[INFO] updating cached repository Lazzlo2096/fdupes-xenon
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Lazzlo2096/fdupes-xenon
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Lazzlo2096/fdupes-xenon" "work/ex/beta-1.38-1/sources/1.37.0/gh/Lazzlo2096/fdupes-xenon"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Lazzlo2096/fdupes-xenon'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Lazzlo2096/fdupes-xenon" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lazzlo2096/fdupes-xenon"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lazzlo2096/fdupes-xenon'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 881f734acd07245a3d425121e689637df393d028
[INFO] sha for GitHub repo Lazzlo2096/fdupes-xenon: 881f734acd07245a3d425121e689637df393d028
[INFO] validating manifest of Lazzlo2096/fdupes-xenon 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 Lazzlo2096/fdupes-xenon 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 Lazzlo2096/fdupes-xenon
[INFO] finished frobbing Lazzlo2096/fdupes-xenon
[INFO] frobbed toml for Lazzlo2096/fdupes-xenon written to work/ex/beta-1.38-1/sources/1.37.0/gh/Lazzlo2096/fdupes-xenon/Cargo.toml
[INFO] started frobbing Lazzlo2096/fdupes-xenon
[INFO] finished frobbing Lazzlo2096/fdupes-xenon
[INFO] frobbed toml for Lazzlo2096/fdupes-xenon written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lazzlo2096/fdupes-xenon/Cargo.toml
[INFO] crate Lazzlo2096/fdupes-xenon already has a lockfile, it will not be regenerated
[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 Lazzlo2096/fdupes-xenon 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-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lazzlo2096/fdupes-xenon:/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] d03cb1690801c28f8c376280f71e708892f9cc683cb69b6f6b4acb3cd859c7c9
[INFO] running `"docker" "start" "-a" "d03cb1690801c28f8c376280f71e708892f9cc683cb69b6f6b4acb3cd859c7c9"`
[INFO] [stderr]    Compiling fdupes-xenon v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 |             f.read_to_end(&mut buffer);
[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 1.59s
[INFO] running `"docker" "inspect" "d03cb1690801c28f8c376280f71e708892f9cc683cb69b6f6b4acb3cd859c7c9"`
[INFO] running `"docker" "rm" "-f" "d03cb1690801c28f8c376280f71e708892f9cc683cb69b6f6b4acb3cd859c7c9"`
[INFO] [stdout] d03cb1690801c28f8c376280f71e708892f9cc683cb69b6f6b4acb3cd859c7c9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Lazzlo2096/fdupes-xenon:/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] 36e737915c38aedb3b42094f2f4460a10078fcfccc7e33d2131498251fe00410
[INFO] running `"docker" "start" "-a" "36e737915c38aedb3b42094f2f4460a10078fcfccc7e33d2131498251fe00410"`
[INFO] [stderr]    Compiling fdupes-xenon v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no function or associated item named `from_utf8` found for type `str` in the current scope
[INFO] [stderr]    --> src/main.rs:157:22
[INFO] [stderr]     |
[INFO] [stderr] 157 |         let buf_str = str::from_utf8(&buffer).unwrap();
[INFO] [stderr]     |                            ^^^^^^^^^ function or associated item not found in `str`
[INFO] [stderr] help: you are looking for the module in `std`, not the primitive type
[INFO] [stderr]     |
[INFO] [stderr] 157 |         let buf_str = std::str::from_utf8(&buffer).unwrap();
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_utf8` found for type `str` in the current scope
[INFO] [stderr]    --> src/main.rs:175:21
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let qwerty = str::from_utf8(&buffer).unwrap();
[INFO] [stderr]     |                           ^^^^^^^^^ function or associated item not found in `str`
[INFO] [stderr] help: you are looking for the module in `std`, not the primitive type
[INFO] [stderr]     |
[INFO] [stderr] 175 |         let qwerty = std::str::from_utf8(&buffer).unwrap();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `fdupes-xenon`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "36e737915c38aedb3b42094f2f4460a10078fcfccc7e33d2131498251fe00410"`
[INFO] running `"docker" "rm" "-f" "36e737915c38aedb3b42094f2f4460a10078fcfccc7e33d2131498251fe00410"`
[INFO] [stdout] 36e737915c38aedb3b42094f2f4460a10078fcfccc7e33d2131498251fe00410