[INFO] cloning repository https://github.com/seanlth/IRCBot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seanlth/IRCBot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanlth%2FIRCBot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanlth%2FIRCBot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6761905a3eb72067f827b5538e5c6e8b1e6d6767
[INFO] checking seanlth/IRCBot against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanlth%2FIRCBot" "/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/seanlth/IRCBot on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/seanlth/IRCBot
[INFO] finished tweaking git repo https://github.com/seanlth/IRCBot
[INFO] tweaked toml for git repo https://github.com/seanlth/IRCBot written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/seanlth/IRCBot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df3f9d5ff94b11f0e0df74112430a86992a8d0d86e1f58b4dc0412500644f013
[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" "df3f9d5ff94b11f0e0df74112430a86992a8d0d86e1f58b4dc0412500644f013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df3f9d5ff94b11f0e0df74112430a86992a8d0d86e1f58b4dc0412500644f013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df3f9d5ff94b11f0e0df74112430a86992a8d0d86e1f58b4dc0412500644f013", kill_on_drop: false }`
[INFO] [stdout] df3f9d5ff94b11f0e0df74112430a86992a8d0d86e1f58b4dc0412500644f013
[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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5f8afb6b420294e3c3182296b3604faf1e77923f574f9680e9010a49e8e724a
[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" "c5f8afb6b420294e3c3182296b3604faf1e77923f574f9680e9010a49e8e724a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.1.10
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.4
[INFO] [stderr]     Checking regex-syntax v0.2.2
[INFO] [stderr]     Checking memchr v0.1.6
[INFO] [stderr]    Compiling advapi32-sys v0.1.2
[INFO] [stderr]     Checking aho-corasick v0.3.2
[INFO] [stderr]     Checking rand v0.3.11
[INFO] [stderr]     Checking regex v0.1.41
[INFO] [stdout] error[E0446]: private type `SingleSearch` in public interface
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-0.1.41/src/prefix.rs:46:12
[INFO] [stdout]     |
[INFO] [stdout] 46  |     Single(SingleSearch),
[INFO] [stdout]     |            ^^^^^^^^^^^^ can't leak private type
[INFO] [stdout] ...
[INFO] [stdout] 169 | struct SingleSearch {
[INFO] [stdout]     | ------------------- `SingleSearch` declared as private
[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 E0446`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c5f8afb6b420294e3c3182296b3604faf1e77923f574f9680e9010a49e8e724a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5f8afb6b420294e3c3182296b3604faf1e77923f574f9680e9010a49e8e724a", kill_on_drop: false }`
[INFO] [stdout] c5f8afb6b420294e3c3182296b3604faf1e77923f574f9680e9010a49e8e724a