[INFO] crate test_common 1.0.1 is already in cache
[INFO] extracting crate test_common 1.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/test_common/1.0.1
[INFO] extracting crate test_common 1.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/test_common/1.0.1
[INFO] validating manifest of test_common-1.0.1 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 test_common-1.0.1 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 test_common-1.0.1
[INFO] finished frobbing test_common-1.0.1
[INFO] frobbed toml for test_common-1.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/test_common/1.0.1/Cargo.toml
[INFO] started frobbing test_common-1.0.1
[INFO] finished frobbing test_common-1.0.1
[INFO] frobbed toml for test_common-1.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/test_common/1.0.1/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 test_common-1.0.1 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-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/test_common/1.0.1:/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] c1e5c3fb0866170180fbcdf6a7ae69ff646d4dbf95a2db16f282f8e1c6d33636
[INFO] running `"docker" "start" "-a" "c1e5c3fb0866170180fbcdf6a7ae69ff646d4dbf95a2db16f282f8e1c6d33636"`
[INFO] [stderr]    Compiling test_common v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "c1e5c3fb0866170180fbcdf6a7ae69ff646d4dbf95a2db16f282f8e1c6d33636"`
[INFO] running `"docker" "rm" "-f" "c1e5c3fb0866170180fbcdf6a7ae69ff646d4dbf95a2db16f282f8e1c6d33636"`
[INFO] [stdout] c1e5c3fb0866170180fbcdf6a7ae69ff646d4dbf95a2db16f282f8e1c6d33636
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/test_common/1.0.1:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3a130ea3fe17261bbe27b82d00c03e9750e11e2b160bffc90e7f0665c53cea27
[INFO] running `"docker" "start" "-a" "3a130ea3fe17261bbe27b82d00c03e9750e11e2b160bffc90e7f0665c53cea27"`
[INFO] [stderr]    Compiling test_common v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `test_folder_path` is never read
[INFO] [stderr]   --> src/fs/tmp.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let mut test_folder_path = PathBuf::from("/");
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `"docker" "inspect" "3a130ea3fe17261bbe27b82d00c03e9750e11e2b160bffc90e7f0665c53cea27"`
[INFO] running `"docker" "rm" "-f" "3a130ea3fe17261bbe27b82d00c03e9750e11e2b160bffc90e7f0665c53cea27"`
[INFO] [stdout] 3a130ea3fe17261bbe27b82d00c03e9750e11e2b160bffc90e7f0665c53cea27
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/test_common/1.0.1:/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" "test" "--frozen"`
[INFO] [stdout] e43cf832cb66f9926272c6b284d7658fa7265129d6cd089216039d73ea8d2165
[INFO] running `"docker" "start" "-a" "e43cf832cb66f9926272c6b284d7658fa7265129d6cd089216039d73ea8d2165"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_common-1b651cfae47d8e2d
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test fs::ops::tests::test_copy_files ... ok
[INFO] [stderr]    Doc-tests test_common
[INFO] [stdout] test fs::crypto::tests::test_hash_file ... ok
[INFO] [stdout] test fs::ops::tests::test_delete_existing_files ... ok
[INFO] [stdout] test fs::ops::tests::test_deleting_non_existing_files ... ok
[INFO] [stdout] test fs::ops::tests::test_delete_file ... ok
[INFO] [stdout] test fs::tmp::tests::test_create_test_environment ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/fs/tmp.rs - fs::tmp::TestEnvironment (line 13) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/fs/tmp.rs - fs::tmp::TestEnvironment (line 13) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `test_common::TestEnvironment`
[INFO] [stdout]  --> src/fs/tmp.rs:14:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use test_common::TestEnvironment;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `TestEnvironment` in the root
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/fs/tmp.rs - fs::tmp::TestEnvironment (line 13)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "e43cf832cb66f9926272c6b284d7658fa7265129d6cd089216039d73ea8d2165"`
[INFO] running `"docker" "rm" "-f" "e43cf832cb66f9926272c6b284d7658fa7265129d6cd089216039d73ea8d2165"`
[INFO] [stdout] e43cf832cb66f9926272c6b284d7658fa7265129d6cd089216039d73ea8d2165