[INFO] cloning repository https://github.com/Cyphle/tutorial-minigrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cyphle/tutorial-minigrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyphle%2Ftutorial-minigrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyphle%2Ftutorial-minigrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f933efd6ac88fc17f1544b5e2569f48b2e25df25
[INFO] building Cyphle/tutorial-minigrep against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyphle%2Ftutorial-minigrep" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Cyphle/tutorial-minigrep on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Cyphle/tutorial-minigrep
[INFO] finished tweaking git repo https://github.com/Cyphle/tutorial-minigrep
[INFO] tweaked toml for git repo https://github.com/Cyphle/tutorial-minigrep written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Cyphle/tutorial-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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 268ab4f6c9eaaaa4eeeb43bd5a70c732bdbfabb637054159b108e1409851d735
[INFO] running `Command { std: "docker" "start" "-a" "268ab4f6c9eaaaa4eeeb43bd5a70c732bdbfabb637054159b108e1409851d735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "268ab4f6c9eaaaa4eeeb43bd5a70c732bdbfabb637054159b108e1409851d735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "268ab4f6c9eaaaa4eeeb43bd5a70c732bdbfabb637054159b108e1409851d735", kill_on_drop: false }`
[INFO] [stdout] 268ab4f6c9eaaaa4eeeb43bd5a70c732bdbfabb637054159b108e1409851d735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9d457eb30e1619983ea095ea9e22c6b233865b19921b63e21aab00a3475dd75
[INFO] running `Command { std: "docker" "start" "-a" "b9d457eb30e1619983ea095ea9e22c6b233865b19921b63e21aab00a3475dd75", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0271]: expected `Vars` to be an iterator that yields `String`, but it yields `(String, String)`
[INFO] [stdout]   --> src/main.rs:6:32
[INFO] [stdout]    |
[INFO] [stdout] 6  |     let config = Config::build(env::vars()).unwrap_or_else(|err| {
[INFO] [stdout]    |                  ------------- ^^^^^^^^^^^ expected `String`, found `(String, String)`
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `String`
[INFO] [stdout]                found tuple `(String, String)`
[INFO] [stdout] note: required by a bound in `Config::build`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:27:42
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn build(mut args: impl Iterator<Item = String>) -> Result<Config, &'static str> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^ required by this bound in `Config::build`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minigrep` (bin "minigrep") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b9d457eb30e1619983ea095ea9e22c6b233865b19921b63e21aab00a3475dd75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d457eb30e1619983ea095ea9e22c6b233865b19921b63e21aab00a3475dd75", kill_on_drop: false }`
[INFO] [stdout] b9d457eb30e1619983ea095ea9e22c6b233865b19921b63e21aab00a3475dd75
