[INFO] cloning 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" "clone" "--bare" "https://github.com/1011X/emily-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1011X%2Femily-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1011X%2Femily-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f442c17247e6039ddbe88b26072f60bf3cf0276
[INFO] testing 1011X/emily-rust against try#46592174fb13958bb9a2aa0d7af6c1224e1d7143 for pr-83796
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1011X%2Femily-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/1011X/emily-rust on toolchain 46592174fb13958bb9a2aa0d7af6c1224e1d7143
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+46592174fb13958bb9a2aa0d7af6c1224e1d7143" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-2/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" "+46592174fb13958bb9a2aa0d7af6c1224e1d7143" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+46592174fb13958bb9a2aa0d7af6c1224e1d7143" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bdce1592c4787ddb3f2616a16caf94d6dd1dad8a9691b5bb9a9227fca7a95ee
[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" "5bdce1592c4787ddb3f2616a16caf94d6dd1dad8a9691b5bb9a9227fca7a95ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bdce1592c4787ddb3f2616a16caf94d6dd1dad8a9691b5bb9a9227fca7a95ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bdce1592c4787ddb3f2616a16caf94d6dd1dad8a9691b5bb9a9227fca7a95ee", kill_on_drop: false }`
[INFO] [stdout] 5bdce1592c4787ddb3f2616a16caf94d6dd1dad8a9691b5bb9a9227fca7a95ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+46592174fb13958bb9a2aa0d7af6c1224e1d7143" "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] 8419771650a12b4af4ea3a5a558d330f5a4b09360d4f404f0d544a5a24042ed9
[INFO] running `Command { std: "docker" "start" "-a" "8419771650a12b4af4ea3a5a558d330f5a4b09360d4f404f0d544a5a24042ed9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[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" "8419771650a12b4af4ea3a5a558d330f5a4b09360d4f404f0d544a5a24042ed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8419771650a12b4af4ea3a5a558d330f5a4b09360d4f404f0d544a5a24042ed9", kill_on_drop: false }`
[INFO] [stdout] 8419771650a12b4af4ea3a5a558d330f5a4b09360d4f404f0d544a5a24042ed9