[INFO] crate bit_manager_derive 0.1.1 is already in cache
[INFO] extracting crate bit_manager_derive 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/bit_manager_derive/0.1.1
[INFO] extracting crate bit_manager_derive 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bit_manager_derive/0.1.1
[INFO] validating manifest of bit_manager_derive-0.1.1 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 bit_manager_derive-0.1.1 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 bit_manager_derive-0.1.1
[INFO] finished frobbing bit_manager_derive-0.1.1
[INFO] frobbed toml for bit_manager_derive-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/bit_manager_derive/0.1.1/Cargo.toml
[INFO] started frobbing bit_manager_derive-0.1.1
[INFO] finished frobbing bit_manager_derive-0.1.1
[INFO] frobbed toml for bit_manager_derive-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bit_manager_derive/0.1.1/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 bit_manager_derive-0.1.1 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-7/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/bit_manager_derive/0.1.1:/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] 8713e44439b1de4584fd8dcc04219f6d2099fdbad5f77b9e2e363829ff2debe0
[INFO] running `"docker" "start" "-a" "8713e44439b1de4584fd8dcc04219f6d2099fdbad5f77b9e2e363829ff2debe0"`
[INFO] [stderr]    Compiling bit_manager v0.5.3
[INFO] [stderr]    Compiling bit_manager_derive v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:412:9
[INFO] [stderr]     |
[INFO] [stderr] 412 |     for mut ty_param in params {
[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 3.58s
[INFO] running `"docker" "inspect" "8713e44439b1de4584fd8dcc04219f6d2099fdbad5f77b9e2e363829ff2debe0"`
[INFO] running `"docker" "rm" "-f" "8713e44439b1de4584fd8dcc04219f6d2099fdbad5f77b9e2e363829ff2debe0"`
[INFO] [stdout] 8713e44439b1de4584fd8dcc04219f6d2099fdbad5f77b9e2e363829ff2debe0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/bit_manager_derive/0.1.1:/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] bd1b432cfc2f7004db0c680f33f10db998881989cade21906e5fa61de75b4776
[INFO] running `"docker" "start" "-a" "bd1b432cfc2f7004db0c680f33f10db998881989cade21906e5fa61de75b4776"`
[INFO] [stderr]    Compiling bit_manager_derive v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:412:9
[INFO] [stderr]     |
[INFO] [stderr] 412 |     for mut ty_param in params {
[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 0.36s
[INFO] running `"docker" "inspect" "bd1b432cfc2f7004db0c680f33f10db998881989cade21906e5fa61de75b4776"`
[INFO] running `"docker" "rm" "-f" "bd1b432cfc2f7004db0c680f33f10db998881989cade21906e5fa61de75b4776"`
[INFO] [stdout] bd1b432cfc2f7004db0c680f33f10db998881989cade21906e5fa61de75b4776
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/bit_manager_derive/0.1.1:/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] 9e1fcee63004290eb78ad1cfa82fea69cd1bc1405e01e12919ff14c0d448e75f
[INFO] running `"docker" "start" "-a" "9e1fcee63004290eb78ad1cfa82fea69cd1bc1405e01e12919ff14c0d448e75f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bit_manager_derive-b00c1374b63253c4
[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]    Doc-tests bit_manager_derive
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 75) ... ok
[INFO] [stdout] test src/lib.rs -  (line 5) ... ok
[INFO] [stdout] test src/lib.rs -  (line 23) ... 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" "9e1fcee63004290eb78ad1cfa82fea69cd1bc1405e01e12919ff14c0d448e75f"`
[INFO] running `"docker" "rm" "-f" "9e1fcee63004290eb78ad1cfa82fea69cd1bc1405e01e12919ff14c0d448e75f"`
[INFO] [stdout] 9e1fcee63004290eb78ad1cfa82fea69cd1bc1405e01e12919ff14c0d448e75f