[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] checking Cyphle/tutorial-minigrep against master#a6acf0f07f0ed1c12e26dc0db3b9bf1d0504a0bb for pr-151109
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyphle%2Ftutorial-minigrep" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[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-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Cyphle/tutorial-minigrep on toolchain a6acf0f07f0ed1c12e26dc0db3b9bf1d0504a0bb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a6acf0f07f0ed1c12e26dc0db3b9bf1d0504a0bb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+a6acf0f07f0ed1c12e26dc0db3b9bf1d0504a0bb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a6acf0f07f0ed1c12e26dc0db3b9bf1d0504a0bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 854e706db603693128671669a797715d0f6a896432569c163f78aad58d13ba8d
[INFO] running `Command { std: "docker" "start" "-a" "854e706db603693128671669a797715d0f6a896432569c163f78aad58d13ba8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "854e706db603693128671669a797715d0f6a896432569c163f78aad58d13ba8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854e706db603693128671669a797715d0f6a896432569c163f78aad58d13ba8d", kill_on_drop: false }`
[INFO] [stdout] 854e706db603693128671669a797715d0f6a896432569c163f78aad58d13ba8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a6acf0f07f0ed1c12e26dc0db3b9bf1d0504a0bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 320ca80860808afcbdb0de6cbe15ff39cfba502901ed6c0a97e3f2fa039a828d
[INFO] running `Command { std: "docker" "start" "-a" "320ca80860808afcbdb0de6cbe15ff39cfba502901ed6c0a97e3f2fa039a828d", kill_on_drop: false }`
[INFO] [stderr]     Checking 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]   --> 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" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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]   --> 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" "320ca80860808afcbdb0de6cbe15ff39cfba502901ed6c0a97e3f2fa039a828d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "320ca80860808afcbdb0de6cbe15ff39cfba502901ed6c0a97e3f2fa039a828d", kill_on_drop: false }`
[INFO] [stdout] 320ca80860808afcbdb0de6cbe15ff39cfba502901ed6c0a97e3f2fa039a828d
