[INFO] crate stackedconfig 0.1.2 is already in cache
[INFO] extracting crate stackedconfig 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/stackedconfig/0.1.2
[INFO] extracting crate stackedconfig 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/stackedconfig/0.1.2
[INFO] validating manifest of stackedconfig-0.1.2 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 stackedconfig-0.1.2 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 stackedconfig-0.1.2
[INFO] finished frobbing stackedconfig-0.1.2
[INFO] frobbed toml for stackedconfig-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/stackedconfig/0.1.2/Cargo.toml
[INFO] started frobbing stackedconfig-0.1.2
[INFO] finished frobbing stackedconfig-0.1.2
[INFO] frobbed toml for stackedconfig-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/stackedconfig/0.1.2/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 stackedconfig-0.1.2 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-4/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/stackedconfig/0.1.2:/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] b855dc48a3635da25f91e7b7f436526cfabc30ff8690a16778bdd9c8a053a790
[INFO] running `"docker" "start" "-a" "b855dc48a3635da25f91e7b7f436526cfabc30ff8690a16778bdd9c8a053a790"`
[INFO] [stderr]    Compiling stackedconfig v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/lib.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 80 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "b855dc48a3635da25f91e7b7f436526cfabc30ff8690a16778bdd9c8a053a790"`
[INFO] running `"docker" "rm" "-f" "b855dc48a3635da25f91e7b7f436526cfabc30ff8690a16778bdd9c8a053a790"`
[INFO] [stdout] b855dc48a3635da25f91e7b7f436526cfabc30ff8690a16778bdd9c8a053a790
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/stackedconfig/0.1.2:/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] be7a79ef77a597008cc385dc8bf211d0989e656759e6ae427f9223416fedeef4
[INFO] running `"docker" "start" "-a" "be7a79ef77a597008cc385dc8bf211d0989e656759e6ae427f9223416fedeef4"`
[INFO] [stderr]    Compiling stackedconfig v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "be7a79ef77a597008cc385dc8bf211d0989e656759e6ae427f9223416fedeef4"`
[INFO] running `"docker" "rm" "-f" "be7a79ef77a597008cc385dc8bf211d0989e656759e6ae427f9223416fedeef4"`
[INFO] [stdout] be7a79ef77a597008cc385dc8bf211d0989e656759e6ae427f9223416fedeef4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/stackedconfig/0.1.2:/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] 4c320fedd75cddd9bbf191fb236ce3cb5a87beec9fee25fa1b56041604712100
[INFO] running `"docker" "start" "-a" "4c320fedd75cddd9bbf191fb236ce3cb5a87beec9fee25fa1b56041604712100"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stackedconfig-e70588054d9cad00
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stackedconfig
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_lookup ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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 - Lookup (line 16) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Lookup (line 16) stdout ----
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `conf`
[INFO] [stdout]  --> src/lib.rs:18:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | conf.get("/foo/bar")      // Lookup::Found(1)
[INFO] [stdout]   |                     - expected one of `.`, `;`, `?`, `}`, or an operator here
[INFO] [stdout] 4 | conf.get("/foo/bar/baz")  // Lookup::Missing
[INFO] [stdout]   | ^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Lookup (line 16)
[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" "4c320fedd75cddd9bbf191fb236ce3cb5a87beec9fee25fa1b56041604712100"`
[INFO] running `"docker" "rm" "-f" "4c320fedd75cddd9bbf191fb236ce3cb5a87beec9fee25fa1b56041604712100"`
[INFO] [stdout] 4c320fedd75cddd9bbf191fb236ce3cb5a87beec9fee25fa1b56041604712100