[INFO] crate jamal 0.1.0 is already in cache
[INFO] extracting crate jamal 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/jamal/0.1.0
[INFO] extracting crate jamal 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/jamal/0.1.0
[INFO] validating manifest of jamal-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 jamal-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 jamal-0.1.0
[INFO] finished frobbing jamal-0.1.0
[INFO] frobbed toml for jamal-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/jamal/0.1.0/Cargo.toml
[INFO] started frobbing jamal-0.1.0
[INFO] finished frobbing jamal-0.1.0
[INFO] frobbed toml for jamal-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/jamal/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] 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 jamal-0.1.0 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/jamal/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] aa35f9e67911beb70cff99b43628d34ae853debdfc3fb6cb917758837c4fc485
[INFO] running `"docker" "start" "-a" "aa35f9e67911beb70cff99b43628d34ae853debdfc3fb6cb917758837c4fc485"`
[INFO] [stderr]    Compiling serde_yaml v0.2.5
[INFO] [stderr]    Compiling jamal v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:31:32
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "aa35f9e67911beb70cff99b43628d34ae853debdfc3fb6cb917758837c4fc485"`
[INFO] running `"docker" "rm" "-f" "aa35f9e67911beb70cff99b43628d34ae853debdfc3fb6cb917758837c4fc485"`
[INFO] [stdout] aa35f9e67911beb70cff99b43628d34ae853debdfc3fb6cb917758837c4fc485
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/jamal/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e781b6aa86f81aed77bee2886d3327a1c60fed8d66a03f4d4356d3ecbb03d6b6
[INFO] running `"docker" "start" "-a" "e781b6aa86f81aed77bee2886d3327a1c60fed8d66a03f4d4356d3ecbb03d6b6"`
[INFO] [stderr]    Compiling jamal v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:31:32
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `"docker" "inspect" "e781b6aa86f81aed77bee2886d3327a1c60fed8d66a03f4d4356d3ecbb03d6b6"`
[INFO] running `"docker" "rm" "-f" "e781b6aa86f81aed77bee2886d3327a1c60fed8d66a03f4d4356d3ecbb03d6b6"`
[INFO] [stdout] e781b6aa86f81aed77bee2886d3327a1c60fed8d66a03f4d4356d3ecbb03d6b6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/jamal/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] e660618508454312ce131cfb1f7eaf3930e3b6d2c94eaa858bf63cefdbb3443e
[INFO] running `"docker" "start" "-a" "e660618508454312ce131cfb1f7eaf3930e3b6d2c94eaa858bf63cefdbb3443e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/jamal-62d89a4f65248951
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::json_null_to_yaml ... ok
[INFO] [stdout] test tests::json_bool_to_yaml ... ok
[INFO] [stdout] test tests::json_str_vec_to_yaml ... ok
[INFO] [stdout] test tests::json_obj_to_yaml ... ok
[INFO] [stdout] test tests::yaml_bool_to_json ... ok
[INFO] [stdout] test tests::yaml_null_to_json ... ok
[INFO] [stdout] test tests::yaml_obj_to_json ... ok
[INFO] [stdout] test tests::yaml_str_vec_to_json ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests jamal
[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] running `"docker" "inspect" "e660618508454312ce131cfb1f7eaf3930e3b6d2c94eaa858bf63cefdbb3443e"`
[INFO] running `"docker" "rm" "-f" "e660618508454312ce131cfb1f7eaf3930e3b6d2c94eaa858bf63cefdbb3443e"`
[INFO] [stdout] e660618508454312ce131cfb1f7eaf3930e3b6d2c94eaa858bf63cefdbb3443e