[INFO] crate async_value 0.2.4 is already in cache
[INFO] extracting crate async_value 0.2.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/async_value/0.2.4
[INFO] extracting crate async_value 0.2.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/async_value/0.2.4
[INFO] validating manifest of async_value-0.2.4 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 async_value-0.2.4 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 async_value-0.2.4
[INFO] finished frobbing async_value-0.2.4
[INFO] frobbed toml for async_value-0.2.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/async_value/0.2.4/Cargo.toml
[INFO] started frobbing async_value-0.2.4
[INFO] finished frobbing async_value-0.2.4
[INFO] frobbed toml for async_value-0.2.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/async_value/0.2.4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing async_value-0.2.4 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/async_value/0.2.4:/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] 8abaec7fb9ecf75d302c2b222c840dc0439e2000692e00c761e7c3fa6d26109d
[INFO] running `"docker" "start" "-a" "8abaec7fb9ecf75d302c2b222c840dc0439e2000692e00c761e7c3fa6d26109d"`
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling async_value v0.2.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:101:28
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub type AsyncValueFn<T> = FnOnce(&Stale) -> CResult<T> + Send + 'static;
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce(&Stale) -> CResult<T> + Send + 'static`
[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:102:28
[INFO] [stderr]     |
[INFO] [stderr] 102 |   pub type AsyncReadyFn<T> = FnOnce(Result<&mut T,
[INFO] [stderr]     |  ____________________________^
[INFO] [stderr] 103 | |                                          AError>,
[INFO] [stderr] 104 | |                                   &Stale)
[INFO] [stderr] 105 | |                                   -> CResult<()> + Send + 'static;
[INFO] [stderr]     | |_________________________________________________________________^
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub type AsyncReadyFn<T> = dyn FnOnce(Result<&mut T,
[INFO] [stderr] 103 |                                          AError>,
[INFO] [stderr] 104 |                                   &Stale)
[INFO] [stderr] 105 |                                   -> CResult<()> + Send + 'static;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.16s
[INFO] running `"docker" "inspect" "8abaec7fb9ecf75d302c2b222c840dc0439e2000692e00c761e7c3fa6d26109d"`
[INFO] running `"docker" "rm" "-f" "8abaec7fb9ecf75d302c2b222c840dc0439e2000692e00c761e7c3fa6d26109d"`
[INFO] [stdout] 8abaec7fb9ecf75d302c2b222c840dc0439e2000692e00c761e7c3fa6d26109d
[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/async_value/0.2.4:/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] 15c9b12ecc8aff90aef43cc4309f546ba023f3396646e25b3bc5455d825f5b94
[INFO] running `"docker" "start" "-a" "15c9b12ecc8aff90aef43cc4309f546ba023f3396646e25b3bc5455d825f5b94"`
[INFO] [stderr]    Compiling async_value v0.2.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:101:28
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub type AsyncValueFn<T> = FnOnce(&Stale) -> CResult<T> + Send + 'static;
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnOnce(&Stale) -> CResult<T> + Send + 'static`
[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:102:28
[INFO] [stderr]     |
[INFO] [stderr] 102 |   pub type AsyncReadyFn<T> = FnOnce(Result<&mut T,
[INFO] [stderr]     |  ____________________________^
[INFO] [stderr] 103 | |                                          AError>,
[INFO] [stderr] 104 | |                                   &Stale)
[INFO] [stderr] 105 | |                                   -> CResult<()> + Send + 'static;
[INFO] [stderr]     | |_________________________________________________________________^
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub type AsyncReadyFn<T> = dyn FnOnce(Result<&mut T,
[INFO] [stderr] 103 |                                          AError>,
[INFO] [stderr] 104 |                                   &Stale)
[INFO] [stderr] 105 |                                   -> CResult<()> + Send + 'static;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "15c9b12ecc8aff90aef43cc4309f546ba023f3396646e25b3bc5455d825f5b94"`
[INFO] running `"docker" "rm" "-f" "15c9b12ecc8aff90aef43cc4309f546ba023f3396646e25b3bc5455d825f5b94"`
[INFO] [stdout] 15c9b12ecc8aff90aef43cc4309f546ba023f3396646e25b3bc5455d825f5b94
[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/async_value/0.2.4:/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] 4b2b1911d566ec41f565b657a418c44e91769ba6aaf30f60ec26af38f658225e
[INFO] running `"docker" "start" "-a" "4b2b1911d566ec41f565b657a418c44e91769ba6aaf30f60ec26af38f658225e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/async_value-775a529eff1baf56
[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] [stderr]    Doc-tests async_value
[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" "4b2b1911d566ec41f565b657a418c44e91769ba6aaf30f60ec26af38f658225e"`
[INFO] running `"docker" "rm" "-f" "4b2b1911d566ec41f565b657a418c44e91769ba6aaf30f60ec26af38f658225e"`
[INFO] [stdout] 4b2b1911d566ec41f565b657a418c44e91769ba6aaf30f60ec26af38f658225e