[INFO] fetching crate rust-iteratorcomprehensions 0.3.4...
[INFO] documenting rust-iteratorcomprehensions-0.3.4 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate rust-iteratorcomprehensions 0.3.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate rust-iteratorcomprehensions 0.3.4 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-iteratorcomprehensions 0.3.4
[INFO] finished tweaking crates.io crate rust-iteratorcomprehensions 0.3.4
[INFO] tweaked toml for crates.io crate rust-iteratorcomprehensions 0.3.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0af78b794a4d40260e4bfb8aed9fa31b48ee2d2212a01325bc4ec803d3ec1796
[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" "0af78b794a4d40260e4bfb8aed9fa31b48ee2d2212a01325bc4ec803d3ec1796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0af78b794a4d40260e4bfb8aed9fa31b48ee2d2212a01325bc4ec803d3ec1796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0af78b794a4d40260e4bfb8aed9fa31b48ee2d2212a01325bc4ec803d3ec1796", kill_on_drop: false }`
[INFO] [stdout] 0af78b794a4d40260e4bfb8aed9fa31b48ee2d2212a01325bc4ec803d3ec1796
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTDOCFLAGS=--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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ca3ecf3f33a8b409a561a0a0ad49b12fd696c20303918bfdabd315fe88f6029
[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" "0ca3ecf3f33a8b409a561a0a0ad49b12fd696c20303918bfdabd315fe88f6029", kill_on_drop: false }`
[INFO] [stderr]  Documenting rust-iteratorcomprehensions v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: `$map:expr` is followed by `for`, which is not allowed for `expr` fragments
[INFO] [stdout]   --> src/lib.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         for $var:ident in $gen:expr
[INFO] [stdout]    |         ^^^ not allowed after `expr` fragments
[INFO] [stdout]    |
[INFO] [stdout]    = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$gen:expr` may be followed by `for`, which is not allowed for `expr` fragments
[INFO] [stdout]   --> src/lib.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 |           for $vars:ident in $gens:expr
[INFO] [stdout]    |           ^^^ not allowed after `expr` fragments
[INFO] [stdout]    |
[INFO] [stdout]    = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$gens:expr` may be followed by `if`, which is not allowed for `expr` fragments
[INFO] [stdout]   --> src/lib.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |           $(if $filters:expr)*
[INFO] [stdout]    |             ^^ not allowed after `expr` fragments
[INFO] [stdout]    |
[INFO] [stdout]    = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$map:expr` is followed by `for`, which is not allowed for `expr` fragments
[INFO] [stdout]   --> src/lib.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         for $var:ident in $gen:expr
[INFO] [stdout]    |         ^^^ not allowed after `expr` fragments
[INFO] [stdout]    |
[INFO] [stdout]    = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$gen:expr` is followed by `if`, which is not allowed for `expr` fragments
[INFO] [stdout]   --> src/lib.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |         if $filter:expr
[INFO] [stdout]    |         ^^ not allowed after `expr` fragments
[INFO] [stdout]    |
[INFO] [stdout]    = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$filter:expr` may be followed by `for`, which is not allowed for `expr` fragments
[INFO] [stdout]   --> src/lib.rs:77:11
[INFO] [stdout]    |
[INFO] [stdout] 77 |           for $vars:ident in $gens:expr
[INFO] [stdout]    |           ^^^ not allowed after `expr` fragments
[INFO] [stdout]    |
[INFO] [stdout]    = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$gens:expr` may be followed by `if`, which is not allowed for `expr` fragments
[INFO] [stdout]   --> src/lib.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |           $(if $filters:expr)*
[INFO] [stdout]    |             ^^ not allowed after `expr` fragments
[INFO] [stdout]    |
[INFO] [stdout]    = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$map:expr` is followed by `for`, which is not allowed for `expr` fragments
[INFO] [stdout]    --> src/lib.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         for $var:ident in $gen:expr
[INFO] [stdout]     |         ^^^ not allowed after `expr` fragments
[INFO] [stdout]     |
[INFO] [stdout]     = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$gen:expr` may be followed by `for`, which is not allowed for `expr` fragments
[INFO] [stdout]    --> src/lib.rs:104:11
[INFO] [stdout]     |
[INFO] [stdout] 104 |           for $vars:ident in $gens:expr
[INFO] [stdout]     |           ^^^ not allowed after `expr` fragments
[INFO] [stdout]     |
[INFO] [stdout]     = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$gens:expr` may be followed by `if`, which is not allowed for `expr` fragments
[INFO] [stdout]    --> src/lib.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |           $(if $filters:expr)*
[INFO] [stdout]     |             ^^ not allowed after `expr` fragments
[INFO] [stdout]     |
[INFO] [stdout]     = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$map:expr` is followed by `for`, which is not allowed for `expr` fragments
[INFO] [stdout]    --> src/lib.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         for $var:ident in $gen:expr
[INFO] [stdout]     |         ^^^ not allowed after `expr` fragments
[INFO] [stdout]     |
[INFO] [stdout]     = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$gen:expr` is followed by `if`, which is not allowed for `expr` fragments
[INFO] [stdout]    --> src/lib.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         if $filter:expr
[INFO] [stdout]     |         ^^ not allowed after `expr` fragments
[INFO] [stdout]     |
[INFO] [stdout]     = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$filter:expr` may be followed by `for`, which is not allowed for `expr` fragments
[INFO] [stdout]    --> src/lib.rs:134:11
[INFO] [stdout]     |
[INFO] [stdout] 134 |           for $vars:ident in $gens:expr
[INFO] [stdout]     |           ^^^ not allowed after `expr` fragments
[INFO] [stdout]     |
[INFO] [stdout]     = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$gens:expr` may be followed by `if`, which is not allowed for `expr` fragments
[INFO] [stdout]    --> src/lib.rs:135:13
[INFO] [stdout]     |
[INFO] [stdout] 135 |           $(if $filters:expr)*
[INFO] [stdout]     |             ^^ not allowed after `expr` fragments
[INFO] [stdout]     |
[INFO] [stdout]     = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$map:expr` is followed by `for`, which is not allowed for `expr` fragments
[INFO] [stdout]    --> src/lib.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |         for $vars:ident in $gens:expr
[INFO] [stdout]     |         ^^^ not allowed after `expr` fragments
[INFO] [stdout]     |
[INFO] [stdout]     = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$gens:expr` is followed by `if`, which is not allowed for `expr` fragments
[INFO] [stdout]    --> src/lib.rs:209:11
[INFO] [stdout]     |
[INFO] [stdout] 209 |         $(if $filters:expr)*
[INFO] [stdout]     |           ^^ not allowed after `expr` fragments
[INFO] [stdout]     |
[INFO] [stdout]     = note: allowed there are: `=>`, `,` or `;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 17 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `rust-iteratorcomprehensions`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name iteratorcomprehensions src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "0ca3ecf3f33a8b409a561a0a0ad49b12fd696c20303918bfdabd315fe88f6029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca3ecf3f33a8b409a561a0a0ad49b12fd696c20303918bfdabd315fe88f6029", kill_on_drop: false }`
[INFO] [stdout] 0ca3ecf3f33a8b409a561a0a0ad49b12fd696c20303918bfdabd315fe88f6029