[INFO] cloning repository https://github.com/ryanwilliams/wasm-bindgen-vec-bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryanwilliams/wasm-bindgen-vec-bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanwilliams%2Fwasm-bindgen-vec-bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanwilliams%2Fwasm-bindgen-vec-bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bbd2ad5bf26dedc6032df37313885ae9e04cc2d7
[INFO] checking ryanwilliams/wasm-bindgen-vec-bug against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanwilliams%2Fwasm-bindgen-vec-bug" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanwilliams/wasm-bindgen-vec-bug on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryanwilliams/wasm-bindgen-vec-bug
[INFO] finished tweaking git repo https://github.com/ryanwilliams/wasm-bindgen-vec-bug
[INFO] tweaked toml for git repo https://github.com/ryanwilliams/wasm-bindgen-vec-bug written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanwilliams/wasm-bindgen-vec-bug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", 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] a3433db927f8ac1a7e77e1a0ea941e9fc6adae9890e3f51653781a406c26b5f8
[INFO] running `Command { std: "docker" "start" "-a" "a3433db927f8ac1a7e77e1a0ea941e9fc6adae9890e3f51653781a406c26b5f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3433db927f8ac1a7e77e1a0ea941e9fc6adae9890e3f51653781a406c26b5f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3433db927f8ac1a7e77e1a0ea941e9fc6adae9890e3f51653781a406c26b5f8", kill_on_drop: false }`
[INFO] [stdout] a3433db927f8ac1a7e77e1a0ea941e9fc6adae9890e3f51653781a406c26b5f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd69d1c15348d4c7eca22284b2167df825481d1b9f37e381e28884b8f26e570a
[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" "cd69d1c15348d4c7eca22284b2167df825481d1b9f37e381e28884b8f26e570a", kill_on_drop: false }`
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.17
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling serde_derive v1.0.58
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.10
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.10
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.10
[INFO] [stderr]     Checking wasm-bindgen v0.2.10
[INFO] [stdout] error[E0635]: unknown feature `wasm_import_module`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/wasm-bindgen-0.2.10/src/lib.rs:8:31
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(use_extern_macros, wasm_import_module, try_reserve, unsize)]
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-bindgen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "cd69d1c15348d4c7eca22284b2167df825481d1b9f37e381e28884b8f26e570a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd69d1c15348d4c7eca22284b2167df825481d1b9f37e381e28884b8f26e570a", kill_on_drop: false }`
[INFO] [stdout] cd69d1c15348d4c7eca22284b2167df825481d1b9f37e381e28884b8f26e570a