[INFO] updating cached repository hcs64/update_agent
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hcs64/update_agent
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hcs64/update_agent" "work/ex/beta-1.38-1/sources/1.37.0/gh/hcs64/update_agent"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hcs64/update_agent'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hcs64/update_agent" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hcs64/update_agent"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hcs64/update_agent'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dbd25e0575de72aef1c090eb8243363e2ad4f468
[INFO] sha for GitHub repo hcs64/update_agent: dbd25e0575de72aef1c090eb8243363e2ad4f468
[INFO] validating manifest of hcs64/update_agent on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hcs64/update_agent on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hcs64/update_agent
[INFO] removed path dependency bits from hcs64/update_agent
[INFO] finished frobbing hcs64/update_agent
[INFO] frobbed toml for hcs64/update_agent written to work/ex/beta-1.38-1/sources/1.37.0/gh/hcs64/update_agent/Cargo.toml
[INFO] started frobbing hcs64/update_agent
[INFO] removed path dependency bits from hcs64/update_agent
[INFO] finished frobbing hcs64/update_agent
[INFO] frobbed toml for hcs64/update_agent written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hcs64/update_agent/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hcs64/update_agent against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hcs64/update_agent:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 1a0859f8290e243235f0b4b17c04f6bbbf6da95d011dd7c9b343a3ade51f4a4c
[INFO] running `"docker" "start" "-a" "1a0859f8290e243235f0b4b17c04f6bbbf6da95d011dd7c9b343a3ade51f4a4c"`
[INFO] [stderr] warning: dependency (bits) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling bits v0.0.4
[INFO] [stderr] error[E0405]: cannot find trait `Int` in module `num`
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/bits-0.0.4/src/generic.rs:3:24
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub trait BitOps: num::Int {
[INFO] [stderr]   |                        ^^^ not found in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Int` in module `num`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/bits-0.0.4/src/generic.rs:254:14
[INFO] [stderr]     |
[INFO] [stderr] 254 | impl<T: num::Int> BitOps for T {}
[INFO] [stderr]     |              ^^^ not found in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/bits-0.0.4/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(core)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: Could not compile `bits`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1a0859f8290e243235f0b4b17c04f6bbbf6da95d011dd7c9b343a3ade51f4a4c"`
[INFO] running `"docker" "rm" "-f" "1a0859f8290e243235f0b4b17c04f6bbbf6da95d011dd7c9b343a3ade51f4a4c"`
[INFO] [stdout] 1a0859f8290e243235f0b4b17c04f6bbbf6da95d011dd7c9b343a3ade51f4a4c