[INFO] crate nereond 0.3.0 is already in cache
[INFO] extracting crate nereond 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/nereond/0.3.0
[INFO] extracting crate nereond 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nereond/0.3.0
[INFO] validating manifest of nereond-0.3.0 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 nereond-0.3.0 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 nereond-0.3.0
[INFO] finished frobbing nereond-0.3.0
[INFO] frobbed toml for nereond-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/nereond/0.3.0/Cargo.toml
[INFO] started frobbing nereond-0.3.0
[INFO] finished frobbing nereond-0.3.0
[INFO] frobbed toml for nereond-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nereond/0.3.0/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] [stderr]     Blocking waiting for file lock on package cache
[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 nereond-0.3.0 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/nereond/0.3.0:/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] 39d2c3094034ce517ca57ee8c4e11aae5847b80e13b51bd7ffee63defb5a74b5
[INFO] running `"docker" "start" "-a" "39d2c3094034ce517ca57ee8c4e11aae5847b80e13b51bd7ffee63defb5a74b5"`
[INFO] [stderr]    Compiling nereon_derive v0.4.3
[INFO] [stderr]    Compiling stderrlog v0.4.1
[INFO] [stderr]    Compiling nereon v0.4.4
[INFO] [stderr]    Compiling nereond v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file.rs:86:32
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub fn parse_fileset(src: &mut io::Read) -> Result<HashMap<String, (File, Vec<u8>)>, String> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[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/distro.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn get_installer() -> Box<Fn(&str) -> bool> {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.74s
[INFO] running `"docker" "inspect" "39d2c3094034ce517ca57ee8c4e11aae5847b80e13b51bd7ffee63defb5a74b5"`
[INFO] running `"docker" "rm" "-f" "39d2c3094034ce517ca57ee8c4e11aae5847b80e13b51bd7ffee63defb5a74b5"`
[INFO] [stdout] 39d2c3094034ce517ca57ee8c4e11aae5847b80e13b51bd7ffee63defb5a74b5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/nereond/0.3.0:/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] 37fa1917554ec65d6910c91e745edc971b233ece0000990b4ed96392ccd69431
[INFO] running `"docker" "start" "-a" "37fa1917554ec65d6910c91e745edc971b233ece0000990b4ed96392ccd69431"`
[INFO] [stderr]    Compiling nereond v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/file.rs:86:32
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub fn parse_fileset(src: &mut io::Read) -> Result<HashMap<String, (File, Vec<u8>)>, String> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[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/distro.rs:40:27
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn get_installer() -> Box<Fn(&str) -> bool> {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) -> bool`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "37fa1917554ec65d6910c91e745edc971b233ece0000990b4ed96392ccd69431"`
[INFO] running `"docker" "rm" "-f" "37fa1917554ec65d6910c91e745edc971b233ece0000990b4ed96392ccd69431"`
[INFO] [stdout] 37fa1917554ec65d6910c91e745edc971b233ece0000990b4ed96392ccd69431
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/nereond/0.3.0:/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] b7a4e902b9eade8a7d68dde5b1e3885e649b227e234b48da714763ee5010e498
[INFO] running `"docker" "start" "-a" "b7a4e902b9eade8a7d68dde5b1e3885e649b227e234b48da714763ee5010e498"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nereond-6e4d7e64de27c2a0
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nereond-d267a832091d0656
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests nereond
[INFO] [stdout] test distro::tests::test_which ... 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] [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" "b7a4e902b9eade8a7d68dde5b1e3885e649b227e234b48da714763ee5010e498"`
[INFO] running `"docker" "rm" "-f" "b7a4e902b9eade8a7d68dde5b1e3885e649b227e234b48da714763ee5010e498"`
[INFO] [stdout] b7a4e902b9eade8a7d68dde5b1e3885e649b227e234b48da714763ee5010e498