[INFO] crate waterbear-instruction-derive 0.1.0 is already in cache
[INFO] extracting crate waterbear-instruction-derive 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/waterbear-instruction-derive/0.1.0
[INFO] extracting crate waterbear-instruction-derive 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/waterbear-instruction-derive/0.1.0
[INFO] validating manifest of waterbear-instruction-derive-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 waterbear-instruction-derive-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 waterbear-instruction-derive-0.1.0
[INFO] finished frobbing waterbear-instruction-derive-0.1.0
[INFO] frobbed toml for waterbear-instruction-derive-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/waterbear-instruction-derive/0.1.0/Cargo.toml
[INFO] started frobbing waterbear-instruction-derive-0.1.0
[INFO] finished frobbing waterbear-instruction-derive-0.1.0
[INFO] frobbed toml for waterbear-instruction-derive-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/waterbear-instruction-derive/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] 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 waterbear-instruction-derive-0.1.0 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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/waterbear-instruction-derive/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] ba86a1ce672c0b71f19c2da363f792dd57880e6caad818cba40ab7d8a9f5ec3b
[INFO] running `"docker" "start" "-a" "ba86a1ce672c0b71f19c2da363f792dd57880e6caad818cba40ab7d8a9f5ec3b"`
[INFO] [stderr]    Compiling waterbear-instruction-derive v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:530:21
[INFO] [stderr]     |
[INFO] [stderr] 530 |                 let mut mask: u32 = make_mask(size) << ((high + 1) - size);
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `"docker" "inspect" "ba86a1ce672c0b71f19c2da363f792dd57880e6caad818cba40ab7d8a9f5ec3b"`
[INFO] running `"docker" "rm" "-f" "ba86a1ce672c0b71f19c2da363f792dd57880e6caad818cba40ab7d8a9f5ec3b"`
[INFO] [stdout] ba86a1ce672c0b71f19c2da363f792dd57880e6caad818cba40ab7d8a9f5ec3b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/waterbear-instruction-derive/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 17bb6e0aff11b37f6761eb0c488a6f6a21f9daef169693faf3c42cbef4131261
[INFO] running `"docker" "start" "-a" "17bb6e0aff11b37f6761eb0c488a6f6a21f9daef169693faf3c42cbef4131261"`
[INFO] [stderr]    Compiling waterbear-instruction-derive v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:530:21
[INFO] [stderr]     |
[INFO] [stderr] 530 |                 let mut mask: u32 = make_mask(size) << ((high + 1) - size);
[INFO] [stderr]     |                     ----^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `"docker" "inspect" "17bb6e0aff11b37f6761eb0c488a6f6a21f9daef169693faf3c42cbef4131261"`
[INFO] running `"docker" "rm" "-f" "17bb6e0aff11b37f6761eb0c488a6f6a21f9daef169693faf3c42cbef4131261"`
[INFO] [stdout] 17bb6e0aff11b37f6761eb0c488a6f6a21f9daef169693faf3c42cbef4131261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/waterbear-instruction-derive/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 41a80dabd57cac118663a7e4bfce634e600971a5aa37114fea90894d55d9e7d1
[INFO] running `"docker" "start" "-a" "41a80dabd57cac118663a7e4bfce634e600971a5aa37114fea90894d55d9e7d1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/waterbear_instruction_derive-c86311bf18aa113c
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_bit_combinations ... ok
[INFO] [stdout] test tests::test_combinations_to_bits ... ok
[INFO] [stdout] test tests::test_parse_bit_pattern ... ok
[INFO] [stdout] test tests::test_tokenize_bit_pattern ... ok
[INFO] [stdout] test tests::test_parse_bit_pattern2 ... ok
[INFO] [stdout] test tests::test_all_possible_opcodes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests waterbear-instruction-derive
[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" "41a80dabd57cac118663a7e4bfce634e600971a5aa37114fea90894d55d9e7d1"`
[INFO] running `"docker" "rm" "-f" "41a80dabd57cac118663a7e4bfce634e600971a5aa37114fea90894d55d9e7d1"`
[INFO] [stdout] 41a80dabd57cac118663a7e4bfce634e600971a5aa37114fea90894d55d9e7d1