling libimagentrytag v0.2.0
[INFO] [stderr]    Compiling libimagentrylist v0.2.0
[INFO] [stderr]    Compiling libimagtimeui v0.2.0
[INFO] [stderr]    Compiling libimagentryfilter v0.2.0
[INFO] [stderr]    Compiling libimaginteraction v0.2.0
[INFO] [stderr]    Compiling libimagentrylink v0.2.0
[INFO] [stderr]    Compiling 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] [stderr] error: could not compile `libimagref` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2f20689c57e0201f53927b2c28726df5404d285a3f40b1bee62c3834f0c16dd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f20689c57e0201f53927b2c28726df5404d285a3f40b1bee62c3834f0c16dd4", kill_on_drop: false }`
[INFO] [stdout] 2f20689c57e0201f53927b2c28726df5404d285a3f40b1bee62c3834f0c16dd4