[INFO] crate semantic-test-project 2.0.0 is already in cache
[INFO] extracting crate semantic-test-project 2.0.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/semantic-test-project/2.0.0
[INFO] extracting crate semantic-test-project 2.0.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/semantic-test-project/2.0.0
[INFO] validating manifest of semantic-test-project-2.0.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of semantic-test-project-2.0.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing semantic-test-project-2.0.0
[INFO] finished frobbing semantic-test-project-2.0.0
[INFO] frobbed toml for semantic-test-project-2.0.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/semantic-test-project/2.0.0/Cargo.toml
[INFO] started frobbing semantic-test-project-2.0.0
[INFO] finished frobbing semantic-test-project-2.0.0
[INFO] frobbed toml for semantic-test-project-2.0.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/semantic-test-project/2.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing semantic-test-project-2.0.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/semantic-test-project/2.0.0:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] bc3b58df66b2e134254e29c962aa1eb57acb511eab59c9ce148631975cafcc90
[INFO] running `"docker" "start" "-a" "bc3b58df66b2e134254e29c962aa1eb57acb511eab59c9ce148631975cafcc90"`
[INFO] [stderr]    Compiling semantic-test-project v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `"docker" "inspect" "bc3b58df66b2e134254e29c962aa1eb57acb511eab59c9ce148631975cafcc90"`
[INFO] running `"docker" "rm" "-f" "bc3b58df66b2e134254e29c962aa1eb57acb511eab59c9ce148631975cafcc90"`
[INFO] [stdout] bc3b58df66b2e134254e29c962aa1eb57acb511eab59c9ce148631975cafcc90
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/semantic-test-project/2.0.0:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] c4b9819901da66b2f2da158e2089a1dade14ef529ae317cfd97d8f2f7eb7d8b7
[INFO] running `"docker" "start" "-a" "c4b9819901da66b2f2da158e2089a1dade14ef529ae317cfd97d8f2f7eb7d8b7"`
[INFO] [stderr]    Compiling semantic-test-project v2.0.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0428]: the name `foo` is defined multiple times
[INFO] [stderr]   --> src/lib.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | pub fn foo() {
[INFO] [stderr]    | ------------ previous definition of the value `foo` here
[INFO] [stderr] ...
[INFO] [stderr] 17 | pub fn foo() {
[INFO] [stderr]    | ^^^^^^^^^^^^ `foo` redefined here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `foo` must be defined only once in the value namespace of this module
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0428`.
[INFO] [stderr] error: Could not compile `semantic-test-project`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c4b9819901da66b2f2da158e2089a1dade14ef529ae317cfd97d8f2f7eb7d8b7"`
[INFO] running `"docker" "rm" "-f" "c4b9819901da66b2f2da158e2089a1dade14ef529ae317cfd97d8f2f7eb7d8b7"`
[INFO] [stdout] c4b9819901da66b2f2da158e2089a1dade14ef529ae317cfd97d8f2f7eb7d8b7