[INFO] updating cached repository CopperWasp/Rust_exercise [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/CopperWasp/Rust_exercise [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/CopperWasp/Rust_exercise" "work/ex/beta-1.37-6/sources/1.36.0/gh/CopperWasp/Rust_exercise"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/CopperWasp/Rust_exercise'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/CopperWasp/Rust_exercise" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/CopperWasp/Rust_exercise"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/CopperWasp/Rust_exercise'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9118d5e6f72440328eb60a5b7f6fbea47980abe5 [INFO] sha for GitHub repo CopperWasp/Rust_exercise: 9118d5e6f72440328eb60a5b7f6fbea47980abe5 [INFO] validating manifest of CopperWasp/Rust_exercise on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of CopperWasp/Rust_exercise on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing CopperWasp/Rust_exercise [INFO] finished frobbing CopperWasp/Rust_exercise [INFO] frobbed toml for CopperWasp/Rust_exercise written to work/ex/beta-1.37-6/sources/1.36.0/gh/CopperWasp/Rust_exercise/Cargo.toml [INFO] started frobbing CopperWasp/Rust_exercise [INFO] finished frobbing CopperWasp/Rust_exercise [INFO] frobbed toml for CopperWasp/Rust_exercise written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/CopperWasp/Rust_exercise/Cargo.toml [INFO] crate CopperWasp/Rust_exercise already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing CopperWasp/Rust_exercise against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/CopperWasp/Rust_exercise:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 48b3a43340de590987daf2d8d6a6a268346a13d64f302c31b2fc0fdc7176c1a1 [INFO] running `"docker" "start" "-a" "48b3a43340de590987daf2d8d6a6a268346a13d64f302c31b2fc0fdc7176c1a1"` [INFO] [stderr] Compiling let_lang_proj v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `proc_lang_env` [INFO] [stderr] --> src/proc_lang_exp.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use proc_lang_env; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `env` [INFO] [stderr] --> src/proc_lang_env.rs:32:58 [INFO] [stderr] | [INFO] [stderr] 32 | ProcEnvExp::ExtendEnvRec(pname, bvar, pbody, env) => [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_env` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pname` [INFO] [stderr] --> src/proc_lang_env.rs:59:38 [INFO] [stderr] | [INFO] [stderr] 59 | ProcEnvExp::ExtendEnvRec(pname, bvar, pbody, env) => {let mut temp = "proc ".to_string(); [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_pname` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `env` [INFO] [stderr] --> src/int_bool_proc.rs:17:44 [INFO] [stderr] | [INFO] [stderr] 17 | IntBoolProc::Procedure(s, exp, env) => s.to_string(), //check [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_env` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `exp` [INFO] [stderr] --> src/int_bool_proc.rs:17:39 [INFO] [stderr] | [INFO] [stderr] 17 | IntBoolProc::Procedure(s, exp, env) => s.to_string(), //check [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_exp` [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/main.rs:120:90 [INFO] [stderr] | [INFO] [stderr] 120 | ProcLangExp::ProcExp(v, e) => Some(IntBoolProc::Procedure(v.clone(), Rc::new(((*e). clone())), Rc::new(env.clone()))), [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `show_parse` [INFO] [stderr] --> src/main.rs:79:1 [INFO] [stderr] | [INFO] [stderr] 79 | fn show_parse(s: &String) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.90s [INFO] running `"docker" "inspect" "48b3a43340de590987daf2d8d6a6a268346a13d64f302c31b2fc0fdc7176c1a1"` [INFO] running `"docker" "rm" "-f" "48b3a43340de590987daf2d8d6a6a268346a13d64f302c31b2fc0fdc7176c1a1"` [INFO] [stdout] 48b3a43340de590987daf2d8d6a6a268346a13d64f302c31b2fc0fdc7176c1a1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/CopperWasp/Rust_exercise:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 3234f159441581b3bed60d0eac08d5142f9796d40d3cdc699e7dba4d71320957 [INFO] running `"docker" "start" "-a" "3234f159441581b3bed60d0eac08d5142f9796d40d3cdc699e7dba4d71320957"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] [stderr] Compiling let_lang_proj v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0432]: unresolved import `let_lang_exp` [INFO] [stderr] --> src/proc_lang_env.rs:81:9 [INFO] [stderr] | [INFO] [stderr] 81 | use let_lang_exp::*; [INFO] [stderr] | ^^^^^^^^^^^^ maybe a missing `extern crate let_lang_exp;`? [INFO] [stderr] [INFO] [stderr] warning: unused import: `proc_lang_env` [INFO] [stderr] --> src/proc_lang_exp.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use proc_lang_env; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `let_lang_exp::*` [INFO] [stderr] --> src/proc_lang_env.rs:81:9 [INFO] [stderr] | [INFO] [stderr] 81 | use let_lang_exp::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/main.rs:120:90 [INFO] [stderr] | [INFO] [stderr] 120 | ProcLangExp::ProcExp(v, e) => Some(IntBoolProc::Procedure(v.clone(), Rc::new(((*e). clone())), Rc::new(env.clone()))), [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `show_parse` [INFO] [stderr] --> src/main.rs:79:1 [INFO] [stderr] | [INFO] [stderr] 79 | fn show_parse(s: &String) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/proc_lang_env.rs:88:63 [INFO] [stderr] | [INFO] [stderr] 88 | let env2 = null_env.extend_env(&("var1".to_string()), 25); [INFO] [stderr] | ^^ [INFO] [stderr] | | [INFO] [stderr] | expected enum `int_bool_proc::IntBoolProc`, found integer [INFO] [stderr] | help: try using a variant of the expected type: `int_bool_proc::IntBoolProc::Integer(25)` [INFO] [stderr] | [INFO] [stderr] = note: expected type `int_bool_proc::IntBoolProc` [INFO] [stderr] found type `{integer}` [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0308, E0432. [INFO] [stderr] For more information about an error, try `rustc --explain E0308`. [INFO] [stderr] error: Could not compile `let_lang_proj`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "3234f159441581b3bed60d0eac08d5142f9796d40d3cdc699e7dba4d71320957"` [INFO] running `"docker" "rm" "-f" "3234f159441581b3bed60d0eac08d5142f9796d40d3cdc699e7dba4d71320957"` [INFO] [stdout] 3234f159441581b3bed60d0eac08d5142f9796d40d3cdc699e7dba4d71320957