[INFO] crate dd-lib 0.2.1 is already in cache
[INFO] extracting crate dd-lib 0.2.1 into work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/reg/dd-lib/0.2.1
[INFO] extracting crate dd-lib 0.2.1 into work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/reg/dd-lib/0.2.1
[INFO] validating manifest of dd-lib-0.2.1 on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dd-lib-0.2.1 on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dd-lib-0.2.1
[INFO] finished frobbing dd-lib-0.2.1
[INFO] frobbed toml for dd-lib-0.2.1 written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/reg/dd-lib/0.2.1/Cargo.toml
[INFO] started frobbing dd-lib-0.2.1
[INFO] finished frobbing dd-lib-0.2.1
[INFO] frobbed toml for dd-lib-0.2.1 written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/reg/dd-lib/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dd-lib-0.2.1 against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-7/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/reg/dd-lib/0.2.1:/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=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" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a9a15c25edaa1c8e1fb4fb3d10d87aaa6499329e41abc64cc7eaefb76e747601
[INFO] running `"docker" "start" "-a" "a9a15c25edaa1c8e1fb4fb3d10d87aaa6499329e41abc64cc7eaefb76e747601"`
[INFO] [stderr]     Checking encoding8 v0.3.2
[INFO] [stderr]     Checking dd-lib v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/io/errhandler.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 writeln!(self.e, "io error: <{}>; continuing", err);
[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]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/io/errhandler.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 | /             writeln!(
[INFO] [stderr] 73 | |                 self,
[INFO] [stderr] 74 | |                 "dd in progress: unblock: elapsed: {}, wrote {} lines",
[INFO] [stderr] 75 | |                 elapsed(&start),
[INFO] [stderr] 76 | |                 lines
[INFO] [stderr] 77 | |             );
[INFO] [stderr]    | |______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/io/errhandler.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 | /             writeln!(
[INFO] [stderr] 84 | |                 self,
[INFO] [stderr] 85 | |                 "dd in progress: unblock: elapsed: {}, wrote {} fixed-length blocks",
[INFO] [stderr] 86 | |                 elapsed(&start),
[INFO] [stderr] 87 | |                 blocks
[INFO] [stderr] 88 | |             );
[INFO] [stderr]    | |______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/io/errhandler.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |                 writeln!(self.e, "io error: <{}>; continuing", err);
[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]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/io/errhandler.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 | /             writeln!(
[INFO] [stderr] 73 | |                 self,
[INFO] [stderr] 74 | |                 "dd in progress: unblock: elapsed: {}, wrote {} lines",
[INFO] [stderr] 75 | |                 elapsed(&start),
[INFO] [stderr] 76 | |                 lines
[INFO] [stderr] 77 | |             );
[INFO] [stderr]    | |______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/io/errhandler.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 | /             writeln!(
[INFO] [stderr] 84 | |                 self,
[INFO] [stderr] 85 | |                 "dd in progress: unblock: elapsed: {}, wrote {} fixed-length blocks",
[INFO] [stderr] 86 | |                 elapsed(&start),
[INFO] [stderr] 87 | |                 blocks
[INFO] [stderr] 88 | |             );
[INFO] [stderr]    | |______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `"docker" "inspect" "a9a15c25edaa1c8e1fb4fb3d10d87aaa6499329e41abc64cc7eaefb76e747601"`
[INFO] running `"docker" "rm" "-f" "a9a15c25edaa1c8e1fb4fb3d10d87aaa6499329e41abc64cc7eaefb76e747601"`
[INFO] [stdout] a9a15c25edaa1c8e1fb4fb3d10d87aaa6499329e41abc64cc7eaefb76e747601