[INFO] crate rust-iteratorcomprehensions 0.3.4 is already in cache
[INFO] testing rust-iteratorcomprehensions-0.3.4 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate rust-iteratorcomprehensions 0.3.4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate rust-iteratorcomprehensions 0.3.4 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 843cd04ea11f4fca7fe55de81a2bcaba25a7c0b7902ea14534acabfa7f6c2a65
[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" "843cd04ea11f4fca7fe55de81a2bcaba25a7c0b7902ea14534acabfa7f6c2a65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "843cd04ea11f4fca7fe55de81a2bcaba25a7c0b7902ea14534acabfa7f6c2a65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "843cd04ea11f4fca7fe55de81a2bcaba25a7c0b7902ea14534acabfa7f6c2a65", kill_on_drop: false }`
[INFO] [stdout] 843cd04ea11f4fca7fe55de81a2bcaba25a7c0b7902ea14534acabfa7f6c2a65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] d8998e3ced2f3c90339f51986487df015685caf10255ac31fb15c31b9e440a09
[INFO] running `Command { std: "docker" "start" "-a" "d8998e3ced2f3c90339f51986487df015685caf10255ac31fb15c31b9e440a09", 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" "d8998e3ced2f3c90339f51986487df015685caf10255ac31fb15c31b9e440a09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8998e3ced2f3c90339f51986487df015685caf10255ac31fb15c31b9e440a09", kill_on_drop: false }`
[INFO] [stdout] d8998e3ced2f3c90339f51986487df015685caf10255ac31fb15c31b9e440a09