[INFO] crate from 0.0.2 is already in cache
[INFO] testing from-0.0.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate from 0.0.2 into work/builds/worker-6/source
[INFO] validating manifest of crates.io crate from 0.0.2 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate from 0.0.2
[INFO] finished tweaking crates.io crate from 0.0.2
[INFO] tweaked toml for crates.io crate from 0.0.2 written to work/builds/worker-6/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 02885e7442d79e9d02908db4e847d4c939f72d31e914b72bb1a0bcecd9664b8d
[INFO] running `"docker" "start" "-a" "02885e7442d79e9d02908db4e847d4c939f72d31e914b72bb1a0bcecd9664b8d"`
[INFO] [stderr]    Compiling from v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `as_slice` found for type `&'a std::string::String` in the current scope
[INFO] [stderr]   --> src/lib.rs:25:43
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn from(x: &'a String) -> &'a str { x.as_slice() }
[INFO] [stderr]    |                                           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `into_string` found for type `&'a str` in the current scope
[INFO] [stderr]   --> src/lib.rs:29:39
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn from(x: &'a str) -> String { x.into_string() }
[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 `from`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "02885e7442d79e9d02908db4e847d4c939f72d31e914b72bb1a0bcecd9664b8d"`
[INFO] running `"docker" "rm" "-f" "02885e7442d79e9d02908db4e847d4c939f72d31e914b72bb1a0bcecd9664b8d"`
[INFO] [stdout] 02885e7442d79e9d02908db4e847d4c939f72d31e914b72bb1a0bcecd9664b8d