[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-1.38-1/sources/1.37.0/reg/semantic-test-project/2.0.0
[INFO] extracting crate semantic-test-project 2.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/semantic-test-project/2.0.0
[INFO] validating manifest of semantic-test-project-2.0.0 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 semantic-test-project-2.0.0 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 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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/semantic-test-project/2.0.0/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 semantic-test-project-2.0.0 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/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] c6c2e39fdef57dd2b13d75ab5ed75df075373ad5501e7d4a917699a7417cacfe
[INFO] running `"docker" "start" "-a" "c6c2e39fdef57dd2b13d75ab5ed75df075373ad5501e7d4a917699a7417cacfe"`
[INFO] [stderr]    Compiling semantic-test-project v2.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "c6c2e39fdef57dd2b13d75ab5ed75df075373ad5501e7d4a917699a7417cacfe"`
[INFO] running `"docker" "rm" "-f" "c6c2e39fdef57dd2b13d75ab5ed75df075373ad5501e7d4a917699a7417cacfe"`
[INFO] [stdout] c6c2e39fdef57dd2b13d75ab5ed75df075373ad5501e7d4a917699a7417cacfe
[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/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b825fa22f1323809d5afc98633572b7f89540b96a068c66c5531cc7c94cf2adf
[INFO] running `"docker" "start" "-a" "b825fa22f1323809d5afc98633572b7f89540b96a068c66c5531cc7c94cf2adf"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "b825fa22f1323809d5afc98633572b7f89540b96a068c66c5531cc7c94cf2adf"`
[INFO] running `"docker" "rm" "-f" "b825fa22f1323809d5afc98633572b7f89540b96a068c66c5531cc7c94cf2adf"`
[INFO] [stdout] b825fa22f1323809d5afc98633572b7f89540b96a068c66c5531cc7c94cf2adf