[INFO] cloning repository https://github.com/andrewyli/rust-madlibs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrewyli/rust-madlibs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewyli%2Frust-madlibs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewyli%2Frust-madlibs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a1f6b7e7c639896ff1d0b1950792a576fd28f2b
[INFO] testing andrewyli/rust-madlibs against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewyli%2Frust-madlibs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrewyli/rust-madlibs on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/andrewyli/rust-madlibs
[INFO] finished tweaking git repo https://github.com/andrewyli/rust-madlibs
[INFO] tweaked toml for git repo https://github.com/andrewyli/rust-madlibs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/andrewyli/rust-madlibs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 0c7ba511a52ecbea6e7542118ed0545335674dcc4ae671357d4bd96a0f743d1b
[INFO] running `Command { std: "docker" "start" "-a" "0c7ba511a52ecbea6e7542118ed0545335674dcc4ae671357d4bd96a0f743d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c7ba511a52ecbea6e7542118ed0545335674dcc4ae671357d4bd96a0f743d1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c7ba511a52ecbea6e7542118ed0545335674dcc4ae671357d4bd96a0f743d1b", kill_on_drop: false }`
[INFO] [stdout] 0c7ba511a52ecbea6e7542118ed0545335674dcc4ae671357d4bd96a0f743d1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1aaa956524707819c1fdd9f5b0d8bb5aac4a1c18de867a152ac1b89dfd0ab8f6
[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" "1aaa956524707819c1fdd9f5b0d8bb5aac4a1c18de867a152ac1b89dfd0ab8f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-madlibs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `regex_macros`
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate regex_macros;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[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 E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-madlibs`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1aaa956524707819c1fdd9f5b0d8bb5aac4a1c18de867a152ac1b89dfd0ab8f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aaa956524707819c1fdd9f5b0d8bb5aac4a1c18de867a152ac1b89dfd0ab8f6", kill_on_drop: false }`
[INFO] [stdout] 1aaa956524707819c1fdd9f5b0d8bb5aac4a1c18de867a152ac1b89dfd0ab8f6