[INFO] crate rc_arena 0.1.0 is already in cache
[INFO] extracting crate rc_arena 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/rc_arena/0.1.0
[INFO] extracting crate rc_arena 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rc_arena/0.1.0
[INFO] validating manifest of rc_arena-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rc_arena-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rc_arena-0.1.0
[INFO] finished frobbing rc_arena-0.1.0
[INFO] frobbed toml for rc_arena-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rc_arena/0.1.0/Cargo.toml
[INFO] started frobbing rc_arena-0.1.0
[INFO] finished frobbing rc_arena-0.1.0
[INFO] frobbed toml for rc_arena-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rc_arena/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rc_arena-0.1.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rc_arena/0.1.0:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 3b3f37c1f503cad376b2c985bef22c14c123d2b79fabc298025b41d2c4ecb1c9
[INFO] running `"docker" "start" "-a" "3b3f37c1f503cad376b2c985bef22c14c123d2b79fabc298025b41d2c4ecb1c9"`
[INFO] [stderr]    Compiling rc_arena v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "3b3f37c1f503cad376b2c985bef22c14c123d2b79fabc298025b41d2c4ecb1c9"`
[INFO] running `"docker" "rm" "-f" "3b3f37c1f503cad376b2c985bef22c14c123d2b79fabc298025b41d2c4ecb1c9"`
[INFO] [stdout] 3b3f37c1f503cad376b2c985bef22c14c123d2b79fabc298025b41d2c4ecb1c9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rc_arena/0.1.0:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] aeb8339abf36882b3b5552e0f3522bf13fb5adb6ea59e17aee3a5b1678880f61
[INFO] running `"docker" "start" "-a" "aeb8339abf36882b3b5552e0f3522bf13fb5adb6ea59e17aee3a5b1678880f61"`
[INFO] [stderr]    Compiling rc_arena v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "aeb8339abf36882b3b5552e0f3522bf13fb5adb6ea59e17aee3a5b1678880f61"`
[INFO] running `"docker" "rm" "-f" "aeb8339abf36882b3b5552e0f3522bf13fb5adb6ea59e17aee3a5b1678880f61"`
[INFO] [stdout] aeb8339abf36882b3b5552e0f3522bf13fb5adb6ea59e17aee3a5b1678880f61
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rc_arena/0.1.0:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 482c91f24f5e1398164aa649b2167c212420acd5ad4e1ccb56c359a9d7bb8d4f
[INFO] running `"docker" "start" "-a" "482c91f24f5e1398164aa649b2167c212420acd5ad4e1ccb56c359a9d7bb8d4f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rc_arena-6f7fa5eca462c7d0
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test iterates ... ok
[INFO] [stdout] test basic_usecase ... ok
[INFO] [stdout] test formatting ... ok
[INFO] [stdout] test drops_at_once ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rc_arena
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Arena<T>::each (line 151) ... ok
[INFO] [stdout] test src/lib.rs -  (line 8) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::alloc (line 100) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "482c91f24f5e1398164aa649b2167c212420acd5ad4e1ccb56c359a9d7bb8d4f"`
[INFO] running `"docker" "rm" "-f" "482c91f24f5e1398164aa649b2167c212420acd5ad4e1ccb56c359a9d7bb8d4f"`
[INFO] [stdout] 482c91f24f5e1398164aa649b2167c212420acd5ad4e1ccb56c359a9d7bb8d4f