[INFO] updating cached repository https://github.com/1011X/emily-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f442c17247e6039ddbe88b26072f60bf3cf0276
[INFO] testing 1011X/emily-rust against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1011X%2Femily-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/1011X/emily-rust on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/1011X/emily-rust
[INFO] finished tweaking git repo https://github.com/1011X/emily-rust
[INFO] tweaked toml for git repo https://github.com/1011X/emily-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/1011X/emily-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7966603fda22f35e765dc4bba2bfc1d224a24a0ef1af3976380fe251b3d5de2d
[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" "7966603fda22f35e765dc4bba2bfc1d224a24a0ef1af3976380fe251b3d5de2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7966603fda22f35e765dc4bba2bfc1d224a24a0ef1af3976380fe251b3d5de2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7966603fda22f35e765dc4bba2bfc1d224a24a0ef1af3976380fe251b3d5de2d", kill_on_drop: false }`
[INFO] [stdout] 7966603fda22f35e765dc4bba2bfc1d224a24a0ef1af3976380fe251b3d5de2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 537678972ef59f3b40cdc3c0cb0afd67a6c36405efe1507151792eb078f26bc2
[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" "537678972ef59f3b40cdc3c0cb0afd67a6c36405efe1507151792eb078f26bc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling emily-rust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `,`, `@`, `]`, or `|`, found `..`
[INFO] [stdout]    --> src/pretty.rs:288:18
[INFO] [stdout]     |
[INFO] [stdout] 288 |         [ref toks..] => format!("[{}; ...]", toks.join("; ")),
[INFO] [stdout]     |                  ^^ expected one of `,`, `@`, `]`, or `|`
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to bind the contents of the rest of the array pattern into `toks`, use `@`
[INFO] [stdout]     |
[INFO] [stdout] 288 |         [ref toks @ ..] => format!("[{}; ...]", toks.join("; ")),
[INFO] [stdout]     |                   ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `emily-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "537678972ef59f3b40cdc3c0cb0afd67a6c36405efe1507151792eb078f26bc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "537678972ef59f3b40cdc3c0cb0afd67a6c36405efe1507151792eb078f26bc2", kill_on_drop: false }`
[INFO] [stdout] 537678972ef59f3b40cdc3c0cb0afd67a6c36405efe1507151792eb078f26bc2