[INFO] crate novault 0.4.2 is already in cache
[INFO] extracting crate novault 0.4.2 into work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/reg/novault/0.4.2
[INFO] extracting crate novault 0.4.2 into work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/reg/novault/0.4.2
[INFO] validating manifest of novault-0.4.2 on toolchain master#2bde39b8edce6463e1c37f8a8082a875e7b536b1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of novault-0.4.2 on toolchain try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing novault-0.4.2
[INFO] finished frobbing novault-0.4.2
[INFO] frobbed toml for novault-0.4.2 written to work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/reg/novault/0.4.2/Cargo.toml
[INFO] started frobbing novault-0.4.2
[INFO] finished frobbing novault-0.4.2
[INFO] frobbed toml for novault-0.4.2 written to work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/reg/novault/0.4.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking novault-0.4.2 against master#2bde39b8edce6463e1c37f8a8082a875e7b536b1 for pr-57483
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57483/worker-4/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/reg/novault/0.4.2:/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=forbid" "-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" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8f065a1f8eb6b57e93dfac5060063c55153382417c49ebac3b22cf186dd5aad6
[INFO] running `"docker" "start" "-a" "8f065a1f8eb6b57e93dfac5060063c55153382417c49ebac3b22cf186dd5aad6"`
[INFO] [stderr]     Checking std_prelude v0.2.12
[INFO] [stderr]     Checking taken v0.1.1
[INFO] [stderr]     Checking strfmt v0.1.6
[INFO] [stderr]    Compiling enigo v0.0.11
[INFO] [stderr]    Compiling file-lock v0.0.17
[INFO] [stderr]     Checking tabwriter v1.1.0
[INFO] [stderr]    Compiling configure_derive v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking ctrlc v3.1.1
[INFO] [stderr]     Checking argon2rs v0.2.5
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking structopt v0.1.7
[INFO] [stderr]     Checking stfu8 v0.2.4
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking erased-serde v0.3.6
[INFO] [stderr]     Checking serde_json v1.0.34
[INFO] [stderr]     Checking ron v0.1.7
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking ergo_std v0.0.1
[INFO] [stderr]     Checking ergo_sys v0.0.1
[INFO] [stderr]     Checking crossbeam-channel v0.1.3
[INFO] [stderr]     Checking path_abs v0.3.17
[INFO] [stderr]     Checking console v0.7.2
[INFO] [stderr]     Checking ergo_sync v0.1.0
[INFO] [stderr]     Checking configure v0.1.1
[INFO] [stderr]     Checking ergo_fs v0.1.5
[INFO] [stderr]     Checking dialoguer v0.1.0
[INFO] [stderr]     Checking ergo_config v0.0.1
[INFO] [stderr]     Checking ergo v0.0.1
[INFO] [stderr]     Checking novault v0.4.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cmds.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     global.lock_file.set_len(0);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cmds.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     global.lock_file.set_len(0);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.82s
[INFO] running `"docker" "inspect" "8f065a1f8eb6b57e93dfac5060063c55153382417c49ebac3b22cf186dd5aad6"`
[INFO] running `"docker" "rm" "-f" "8f065a1f8eb6b57e93dfac5060063c55153382417c49ebac3b22cf186dd5aad6"`
[INFO] [stdout] 8f065a1f8eb6b57e93dfac5060063c55153382417c49ebac3b22cf186dd5aad6