[INFO] fetching crate rust-iteratorcomprehensions 0.3.4...
[INFO] testing rust-iteratorcomprehensions-0.3.4 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate rust-iteratorcomprehensions 0.3.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rust-iteratorcomprehensions 0.3.4 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f37d64809e80fe638a341411b4dd77f3db1a7048343a286beb580c7561ac276b
[INFO] running `Command { std: "docker" "start" "-a" "f37d64809e80fe638a341411b4dd77f3db1a7048343a286beb580c7561ac276b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f37d64809e80fe638a341411b4dd77f3db1a7048343a286beb580c7561ac276b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f37d64809e80fe638a341411b4dd77f3db1a7048343a286beb580c7561ac276b", kill_on_drop: false }`
[INFO] [stdout] f37d64809e80fe638a341411b4dd77f3db1a7048343a286beb580c7561ac276b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab0cd9b9d888f2fd0ceb827b4b9c37f1c24d4daaca1a38206c511a4d7ec3476d
[INFO] running `Command { std: "docker" "start" "-a" "ab0cd9b9d888f2fd0ceb827b4b9c37f1c24d4daaca1a38206c511a4d7ec3476d", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-iteratorcomprehensions`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "ab0cd9b9d888f2fd0ceb827b4b9c37f1c24d4daaca1a38206c511a4d7ec3476d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab0cd9b9d888f2fd0ceb827b4b9c37f1c24d4daaca1a38206c511a4d7ec3476d", kill_on_drop: false }`
[INFO] [stdout] ab0cd9b9d888f2fd0ceb827b4b9c37f1c24d4daaca1a38206c511a4d7ec3476d