[INFO] crate schemer 0.1.2 is already in cache
[INFO] extracting crate schemer 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/schemer/0.1.2
[INFO] extracting crate schemer 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/schemer/0.1.2
[INFO] validating manifest of schemer-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 schemer-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 schemer-0.1.2
[INFO] finished frobbing schemer-0.1.2
[INFO] frobbed toml for schemer-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/schemer/0.1.2/Cargo.toml
[INFO] started frobbing schemer-0.1.2
[INFO] finished frobbing schemer-0.1.2
[INFO] frobbed toml for schemer-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/schemer/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 schemer-0.1.2 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/schemer/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 1c383c41ac604d3b9ab6702a76f6ff3532ed66410b8e74239aeb1f2576a61132
[INFO] running `"docker" "start" "-a" "1c383c41ac604d3b9ab6702a76f6ff3532ed66410b8e74239aeb1f2576a61132"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling backtrace v0.3.35
[INFO] [stderr]    Compiling daggy v0.5.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling schemer v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.11s
[INFO] running `"docker" "inspect" "1c383c41ac604d3b9ab6702a76f6ff3532ed66410b8e74239aeb1f2576a61132"`
[INFO] running `"docker" "rm" "-f" "1c383c41ac604d3b9ab6702a76f6ff3532ed66410b8e74239aeb1f2576a61132"`
[INFO] [stdout] 1c383c41ac604d3b9ab6702a76f6ff3532ed66410b8e74239aeb1f2576a61132
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/schemer/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] cbb8bbf8f64e9f8a98be2b5af8fcc66bd3187fcf8fa3c1a1f9ac58c86db45bd3
[INFO] running `"docker" "start" "-a" "cbb8bbf8f64e9f8a98be2b5af8fcc66bd3187fcf8fa3c1a1f9ac58c86db45bd3"`
[INFO] [stderr]    Compiling schemer v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:382:30
[INFO] [stderr]     |
[INFO] [stderr] 382 |         type MigrationType = Migration;
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn Migration`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `"docker" "inspect" "cbb8bbf8f64e9f8a98be2b5af8fcc66bd3187fcf8fa3c1a1f9ac58c86db45bd3"`
[INFO] running `"docker" "rm" "-f" "cbb8bbf8f64e9f8a98be2b5af8fcc66bd3187fcf8fa3c1a1f9ac58c86db45bd3"`
[INFO] [stdout] cbb8bbf8f64e9f8a98be2b5af8fcc66bd3187fcf8fa3c1a1f9ac58c86db45bd3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/schemer/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 2247f4cd9d62f54b123f6b3fb79e648d20d5e836fb01888b6f7b1eefc87200f3
[INFO] running `"docker" "start" "-a" "2247f4cd9d62f54b123f6b3fb79e648d20d5e836fb01888b6f7b1eefc87200f3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/schemer-a70826d1f84e7f12
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_migration_chain ... ok
[INFO] [stdout] test tests::test_multi_component_dag ... ok
[INFO] [stdout] test tests::test_branching_dag ... ok
[INFO] [stdout] test tests::test_single_migration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests schemer
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/testing.rs - test_schemer_adapter (line 50) ... ignored
[INFO] [stdout] test src/lib.rs - migration (line 51) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2247f4cd9d62f54b123f6b3fb79e648d20d5e836fb01888b6f7b1eefc87200f3"`
[INFO] running `"docker" "rm" "-f" "2247f4cd9d62f54b123f6b3fb79e648d20d5e836fb01888b6f7b1eefc87200f3"`
[INFO] [stdout] 2247f4cd9d62f54b123f6b3fb79e648d20d5e836fb01888b6f7b1eefc87200f3