[INFO] updating cached repository archer884/vchk [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/archer884/vchk [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/archer884/vchk" "work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/vchk"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/vchk'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/archer884/vchk" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/vchk"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/vchk'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] a0cfd9061ebad437378fabd298698aa89784daf7 [INFO] sha for GitHub repo archer884/vchk: a0cfd9061ebad437378fabd298698aa89784daf7 [INFO] validating manifest of archer884/vchk 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 archer884/vchk 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 archer884/vchk [INFO] finished frobbing archer884/vchk [INFO] frobbed toml for archer884/vchk written to work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/vchk/Cargo.toml [INFO] started frobbing archer884/vchk [INFO] finished frobbing archer884/vchk [INFO] frobbed toml for archer884/vchk written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/vchk/Cargo.toml [INFO] crate archer884/vchk 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 archer884/vchk 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/archer884/vchk:/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] 6327376ec08ce3a27d1f28ddc02bb1ac877857102e50125cf10894b591125c70 [INFO] running `"docker" "start" "-a" "6327376ec08ce3a27d1f28ddc02bb1ac877857102e50125cf10894b591125c70"` [INFO] [stderr] Compiling vchk v0.0.1 (/opt/crater/workdir) [INFO] [stderr] error[E0432]: unresolved import `std::io::BufReadExt` [INFO] [stderr] --> src/main.rs:7:26 [INFO] [stderr] | [INFO] [stderr] 7 | use std::io::{BufReader, BufReadExt}; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | no `BufReadExt` in `io` [INFO] [stderr] | help: a similar name exists in the module: `BufRead` [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(box_syntax, env, fs, io, path)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:24:27 [INFO] [stderr] | [INFO] [stderr] 24 | fn print_count(words: Box>) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:28:27 [INFO] [stderr] | [INFO] [stderr] 28 | fn print_words(words: Box>) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:34:44 [INFO] [stderr] | [INFO] [stderr] 34 | fn get_words<'a>(req_ordered: bool) -> Box + 'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator + 'a` [INFO] [stderr] [INFO] [stderr] error[E0599]: no method named `lines` found for type `std::io::BufReader` in the current scope [INFO] [stderr] --> src/main.rs:36:10 [INFO] [stderr] | [INFO] [stderr] 36 | .lines() [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: items from traits can only be used if the trait is in scope [INFO] [stderr] help: the following trait is implemented but not in scope, perhaps add a `use` for it: [INFO] [stderr] | [INFO] [stderr] 4 | use std::io::BufRead; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0432, E0554, E0599. [INFO] [stderr] For more information about an error, try `rustc --explain E0432`. [INFO] [stderr] error: Could not compile `vchk`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "6327376ec08ce3a27d1f28ddc02bb1ac877857102e50125cf10894b591125c70"` [INFO] running `"docker" "rm" "-f" "6327376ec08ce3a27d1f28ddc02bb1ac877857102e50125cf10894b591125c70"` [INFO] [stdout] 6327376ec08ce3a27d1f28ddc02bb1ac877857102e50125cf10894b591125c70