[INFO] crate atomic_refcell 0.1.3 is already in cache
[INFO] extracting crate atomic_refcell 0.1.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/atomic_refcell/0.1.3
[INFO] extracting crate atomic_refcell 0.1.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/atomic_refcell/0.1.3
[INFO] validating manifest of atomic_refcell-0.1.3 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 atomic_refcell-0.1.3 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 atomic_refcell-0.1.3
[INFO] finished frobbing atomic_refcell-0.1.3
[INFO] frobbed toml for atomic_refcell-0.1.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/atomic_refcell/0.1.3/Cargo.toml
[INFO] started frobbing atomic_refcell-0.1.3
[INFO] finished frobbing atomic_refcell-0.1.3
[INFO] frobbed toml for atomic_refcell-0.1.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/atomic_refcell/0.1.3/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 atomic_refcell-0.1.3 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/atomic_refcell/0.1.3:/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] 5c8347284caacd6cc8cb508d806bbdda4cc871f224e157010bbedbad27433088
[INFO] running `"docker" "start" "-a" "5c8347284caacd6cc8cb508d806bbdda4cc871f224e157010bbedbad27433088"`
[INFO] [stderr]    Compiling atomic_refcell v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/lib.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         unsafe { self.value.into_inner() }
[INFO] [stderr]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "5c8347284caacd6cc8cb508d806bbdda4cc871f224e157010bbedbad27433088"`
[INFO] running `"docker" "rm" "-f" "5c8347284caacd6cc8cb508d806bbdda4cc871f224e157010bbedbad27433088"`
[INFO] [stdout] 5c8347284caacd6cc8cb508d806bbdda4cc871f224e157010bbedbad27433088
[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/atomic_refcell/0.1.3:/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] 6c591d84485856693c411a9ba855e247742606a75cfd156c7e6c2d684d81c7c9
[INFO] running `"docker" "start" "-a" "6c591d84485856693c411a9ba855e247742606a75cfd156c7e6c2d684d81c7c9"`
[INFO] [stderr]    Compiling atomic_refcell v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/lib.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         unsafe { self.value.into_inner() }
[INFO] [stderr]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_unsafe)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "6c591d84485856693c411a9ba855e247742606a75cfd156c7e6c2d684d81c7c9"`
[INFO] running `"docker" "rm" "-f" "6c591d84485856693c411a9ba855e247742606a75cfd156c7e6c2d684d81c7c9"`
[INFO] [stdout] 6c591d84485856693c411a9ba855e247742606a75cfd156c7e6c2d684d81c7c9
[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/atomic_refcell/0.1.3:/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] 783ce66367c0b59ce0f299c4ea54b110a23e6f6cc3479f6106bf7f6d62b77079
[INFO] running `"docker" "start" "-a" "783ce66367c0b59ce0f299c4ea54b110a23e6f6cc3479f6106bf7f6d62b77079"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/atomic_refcell-9b82f630515fc967
[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]      Running /opt/crater/target/debug/deps/basic-b4bf6ffa733b2770
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test map ... ok
[INFO] [stdout] test map_mut ... ok
[INFO] [stdout] test get_mut ... ok
[INFO] [stdout] test immutable ... ok
[INFO] [stdout] test interleaved ... ok
[INFO] [stdout] test mutable ... ok
[INFO] [stdout] test immutable_then_mutable ... ok
[INFO] [stdout] test double_mutable ... ok
[INFO] [stdout] test mutable_then_immutable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests atomic_refcell
[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" "783ce66367c0b59ce0f299c4ea54b110a23e6f6cc3479f6106bf7f6d62b77079"`
[INFO] running `"docker" "rm" "-f" "783ce66367c0b59ce0f299c4ea54b110a23e6f6cc3479f6106bf7f6d62b77079"`
[INFO] [stdout] 783ce66367c0b59ce0f299c4ea54b110a23e6f6cc3479f6106bf7f6d62b77079