[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 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-1/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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 3e3abc8c762f5621a65f68a59cd6e57455001fa4f3f3e463b16388c6540bdc06
[INFO] running `"docker" "start" "-a" "3e3abc8c762f5621a65f68a59cd6e57455001fa4f3f3e463b16388c6540bdc06"`
[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 0.41s
[INFO] running `"docker" "inspect" "3e3abc8c762f5621a65f68a59cd6e57455001fa4f3f3e463b16388c6540bdc06"`
[INFO] running `"docker" "rm" "-f" "3e3abc8c762f5621a65f68a59cd6e57455001fa4f3f3e463b16388c6540bdc06"`
[INFO] [stdout] 3e3abc8c762f5621a65f68a59cd6e57455001fa4f3f3e463b16388c6540bdc06
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4049003bde5112de54ca8f46f22892d6c4621c2a54e83f7e26dedfb49e502c2c
[INFO] running `"docker" "start" "-a" "4049003bde5112de54ca8f46f22892d6c4621c2a54e83f7e26dedfb49e502c2c"`
[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 0.86s
[INFO] running `"docker" "inspect" "4049003bde5112de54ca8f46f22892d6c4621c2a54e83f7e26dedfb49e502c2c"`
[INFO] running `"docker" "rm" "-f" "4049003bde5112de54ca8f46f22892d6c4621c2a54e83f7e26dedfb49e502c2c"`
[INFO] [stdout] 4049003bde5112de54ca8f46f22892d6c4621c2a54e83f7e26dedfb49e502c2c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 1702545ae1ec85a1a178dc327358457b5b3a7b15e855c0f278bc81ffc654cadb
[INFO] running `"docker" "start" "-a" "1702545ae1ec85a1a178dc327358457b5b3a7b15e855c0f278bc81ffc654cadb"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/atomic_refcell-b42979fea5e58f20
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/basic-dddfde42bc588823
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test immutable ... ok
[INFO] [stdout] test interleaved ... ok
[INFO] [stdout] test get_mut ... ok
[INFO] [stdout] test mutable ... ok
[INFO] [stdout] test map_mut ... ok
[INFO] [stdout] test map ... ok
[INFO] [stdout] test mutable_then_immutable ... ok
[INFO] [stdout] test double_mutable ... ok
[INFO] [stdout] test immutable_then_mutable ... 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" "1702545ae1ec85a1a178dc327358457b5b3a7b15e855c0f278bc81ffc654cadb"`
[INFO] running `"docker" "rm" "-f" "1702545ae1ec85a1a178dc327358457b5b3a7b15e855c0f278bc81ffc654cadb"`
[INFO] [stdout] 1702545ae1ec85a1a178dc327358457b5b3a7b15e855c0f278bc81ffc654cadb