[INFO] crate preftool-dirs 0.2.0 is already in cache
[INFO] extracting crate preftool-dirs 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/preftool-dirs/0.2.0
[INFO] extracting crate preftool-dirs 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/preftool-dirs/0.2.0
[INFO] validating manifest of preftool-dirs-0.2.0 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 preftool-dirs-0.2.0 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 preftool-dirs-0.2.0
[INFO] finished frobbing preftool-dirs-0.2.0
[INFO] frobbed toml for preftool-dirs-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/preftool-dirs/0.2.0/Cargo.toml
[INFO] started frobbing preftool-dirs-0.2.0
[INFO] finished frobbing preftool-dirs-0.2.0
[INFO] frobbed toml for preftool-dirs-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/preftool-dirs/0.2.0/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 preftool-dirs-0.2.0 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-7/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/preftool-dirs/0.2.0:/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] bfacfdad41f916484287f7dde2ae5941cdbafdeaa6e39dd155e2d3e6a7b449c4
[INFO] running `"docker" "start" "-a" "bfacfdad41f916484287f7dde2ae5941cdbafdeaa6e39dd155e2d3e6a7b449c4"`
[INFO] [stderr]    Compiling dirs-sys v0.1.0
[INFO] [stderr]    Compiling caseless v0.2.1
[INFO] [stderr]    Compiling preftool v0.2.0
[INFO] [stderr]    Compiling preftool-dirs v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:262:60
[INFO] [stderr]     |
[INFO] [stderr] 262 |   fn serialize(&self, rec: &slog::Record, serializer: &mut slog::Serializer) -> slog::Result {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn slog::Serializer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:300:66
[INFO] [stderr]     |
[INFO] [stderr] 300 |     fn serialize(&self, rec: &Record, key: Key, serializer: &mut Serializer) -> Result {
[INFO] [stderr]     |                                                                  ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.33s
[INFO] running `"docker" "inspect" "bfacfdad41f916484287f7dde2ae5941cdbafdeaa6e39dd155e2d3e6a7b449c4"`
[INFO] running `"docker" "rm" "-f" "bfacfdad41f916484287f7dde2ae5941cdbafdeaa6e39dd155e2d3e6a7b449c4"`
[INFO] [stdout] bfacfdad41f916484287f7dde2ae5941cdbafdeaa6e39dd155e2d3e6a7b449c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/preftool-dirs/0.2.0:/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] d10a35505b91cdeede93f04909d587a59e763c63b8d63cb38c3b1791a615d659
[INFO] running `"docker" "start" "-a" "d10a35505b91cdeede93f04909d587a59e763c63b8d63cb38c3b1791a615d659"`
[INFO] [stderr]    Compiling preftool-dirs v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:262:60
[INFO] [stderr]     |
[INFO] [stderr] 262 |   fn serialize(&self, rec: &slog::Record, serializer: &mut slog::Serializer) -> slog::Result {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn slog::Serializer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:300:66
[INFO] [stderr]     |
[INFO] [stderr] 300 |     fn serialize(&self, rec: &Record, key: Key, serializer: &mut Serializer) -> Result {
[INFO] [stderr]     |                                                                  ^^^^^^^^^^ help: use `dyn`: `dyn Serializer`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "d10a35505b91cdeede93f04909d587a59e763c63b8d63cb38c3b1791a615d659"`
[INFO] running `"docker" "rm" "-f" "d10a35505b91cdeede93f04909d587a59e763c63b8d63cb38c3b1791a615d659"`
[INFO] [stdout] d10a35505b91cdeede93f04909d587a59e763c63b8d63cb38c3b1791a615d659
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/preftool-dirs/0.2.0:/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] a4a22867fe3660cd78be59904c5a0f4a304585874976d3b5a77a18a301570c07
[INFO] running `"docker" "start" "-a" "a4a22867fe3660cd78be59904c5a0f4a304585874976d3b5a77a18a301570c07"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/preftool_dirs-ae8985644363b25a
[INFO] [stderr]    Doc-tests preftool-dirs
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lin::tests::test_trim_and_lowercase_then_replace_spaces ... 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 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" "a4a22867fe3660cd78be59904c5a0f4a304585874976d3b5a77a18a301570c07"`
[INFO] running `"docker" "rm" "-f" "a4a22867fe3660cd78be59904c5a0f4a304585874976d3b5a77a18a301570c07"`
[INFO] [stdout] a4a22867fe3660cd78be59904c5a0f4a304585874976d3b5a77a18a301570c07