[INFO] cloning repository https://github.com/AbdRaqeeb/minigrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AbdRaqeeb/minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbdRaqeeb%2Fminigrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbdRaqeeb%2Fminigrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be936deede7cc04bc2e3d43db0b2ec27a5b53166
[INFO] checking AbdRaqeeb/minigrep against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbdRaqeeb%2Fminigrep" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AbdRaqeeb/minigrep
[INFO] finished tweaking git repo https://github.com/AbdRaqeeb/minigrep
[INFO] tweaked toml for git repo https://github.com/AbdRaqeeb/minigrep written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AbdRaqeeb/minigrep on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AbdRaqeeb/minigrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 512d7368a8e7f3c1cbda73954ee4b279ae56de7088cc266e71af694c44b4fb42
[INFO] running `Command { std: "docker" "start" "-a" "512d7368a8e7f3c1cbda73954ee4b279ae56de7088cc266e71af694c44b4fb42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "512d7368a8e7f3c1cbda73954ee4b279ae56de7088cc266e71af694c44b4fb42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "512d7368a8e7f3c1cbda73954ee4b279ae56de7088cc266e71af694c44b4fb42", kill_on_drop: false }`
[INFO] [stdout] 512d7368a8e7f3c1cbda73954ee4b279ae56de7088cc266e71af694c44b4fb42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b664554eae3bb0a2825688aa7e0851b882bfc6739bff55d9354b7e42d99e4a3c
[INFO] running `Command { std: "docker" "start" "-a" "b664554eae3bb0a2825688aa7e0851b882bfc6739bff55d9354b7e42d99e4a3c", kill_on_drop: false }`
[INFO] [stderr]     Checking minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `len` found for type parameter `impl Iterator<Item = String>` in the current scope
[INFO] [stdout]   --> src/lib.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         mut args: impl Iterator<Item = String>
[INFO] [stdout]    |                   ---------------------------- method `len` not found for this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 16 |         if args.len() < 3 {
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] help: there is a method `le` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/core/src/iter/traits/iterator.rs:3875:5
[INFO] [stdout] help: the following trait defines an item `len`, perhaps you need to restrict type parameter `impl Iterator<Item = String>` with it:
[INFO] [stdout]    |
[INFO] [stdout] 12 |         mut args: impl Iterator<Item = String> + ExactSizeIterator
[INFO] [stdout]    |                                                +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `len` found for type parameter `impl Iterator<Item = String>` in the current scope
[INFO] [stdout]   --> src/lib.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         mut args: impl Iterator<Item = String>
[INFO] [stdout]    |                   ---------------------------- method `len` not found for this type parameter
[INFO] [stdout] ...
[INFO] [stdout] 16 |         if args.len() < 3 {
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] help: there is a method `le` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/779e19d8baa3e3625bd4fc5c85cbb2ad47b43155/library/core/src/iter/traits/iterator.rs:3875:5
[INFO] [stdout] help: the following trait defines an item `len`, perhaps you need to restrict type parameter `impl Iterator<Item = String>` with it:
[INFO] [stdout]    |
[INFO] [stdout] 12 |         mut args: impl Iterator<Item = String> + ExactSizeIterator
[INFO] [stdout]    |                                                +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minigrep` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `minigrep` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b664554eae3bb0a2825688aa7e0851b882bfc6739bff55d9354b7e42d99e4a3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b664554eae3bb0a2825688aa7e0851b882bfc6739bff55d9354b7e42d99e4a3c", kill_on_drop: false }`
[INFO] [stdout] b664554eae3bb0a2825688aa7e0851b882bfc6739bff55d9354b7e42d99e4a3c
