[INFO] cloning repository https://github.com/CopperWasp/Rust_exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CopperWasp/Rust_exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCopperWasp%2FRust_exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCopperWasp%2FRust_exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9118d5e6f72440328eb60a5b7f6fbea47980abe5
[INFO] checking CopperWasp/Rust_exercise against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCopperWasp%2FRust_exercise" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CopperWasp/Rust_exercise on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CopperWasp/Rust_exercise
[INFO] finished tweaking git repo https://github.com/CopperWasp/Rust_exercise
[INFO] tweaked toml for git repo https://github.com/CopperWasp/Rust_exercise written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CopperWasp/Rust_exercise 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be30157d1e2341c1780c891b9f5318b773b49a799785fbc575d58af0ac97e3d5
[INFO] running `Command { std: "docker" "start" "-a" "be30157d1e2341c1780c891b9f5318b773b49a799785fbc575d58af0ac97e3d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be30157d1e2341c1780c891b9f5318b773b49a799785fbc575d58af0ac97e3d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be30157d1e2341c1780c891b9f5318b773b49a799785fbc575d58af0ac97e3d5", kill_on_drop: false }`
[INFO] [stdout] be30157d1e2341c1780c891b9f5318b773b49a799785fbc575d58af0ac97e3d5
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 059bf6210fea7b0915cee8f0324e8b227964e696bbd4e8ad4a24673e9d4cda4e
[INFO] running `Command { std: "docker" "start" "-a" "059bf6210fea7b0915cee8f0324e8b227964e696bbd4e8ad4a24673e9d4cda4e", kill_on_drop: false }`
[INFO] [stderr]     Checking let_lang_proj v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `let_lang_exp`
[INFO] [stdout]   --> src/proc_lang_env.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     use let_lang_exp::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^ maybe a missing crate `let_lang_exp`?
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding `extern crate let_lang_exp` to use the `let_lang_exp` crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/proc_lang_env.rs:88:63
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let env2 = null_env.extend_env(&("var1".to_string()), 25);
[INFO] [stdout]    |                             ----------                        ^^ expected `IntBoolProc`, found integer
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             arguments to this method are incorrect
[INFO] [stdout]    |
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> src/proc_lang_env.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn extend_env(&self, s:&String, val: IntBoolProc) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^                   ----------------
[INFO] [stdout] help: try wrapping the expression in `int_bool_proc::IntBoolProc::Integer`
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let env2 = null_env.extend_env(&("var1".to_string()), int_bool_proc::IntBoolProc::Integer(25));
[INFO] [stdout]    |                                                               ++++++++++++++++++++++++++++++++++++  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `let_lang_proj` (lib test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "059bf6210fea7b0915cee8f0324e8b227964e696bbd4e8ad4a24673e9d4cda4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "059bf6210fea7b0915cee8f0324e8b227964e696bbd4e8ad4a24673e9d4cda4e", kill_on_drop: false }`
[INFO] [stdout] 059bf6210fea7b0915cee8f0324e8b227964e696bbd4e8ad4a24673e9d4cda4e