[INFO] crate fpool 0.4.0 is already in cache
[INFO] extracting crate fpool 0.4.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/fpool/0.4.0
[INFO] extracting crate fpool 0.4.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fpool/0.4.0
[INFO] validating manifest of fpool-0.4.0 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 fpool-0.4.0 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 fpool-0.4.0
[INFO] finished frobbing fpool-0.4.0
[INFO] frobbed toml for fpool-0.4.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/fpool/0.4.0/Cargo.toml
[INFO] started frobbing fpool-0.4.0
[INFO] finished frobbing fpool-0.4.0
[INFO] frobbed toml for fpool-0.4.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fpool/0.4.0/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 fpool-0.4.0 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fpool/0.4.0:/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] b039e881512ae1f6dbddc6e0f3bbed766e32f952e0e904ea24d573b6d55f41fd
[INFO] running `"docker" "start" "-a" "b039e881512ae1f6dbddc6e0f3bbed766e32f952e0e904ea24d573b6d55f41fd"`
[INFO] [stderr]    Compiling fpool v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/pool/mod.rs:9:40
[INFO] [stderr]   |
[INFO] [stderr] 9 | type BoxedConstructor<T, TError> = Box<Fn() -> Result<T, TError>>;
[INFO] [stderr]   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Result<T, TError>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "b039e881512ae1f6dbddc6e0f3bbed766e32f952e0e904ea24d573b6d55f41fd"`
[INFO] running `"docker" "rm" "-f" "b039e881512ae1f6dbddc6e0f3bbed766e32f952e0e904ea24d573b6d55f41fd"`
[INFO] [stdout] b039e881512ae1f6dbddc6e0f3bbed766e32f952e0e904ea24d573b6d55f41fd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fpool/0.4.0:/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] a0497162060a98cc2c65f9f76e853b05688a21d011360c41daad64a26bb166b2
[INFO] running `"docker" "start" "-a" "a0497162060a98cc2c65f9f76e853b05688a21d011360c41daad64a26bb166b2"`
[INFO] [stderr]    Compiling fpool v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/pool/mod.rs:9:40
[INFO] [stderr]   |
[INFO] [stderr] 9 | type BoxedConstructor<T, TError> = Box<Fn() -> Result<T, TError>>;
[INFO] [stderr]   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Result<T, TError>`
[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" "a0497162060a98cc2c65f9f76e853b05688a21d011360c41daad64a26bb166b2"`
[INFO] running `"docker" "rm" "-f" "a0497162060a98cc2c65f9f76e853b05688a21d011360c41daad64a26bb166b2"`
[INFO] [stdout] a0497162060a98cc2c65f9f76e853b05688a21d011360c41daad64a26bb166b2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fpool/0.4.0:/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] 09c9f7b8318ea4b46bb67d1309ea0fb277c873304c86b27aa9d99409260afaff
[INFO] running `"docker" "start" "-a" "09c9f7b8318ea4b46bb67d1309ea0fb277c873304c86b27aa9d99409260afaff"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fpool-c5aeb81408edbc0d
[INFO] [stderr]    Doc-tests fpool
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test pool::round_robin_pool::tests::works_in_round_robin_fashion ... ok
[INFO] [stdout] test pool::round_robin_pool::tests::refills_items_as_expected ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs -  (line 19) ... ok
[INFO] [stdout] test src/lib.rs -  (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "09c9f7b8318ea4b46bb67d1309ea0fb277c873304c86b27aa9d99409260afaff"`
[INFO] running `"docker" "rm" "-f" "09c9f7b8318ea4b46bb67d1309ea0fb277c873304c86b27aa9d99409260afaff"`
[INFO] [stdout] 09c9f7b8318ea4b46bb67d1309ea0fb277c873304c86b27aa9d99409260afaff