[INFO] updating cached repository https://github.com/Lazzlo2096/fdupes-xenon
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 881f734acd07245a3d425121e689637df393d028
[INFO] testing Lazzlo2096/fdupes-xenon against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FLazzlo2096%2Ffdupes-xenon" "work/builds/worker-1/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Lazzlo2096/fdupes-xenon on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Lazzlo2096/fdupes-xenon
[INFO] finished tweaking git repo https://github.com/Lazzlo2096/fdupes-xenon
[INFO] tweaked toml for git repo https://github.com/Lazzlo2096/fdupes-xenon written to work/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Lazzlo2096/fdupes-xenon already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 5b62229d55c1d517853d00d81f8496664e18a1ca21c338ed2a996b656dbf11a8
[INFO] running `"docker" "start" "-a" "5b62229d55c1d517853d00d81f8496664e18a1ca21c338ed2a996b656dbf11a8"`
[INFO] [stderr]    Compiling md5 v0.3.7
[INFO] [stderr]    Compiling fdupes-xenon v0.1.1 (/opt/rustwide/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 3.22s
[INFO] running `"docker" "inspect" "5b62229d55c1d517853d00d81f8496664e18a1ca21c338ed2a996b656dbf11a8"`
[INFO] running `"docker" "rm" "-f" "5b62229d55c1d517853d00d81f8496664e18a1ca21c338ed2a996b656dbf11a8"`
[INFO] [stdout] 5b62229d55c1d517853d00d81f8496664e18a1ca21c338ed2a996b656dbf11a8
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] a2c510b46bc3ae9372b1690dcd8123db480c3cfa85aec2117889ff3322a85c1b
[INFO] running `"docker" "start" "-a" "a2c510b46bc3ae9372b1690dcd8123db480c3cfa85aec2117889ff3322a85c1b"`
[INFO] [stderr]    Compiling fdupes-xenon v0.1.1 (/opt/rustwide/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" "a2c510b46bc3ae9372b1690dcd8123db480c3cfa85aec2117889ff3322a85c1b"`
[INFO] running `"docker" "rm" "-f" "a2c510b46bc3ae9372b1690dcd8123db480c3cfa85aec2117889ff3322a85c1b"`
[INFO] [stdout] a2c510b46bc3ae9372b1690dcd8123db480c3cfa85aec2117889ff3322a85c1b