[INFO] fetching crate testlib 0.1.5...
[INFO] testing testlib-0.1.5 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate testlib 0.1.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate testlib 0.1.5 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate testlib 0.1.5
[INFO] finished tweaking crates.io crate testlib 0.1.5
[INFO] tweaked toml for crates.io crate testlib 0.1.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate testlib 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "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] 059f045957c48e13839172aaeaaf2037fe4602dbc9d24d5a35bb3cdb84852772
[INFO] running `Command { std: "docker" "start" "-a" "059f045957c48e13839172aaeaaf2037fe4602dbc9d24d5a35bb3cdb84852772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "059f045957c48e13839172aaeaaf2037fe4602dbc9d24d5a35bb3cdb84852772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "059f045957c48e13839172aaeaaf2037fe4602dbc9d24d5a35bb3cdb84852772", kill_on_drop: false }`
[INFO] [stdout] 059f045957c48e13839172aaeaaf2037fe4602dbc9d24d5a35bb3cdb84852772
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19bb27d28d8ae71f02e1d97384d49f3ae595dbc1723789d7dce055a0a1edc915
[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" "19bb27d28d8ae71f02e1d97384d49f3ae595dbc1723789d7dce055a0a1edc915", kill_on_drop: false }`
[INFO] [stderr]    Compiling testlib v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "19bb27d28d8ae71f02e1d97384d49f3ae595dbc1723789d7dce055a0a1edc915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19bb27d28d8ae71f02e1d97384d49f3ae595dbc1723789d7dce055a0a1edc915", kill_on_drop: false }`
[INFO] [stdout] 19bb27d28d8ae71f02e1d97384d49f3ae595dbc1723789d7dce055a0a1edc915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--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] 4322de2b46182adac126a3b414ce8c877b4dcffbf7f529f5458d9d196219b19e
[INFO] running `Command { std: "docker" "start" "-a" "4322de2b46182adac126a3b414ce8c877b4dcffbf7f529f5458d9d196219b19e", kill_on_drop: false }`
[INFO] [stderr]    Compiling testlib v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `lib`
[INFO] [stdout]  --> examples/demo01.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate lib;
[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 `testlib`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4322de2b46182adac126a3b414ce8c877b4dcffbf7f529f5458d9d196219b19e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4322de2b46182adac126a3b414ce8c877b4dcffbf7f529f5458d9d196219b19e", kill_on_drop: false }`
[INFO] [stdout] 4322de2b46182adac126a3b414ce8c877b4dcffbf7f529f5458d9d196219b19e
