[INFO] cloning repository https://github.com/archer884/vchk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/archer884/vchk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fvchk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fvchk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0cfd9061ebad437378fabd298698aa89784daf7
[INFO] testing archer884/vchk against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fvchk" "/workspace/builds/worker-84/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-84/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/archer884/vchk on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/archer884/vchk
[INFO] finished tweaking git repo https://github.com/archer884/vchk
[INFO] tweaked toml for git repo https://github.com/archer884/vchk written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] crate git repo https://github.com/archer884/vchk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f1d4465b36d1c4c66a8150936fc106e9b672c24d46c884db4984560da5e8be9
[INFO] running `Command { std: "docker" "start" "-a" "1f1d4465b36d1c4c66a8150936fc106e9b672c24d46c884db4984560da5e8be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f1d4465b36d1c4c66a8150936fc106e9b672c24d46c884db4984560da5e8be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f1d4465b36d1c4c66a8150936fc106e9b672c24d46c884db4984560da5e8be9", kill_on_drop: false }`
[INFO] [stdout] 1f1d4465b36d1c4c66a8150936fc106e9b672c24d46c884db4984560da5e8be9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0d8481ff8e5042d28a99e488ac3a4e9089c9d09a4bd227f4881a3d5b69f3091
[INFO] running `Command { std: "docker" "start" "-a" "d0d8481ff8e5042d28a99e488ac3a4e9089c9d09a4bd227f4881a3d5b69f3091", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling vchk v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::io::BufReadExt`
[INFO] [stdout]  --> src/main.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufReader, BufReadExt};
[INFO] [stdout]   |                          ^^^^^^^^^^
[INFO] [stdout]   |                          |
[INFO] [stdout]   |                          no `BufReadExt` in `io`
[INFO] [stdout]   |                          help: a similar name exists in the module: `BufRead`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax, env, fs, io, path)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:24:27
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn print_count(words: Box<Iterator<Item=VWord>>) {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=VWord>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:28:27
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn print_words(words: Box<Iterator<Item=VWord>>) {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=VWord>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:34:44
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn get_words<'a>(req_ordered: bool) -> Box<Iterator<Item=VWord> + 'a> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=VWord> + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `lines` found for struct `BufReader` in the current scope
[INFO] [stdout]     --> src/main.rs:36:10
[INFO] [stdout]      |
[INFO] [stdout] 36   |         .lines()
[INFO] [stdout]      |          ^^^^^ method not found in `BufReader<File>`
[INFO] [stdout]      |
[INFO] [stdout]      = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]      |
[INFO] [stdout] 4    | use std::io::BufRead;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vchk` due to 4 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "d0d8481ff8e5042d28a99e488ac3a4e9089c9d09a4bd227f4881a3d5b69f3091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0d8481ff8e5042d28a99e488ac3a4e9089c9d09a4bd227f4881a3d5b69f3091", kill_on_drop: false }`
[INFO] [stdout] d0d8481ff8e5042d28a99e488ac3a4e9089c9d09a4bd227f4881a3d5b69f3091
