[INFO] crate dd-lib 0.2.1 is already in cache
[INFO] extracting crate dd-lib 0.2.1 into work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/reg/dd-lib/0.2.1
[INFO] extracting crate dd-lib 0.2.1 into work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/dd-lib/0.2.1
[INFO] validating manifest of dd-lib-0.2.1 on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dd-lib-0.2.1 on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-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-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/reg/dd-lib/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dd-lib-0.2.1 against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 85b7dc7c19a64dd12a153cf21747cae6fdab359166722e199945be958cbe6976
[INFO] running `"docker" "start" "-a" "85b7dc7c19a64dd12a153cf21747cae6fdab359166722e199945be958cbe6976"`
[INFO] [stderr]    Compiling encoding8 v0.3.2
[INFO] [stderr]    Compiling 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 error 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 error 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 error 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 2.52s
[INFO] running `"docker" "inspect" "85b7dc7c19a64dd12a153cf21747cae6fdab359166722e199945be958cbe6976"`
[INFO] running `"docker" "rm" "-f" "85b7dc7c19a64dd12a153cf21747cae6fdab359166722e199945be958cbe6976"`
[INFO] [stdout] 85b7dc7c19a64dd12a153cf21747cae6fdab359166722e199945be958cbe6976
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] fc224452102880bc5472707cdedd0d912eed4df04c75dd608276857a72501007
[INFO] running `"docker" "start" "-a" "fc224452102880bc5472707cdedd0d912eed4df04c75dd608276857a72501007"`
[INFO] [stderr]    Compiling 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 error 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 error 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 error 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 4.01s
[INFO] running `"docker" "inspect" "fc224452102880bc5472707cdedd0d912eed4df04c75dd608276857a72501007"`
[INFO] running `"docker" "rm" "-f" "fc224452102880bc5472707cdedd0d912eed4df04c75dd608276857a72501007"`
[INFO] [stdout] fc224452102880bc5472707cdedd0d912eed4df04c75dd608276857a72501007
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-7/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] d7e4e638d2f091b7794923285d38e2022bd2af8a89fee6efd4455f35342747cd
[INFO] running `"docker" "start" "-a" "d7e4e638d2f091b7794923285d38e2022bd2af8a89fee6efd4455f35342747cd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dd_lib-e12a76a75d02d8e7
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test opts::flags::tests::oflag ... ok
[INFO] [stdout] test io::tests::test_block ... ok
[INFO] [stdout] test io::tests::test_limited_copy ... ok
[INFO] [stdout] test opts::flags::tests::cflag ... ok
[INFO] [stdout] test io::tests::test_unblock ... ok
[INFO] [stdout] test opts::flags::tests::iflag ... ok
[INFO] [stdout] test io::tests::test_standard ... ok
[INFO] [stdout] test tests::block ... ok
[INFO] [stdout] test tests::seek_input_and_block_size ... ok
[INFO] [stdout] test tests::base_case ... ok
[INFO] [stdout] test tests::conversion_to_uppercase ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dd-lib
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/opts/number.rs - opts::number::parse (line 10) ... ok
[INFO] [stdout] test src/opts/mod.rs - opts::keyval (line 328) ... ok
[INFO] [stdout] test src/opts/mod.rs - opts::Opts::iflag (line 302) ... ok
[INFO] [stdout] test src/io/copy.rs - io::copy::fill_buf_until_match (line 168) ... ok
[INFO] [stdout] test src/io/copy.rs - io::copy::fill_buf_to (line 191) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d7e4e638d2f091b7794923285d38e2022bd2af8a89fee6efd4455f35342747cd"`
[INFO] running `"docker" "rm" "-f" "d7e4e638d2f091b7794923285d38e2022bd2af8a89fee6efd4455f35342747cd"`
[INFO] [stdout] d7e4e638d2f091b7794923285d38e2022bd2af8a89fee6efd4455f35342747cd