[INFO] updating cached repository gnunicorn/safe_proxy
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gnunicorn/safe_proxy
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gnunicorn/safe_proxy" "work/ex/beta-1.38-1/sources/1.37.0/gh/gnunicorn/safe_proxy"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gnunicorn/safe_proxy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gnunicorn/safe_proxy" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnunicorn/safe_proxy"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnunicorn/safe_proxy'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 388f8fd1854986ecec4ee20a406b0f59cd912c25
[INFO] sha for GitHub repo gnunicorn/safe_proxy: 388f8fd1854986ecec4ee20a406b0f59cd912c25
[INFO] validating manifest of gnunicorn/safe_proxy 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 gnunicorn/safe_proxy 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 gnunicorn/safe_proxy
[INFO] finished frobbing gnunicorn/safe_proxy
[INFO] frobbed toml for gnunicorn/safe_proxy written to work/ex/beta-1.38-1/sources/1.37.0/gh/gnunicorn/safe_proxy/Cargo.toml
[INFO] started frobbing gnunicorn/safe_proxy
[INFO] finished frobbing gnunicorn/safe_proxy
[INFO] frobbed toml for gnunicorn/safe_proxy written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnunicorn/safe_proxy/Cargo.toml
[INFO] crate gnunicorn/safe_proxy already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: parsed version requirement `0.2*` is no longer valid
[INFO] [stderr] 
[INFO] [stderr] Previous versions of Cargo accepted this malformed requirement,
[INFO] [stderr] but it is being deprecated. This was found when parsing the manifest
[INFO] [stderr] of iron 0.2.6, and the correct version requirement is `0.2.*`.
[INFO] [stderr] 
[INFO] [stderr] This will soon become a hard error, so it's either recommended to
[INFO] [stderr] update to a fixed version or contact the upstream maintainer about
[INFO] [stderr] this warning.
[INFO] [stderr] 
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: parsed version requirement `0.2*` is no longer valid
[INFO] [stderr] 
[INFO] [stderr] Previous versions of Cargo accepted this malformed requirement,
[INFO] [stderr] but it is being deprecated. This was found when parsing the manifest
[INFO] [stderr] of iron 0.2.6, and the correct version requirement is `0.2.*`.
[INFO] [stderr] 
[INFO] [stderr] This will soon become a hard error, so it's either recommended to
[INFO] [stderr] update to a fixed version or contact the upstream maintainer about
[INFO] [stderr] this warning.
[INFO] [stderr] 
[INFO] testing gnunicorn/safe_proxy against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gnunicorn/safe_proxy:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d0049e3ef24e0d187991353b46d9fc7a6be1abc213469bd30bf36f04f346d368
[INFO] running `"docker" "start" "-a" "d0049e3ef24e0d187991353b46d9fc7a6be1abc213469bd30bf36f04f346d368"`
[INFO] [stderr] warning: parsed version requirement `0.2*` is no longer valid
[INFO] [stderr] 
[INFO] [stderr] Previous versions of Cargo accepted this malformed requirement,
[INFO] [stderr] but it is being deprecated. This was found when parsing the manifest
[INFO] [stderr] of iron 0.2.6, and the correct version requirement is `0.2.*`.
[INFO] [stderr] 
[INFO] [stderr] This will soon become a hard error, so it's either recommended to
[INFO] [stderr] update to a fixed version or contact the upstream maintainer about
[INFO] [stderr] this warning.
[INFO] [stderr] 
[INFO] [stderr]    Compiling gcc v0.3.39
[INFO] [stderr]    Compiling itertools v0.4.19
[INFO] [stderr]    Compiling routing v0.27.1
[INFO] [stderr]    Compiling lru_time_cache v0.4.0
[INFO] [stderr]    Compiling lru_time_cache v0.5.0
[INFO] [stderr]    Compiling linked-hash-map v0.0.9
[INFO] [stderr]    Compiling route-recognizer v0.1.11
[INFO] [stderr]    Compiling filetime v0.1.10
[INFO] [stderr] error[E0658]: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/route-recognizer-0.1.11/src/nfa.rs:568:3
[INFO] [stderr]     |
[INFO] [stderr] 568 | #[bench]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/route-recognizer-0.1.11/src/nfa.rs:582:3
[INFO] [stderr]     |
[INFO] [stderr] 582 | #[bench]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/route-recognizer-0.1.11/src/nfa.rs:596:3
[INFO] [stderr]     |
[INFO] [stderr] 596 | #[bench]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/route-recognizer-0.1.11/src/lib.rs:303:3
[INFO] [stderr]     |
[INFO] [stderr] 303 | #[bench]
[INFO] [stderr]     |   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stderr] 
[INFO] [stderr]    Compiling xattr v0.1.10
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: Could not compile `route-recognizer`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d0049e3ef24e0d187991353b46d9fc7a6be1abc213469bd30bf36f04f346d368"`
[INFO] running `"docker" "rm" "-f" "d0049e3ef24e0d187991353b46d9fc7a6be1abc213469bd30bf36f04f346d368"`
[INFO] [stdout] d0049e3ef24e0d187991353b46d9fc7a6be1abc213469bd30bf36f04f346d368