[INFO] crate arenatree 0.1.3 is already in cache
[INFO] extracting crate arenatree 0.1.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/arenatree/0.1.3
[INFO] extracting crate arenatree 0.1.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/arenatree/0.1.3
[INFO] validating manifest of arenatree-0.1.3 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 arenatree-0.1.3 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 arenatree-0.1.3
[INFO] finished frobbing arenatree-0.1.3
[INFO] frobbed toml for arenatree-0.1.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/arenatree/0.1.3/Cargo.toml
[INFO] started frobbing arenatree-0.1.3
[INFO] finished frobbing arenatree-0.1.3
[INFO] frobbed toml for arenatree-0.1.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/arenatree/0.1.3/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] 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing arenatree-0.1.3 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/arenatree/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 9cd3bd1dc9c030b918a03c39cb84cc9483555fb16f0ed1e4d96800bb45d699fa
[INFO] running `"docker" "start" "-a" "9cd3bd1dc9c030b918a03c39cb84cc9483555fb16f0ed1e4d96800bb45d699fa"`
[INFO] [stderr]    Compiling arenatree v0.1.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "9cd3bd1dc9c030b918a03c39cb84cc9483555fb16f0ed1e4d96800bb45d699fa"`
[INFO] running `"docker" "rm" "-f" "9cd3bd1dc9c030b918a03c39cb84cc9483555fb16f0ed1e4d96800bb45d699fa"`
[INFO] [stdout] 9cd3bd1dc9c030b918a03c39cb84cc9483555fb16f0ed1e4d96800bb45d699fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/arenatree/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 01d2e6c4cdc7b1254773b924e784aa9553e9da3999fe2b1030dbe789b0d6d26b
[INFO] running `"docker" "start" "-a" "01d2e6c4cdc7b1254773b924e784aa9553e9da3999fe2b1030dbe789b0d6d26b"`
[INFO] [stderr]    Compiling arenatree v0.1.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "01d2e6c4cdc7b1254773b924e784aa9553e9da3999fe2b1030dbe789b0d6d26b"`
[INFO] running `"docker" "rm" "-f" "01d2e6c4cdc7b1254773b924e784aa9553e9da3999fe2b1030dbe789b0d6d26b"`
[INFO] [stdout] 01d2e6c4cdc7b1254773b924e784aa9553e9da3999fe2b1030dbe789b0d6d26b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/arenatree/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 36aa251c70568ecb7287d4de89c6af24cc4e0826fd328f2cb1ab439c9ef3c2a2
[INFO] running `"docker" "start" "-a" "36aa251c70568ecb7287d4de89c6af24cc4e0826fd328f2cb1ab439c9ef3c2a2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/arenatree-9607177f4f2da00e
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test arena::tests::it_should_return_node_ids ... ok
[INFO] [stdout] test arena::tests::it_should_not_return_node_ids_of_removed_elements ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arenatree
[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" "36aa251c70568ecb7287d4de89c6af24cc4e0826fd328f2cb1ab439c9ef3c2a2"`
[INFO] running `"docker" "rm" "-f" "36aa251c70568ecb7287d4de89c6af24cc4e0826fd328f2cb1ab439c9ef3c2a2"`
[INFO] [stdout] 36aa251c70568ecb7287d4de89c6af24cc4e0826fd328f2cb1ab439c9ef3c2a2