[INFO] crate dup 0.1.0 is already in cache
[INFO] extracting crate dup 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/dup/0.1.0
[INFO] extracting crate dup 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/dup/0.1.0
[INFO] validating manifest of dup-0.1.0 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 dup-0.1.0 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 dup-0.1.0
[INFO] finished frobbing dup-0.1.0
[INFO] frobbed toml for dup-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/dup/0.1.0/Cargo.toml
[INFO] started frobbing dup-0.1.0
[INFO] finished frobbing dup-0.1.0
[INFO] frobbed toml for dup-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/dup/0.1.0/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing dup-0.1.0 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-6/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/dup/0.1.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 23559b3038374f2f6246ab15792a969f1bf712308942446193c4d7f5dbe0e07d
[INFO] running `"docker" "start" "-a" "23559b3038374f2f6246ab15792a969f1bf712308942446193c4d7f5dbe0e07d"`
[INFO] [stderr]    Compiling dup v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `"docker" "inspect" "23559b3038374f2f6246ab15792a969f1bf712308942446193c4d7f5dbe0e07d"`
[INFO] running `"docker" "rm" "-f" "23559b3038374f2f6246ab15792a969f1bf712308942446193c4d7f5dbe0e07d"`
[INFO] [stdout] 23559b3038374f2f6246ab15792a969f1bf712308942446193c4d7f5dbe0e07d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/dup/0.1.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5b6ce6f3c6ec0d5a98535afa25d12d5c201dd2c427630af480f2ead060bb3d51
[INFO] running `"docker" "start" "-a" "5b6ce6f3c6ec0d5a98535afa25d12d5c201dd2c427630af480f2ead060bb3d51"`
[INFO] [stderr]    Compiling dup v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `"docker" "inspect" "5b6ce6f3c6ec0d5a98535afa25d12d5c201dd2c427630af480f2ead060bb3d51"`
[INFO] running `"docker" "rm" "-f" "5b6ce6f3c6ec0d5a98535afa25d12d5c201dd2c427630af480f2ead060bb3d51"`
[INFO] [stdout] 5b6ce6f3c6ec0d5a98535afa25d12d5c201dd2c427630af480f2ead060bb3d51
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/dup/0.1.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 73f294917e6aa2e8b07d8fc13d021006f32b799f567651ce79e6d3d16b8abe80
[INFO] running `"docker" "start" "-a" "73f294917e6aa2e8b07d8fc13d021006f32b799f567651ce79e6d3d16b8abe80"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dup-4d436047feb13aab
[INFO] [stderr]    Doc-tests dup
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Dup::new (line 25) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Dup::new (line 25) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `thread`
[INFO] [stdout]  --> src/lib.rs:26:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | thread::spawn(|| {
[INFO] [stdout]   | ^^^^^^ use of undeclared type or module `thread`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Dup::new (line 25)
[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" "73f294917e6aa2e8b07d8fc13d021006f32b799f567651ce79e6d3d16b8abe80"`
[INFO] running `"docker" "rm" "-f" "73f294917e6aa2e8b07d8fc13d021006f32b799f567651ce79e6d3d16b8abe80"`
[INFO] [stdout] 73f294917e6aa2e8b07d8fc13d021006f32b799f567651ce79e6d3d16b8abe80