[INFO] updating cached repository anztrax/learnrust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/anztrax/learnrust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/anztrax/learnrust" "work/ex/beta-1.37-6/sources/1.36.0/gh/anztrax/learnrust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/anztrax/learnrust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/anztrax/learnrust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anztrax/learnrust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anztrax/learnrust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d04f8dcbd5690f4b590bcf9fdaaccaa6fa844a9f [INFO] sha for GitHub repo anztrax/learnrust: d04f8dcbd5690f4b590bcf9fdaaccaa6fa844a9f [INFO] validating manifest of anztrax/learnrust 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 anztrax/learnrust 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 anztrax/learnrust [INFO] finished frobbing anztrax/learnrust [INFO] frobbed toml for anztrax/learnrust written to work/ex/beta-1.37-6/sources/1.36.0/gh/anztrax/learnrust/Cargo.toml [INFO] started frobbing anztrax/learnrust [INFO] finished frobbing anztrax/learnrust [INFO] frobbed toml for anztrax/learnrust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/anztrax/learnrust/Cargo.toml [INFO] crate anztrax/learnrust 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] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing anztrax/learnrust 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/anztrax/learnrust:/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] 6e25a0d0de9279ad25be66e64c53083a12c21a1fe9dc6157412c12d09ccd4efa [INFO] running `"docker" "start" "-a" "6e25a0d0de9279ad25be66e64c53083a12c21a1fe9dc6157412c12d09ccd4efa"` [INFO] [stderr] Compiling learnrust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `::lessons::Rectangle::Rectangle` [INFO] [stderr] --> src/adder/mod.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use ::lessons::Rectangle::Rectangle; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `::lessons::Guess::Guess` [INFO] [stderr] --> src/adder/mod.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use ::lessons::Guess::Guess; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/closures/learnIterator.rs:30:7 [INFO] [stderr] | [INFO] [stderr] 30 | if(self.count < 6){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v_reference` [INFO] [stderr] --> src/lessons/commonCollection.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | let v_reference = &v[v_index]; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_v_reference` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s2` [INFO] [stderr] --> src/lessons/tryStringCollection.rs:24:7 [INFO] [stderr] | [INFO] [stderr] 24 | let s2 = String::from("tac"); [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point2` [INFO] [stderr] --> src/lessons/tryGenericTypes.rs:48:7 [INFO] [stderr] | [INFO] [stderr] 48 | let point2 = Point{x : 10.1, y: 20.2}; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_point2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point2_2` [INFO] [stderr] --> src/lessons/tryGenericTypes.rs:53:7 [INFO] [stderr] | [INFO] [stderr] 53 | let point2_2 = Point2{x : 20, y : 20.1}; [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_point2_2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `intensity` [INFO] [stderr] --> src/closures/learnClosure.rs:41:40 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn simulated_expensive_calculation(intensity: u32){ [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_intensity` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `expensive_result2` [INFO] [stderr] --> src/closures/learnClosure.rs:62:7 [INFO] [stderr] | [INFO] [stderr] 62 | let expensive_result2 = expensive_calculation(intensity); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_expensive_result2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `expensive_result3` [INFO] [stderr] --> src/closures/learnClosure.rs:63:7 [INFO] [stderr] | [INFO] [stderr] 63 | let expensive_result3 = |num: u32| -> u32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_expensive_result3` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `returns_summarizable` [INFO] [stderr] --> src/lessons/tryGenericTypes.rs:132:1 [INFO] [stderr] | [INFO] [stderr] 132 | fn returns_summarizable() -> impl Summary { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `value` [INFO] [stderr] --> src/lessons/Guess.rs:2:3 [INFO] [stderr] | [INFO] [stderr] 2 | value:u32, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: module `commonCollection` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:1:9 [INFO] [stderr] | [INFO] [stderr] 1 | pub mod commonCollection; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `common_collection` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: module `tryStringCollection` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | pub mod tryStringCollection; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_string_collection` [INFO] [stderr] [INFO] [stderr] warning: module `tryHashMapCollection` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | pub mod tryHashMapCollection; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map_collection` [INFO] [stderr] [INFO] [stderr] warning: module `recoverableError` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | pub mod recoverableError; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error` [INFO] [stderr] [INFO] [stderr] warning: module `tryGenericTypes` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | pub mod tryGenericTypes; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_generic_types` [INFO] [stderr] [INFO] [stderr] warning: module `tryLifetime` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | pub mod tryLifetime; [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `try_lifetime` [INFO] [stderr] [INFO] [stderr] warning: module `Rectangle` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | pub mod Rectangle; [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `rectangle` [INFO] [stderr] [INFO] [stderr] warning: module `Guess` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | pub mod Guess; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `guess` [INFO] [stderr] [INFO] [stderr] warning: function `tryCommonCollection` should have a snake case name [INFO] [stderr] --> src/lessons/commonCollection.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | pub fn tryCommonCollection(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_common_collection` [INFO] [stderr] [INFO] [stderr] warning: function `tryUpdateString` should have a snake case name [INFO] [stderr] --> src/lessons/tryStringCollection.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn tryUpdateString(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_update_string` [INFO] [stderr] [INFO] [stderr] warning: function `tryHashMap` should have a snake case name [INFO] [stderr] --> src/lessons/tryHashMapCollection.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn tryHashMap(){ [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map` [INFO] [stderr] [INFO] [stderr] warning: function `recoverableError` should have a snake case name [INFO] [stderr] --> src/lessons/recoverableError.rs:27:8 [INFO] [stderr] | [INFO] [stderr] 27 | pub fn recoverableError(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error` [INFO] [stderr] [INFO] [stderr] warning: module `learnClosure` should have a snake case name [INFO] [stderr] --> src/closures/mod.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | pub mod learnClosure; [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_closure` [INFO] [stderr] [INFO] [stderr] warning: module `learnIterator` should have a snake case name [INFO] [stderr] --> src/closures/mod.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | pub mod learnIterator; [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator` [INFO] [stderr] [INFO] [stderr] warning: function `learnIterator` should have a snake case name [INFO] [stderr] --> src/closures/learnIterator.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn learnIterator(){ [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `email` [INFO] [stderr] --> src/main.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | email: String, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `sign_in_count` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | sign_in_count: u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `active` [INFO] [stderr] --> src/main.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | active: bool [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant `point1` should have an upper case name [INFO] [stderr] --> src/main.rs:100:11 [INFO] [stderr] | [INFO] [stderr] 100 | const point1 :Point = Point(0,0,0); [INFO] [stderr] | ^^^^^^ help: convert the identifier to upper case: `POINT1` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_upper_case_globals)] on by default [INFO] [stderr] [INFO] [stderr] warning: constant `color1` should have an upper case name [INFO] [stderr] --> src/main.rs:101:11 [INFO] [stderr] | [INFO] [stderr] 101 | const color1 :Color = Color( 0, 0, 10); [INFO] [stderr] | ^^^^^^ help: convert the identifier to upper case: `COLOR1` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.97s [INFO] running `"docker" "inspect" "6e25a0d0de9279ad25be66e64c53083a12c21a1fe9dc6157412c12d09ccd4efa"` [INFO] running `"docker" "rm" "-f" "6e25a0d0de9279ad25be66e64c53083a12c21a1fe9dc6157412c12d09ccd4efa"` [INFO] [stdout] 6e25a0d0de9279ad25be66e64c53083a12c21a1fe9dc6157412c12d09ccd4efa [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/anztrax/learnrust:/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] 985e71ebfe8afbbb458438f53f23656650ba504d6c17fb5289e490357d90000c [INFO] running `"docker" "start" "-a" "985e71ebfe8afbbb458438f53f23656650ba504d6c17fb5289e490357d90000c"` [INFO] [stderr] Compiling learnrust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/closures/learnIterator.rs:30:7 [INFO] [stderr] | [INFO] [stderr] 30 | if(self.count < 6){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `email` [INFO] [stderr] --> src/main.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | email: String, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `sign_in_count` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | sign_in_count: u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `active` [INFO] [stderr] --> src/main.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | active: bool [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant `point1` should have an upper case name [INFO] [stderr] --> src/main.rs:100:11 [INFO] [stderr] | [INFO] [stderr] 100 | const point1 :Point = Point(0,0,0); [INFO] [stderr] | ^^^^^^ help: convert the identifier to upper case: `POINT1` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_upper_case_globals)] on by default [INFO] [stderr] [INFO] [stderr] warning: constant `color1` should have an upper case name [INFO] [stderr] --> src/main.rs:101:11 [INFO] [stderr] | [INFO] [stderr] 101 | const color1 :Color = Color( 0, 0, 10); [INFO] [stderr] | ^^^^^^ help: convert the identifier to upper case: `COLOR1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v_reference` [INFO] [stderr] --> src/lessons/commonCollection.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | let v_reference = &v[v_index]; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_v_reference` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s2` [INFO] [stderr] --> src/lessons/tryStringCollection.rs:24:7 [INFO] [stderr] | [INFO] [stderr] 24 | let s2 = String::from("tac"); [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point2` [INFO] [stderr] --> src/lessons/tryGenericTypes.rs:48:7 [INFO] [stderr] | [INFO] [stderr] 48 | let point2 = Point{x : 10.1, y: 20.2}; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_point2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `point2_2` [INFO] [stderr] --> src/lessons/tryGenericTypes.rs:53:7 [INFO] [stderr] | [INFO] [stderr] 53 | let point2_2 = Point2{x : 20, y : 20.1}; [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_point2_2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `guess` [INFO] [stderr] --> src/adder/mod.rs:45:7 [INFO] [stderr] | [INFO] [stderr] 45 | let guess = Guess::new(0); [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_guess` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/adder/mod.rs:74:7 [INFO] [stderr] | [INFO] [stderr] 74 | let y = 10; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `intensity` [INFO] [stderr] --> src/closures/learnClosure.rs:41:40 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn simulated_expensive_calculation(intensity: u32){ [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_intensity` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `expensive_result2` [INFO] [stderr] --> src/closures/learnClosure.rs:62:7 [INFO] [stderr] | [INFO] [stderr] 62 | let expensive_result2 = expensive_calculation(intensity); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_expensive_result2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `expensive_result3` [INFO] [stderr] --> src/closures/learnClosure.rs:63:7 [INFO] [stderr] | [INFO] [stderr] 63 | let expensive_result3 = |num: u32| -> u32{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_expensive_result3` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `returns_summarizable` [INFO] [stderr] --> src/lessons/tryGenericTypes.rs:132:1 [INFO] [stderr] | [INFO] [stderr] 132 | fn returns_summarizable() -> impl Summary { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `value` [INFO] [stderr] --> src/lessons/Guess.rs:2:3 [INFO] [stderr] | [INFO] [stderr] 2 | value:u32, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: module `commonCollection` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:1:9 [INFO] [stderr] | [INFO] [stderr] 1 | pub mod commonCollection; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `common_collection` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: module `tryStringCollection` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | pub mod tryStringCollection; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_string_collection` [INFO] [stderr] [INFO] [stderr] warning: module `tryHashMapCollection` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | pub mod tryHashMapCollection; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map_collection` [INFO] [stderr] [INFO] [stderr] warning: module `recoverableError` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | pub mod recoverableError; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error` [INFO] [stderr] [INFO] [stderr] warning: module `tryGenericTypes` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | pub mod tryGenericTypes; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_generic_types` [INFO] [stderr] [INFO] [stderr] warning: module `tryLifetime` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | pub mod tryLifetime; [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `try_lifetime` [INFO] [stderr] [INFO] [stderr] warning: module `Rectangle` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | pub mod Rectangle; [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `rectangle` [INFO] [stderr] [INFO] [stderr] warning: module `Guess` should have a snake case name [INFO] [stderr] --> src/lessons/mod.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | pub mod Guess; [INFO] [stderr] | ^^^^^ help: convert the identifier to snake case: `guess` [INFO] [stderr] [INFO] [stderr] warning: function `tryCommonCollection` should have a snake case name [INFO] [stderr] --> src/lessons/commonCollection.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | pub fn tryCommonCollection(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_common_collection` [INFO] [stderr] [INFO] [stderr] warning: function `tryUpdateString` should have a snake case name [INFO] [stderr] --> src/lessons/tryStringCollection.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn tryUpdateString(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_update_string` [INFO] [stderr] [INFO] [stderr] warning: function `tryHashMap` should have a snake case name [INFO] [stderr] --> src/lessons/tryHashMapCollection.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | pub fn tryHashMap(){ [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map` [INFO] [stderr] [INFO] [stderr] warning: function `recoverableError` should have a snake case name [INFO] [stderr] --> src/lessons/recoverableError.rs:27:8 [INFO] [stderr] | [INFO] [stderr] 27 | pub fn recoverableError(){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error` [INFO] [stderr] [INFO] [stderr] warning: module `learnClosure` should have a snake case name [INFO] [stderr] --> src/closures/mod.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | pub mod learnClosure; [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_closure` [INFO] [stderr] [INFO] [stderr] warning: module `learnIterator` should have a snake case name [INFO] [stderr] --> src/closures/mod.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | pub mod learnIterator; [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator` [INFO] [stderr] [INFO] [stderr] warning: function `learnIterator` should have a snake case name [INFO] [stderr] --> src/closures/learnIterator.rs:41:8 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn learnIterator(){ [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.97s [INFO] running `"docker" "inspect" "985e71ebfe8afbbb458438f53f23656650ba504d6c17fb5289e490357d90000c"` [INFO] running `"docker" "rm" "-f" "985e71ebfe8afbbb458438f53f23656650ba504d6c17fb5289e490357d90000c"` [INFO] [stdout] 985e71ebfe8afbbb458438f53f23656650ba504d6c17fb5289e490357d90000c [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/anztrax/learnrust:/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"` [INFO] [stdout] 4815012594e162f95bcfecec6162c4dc62da78be73b3e7e808efccd2c5fb8818 [INFO] running `"docker" "start" "-a" "4815012594e162f95bcfecec6162c4dc62da78be73b3e7e808efccd2c5fb8818"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running /opt/crater/target/debug/deps/learnrust-2d33e4f47f1e75d3 [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test adder::another ... ignored [INFO] [stdout] test adder::it_works_using_result ... ignored [INFO] [stdout] test adder::larger_can_hold_smaller ... ok [INFO] [stdout] test adder::test_greeting_name ... ignored [INFO] [stdout] test adder::test_guess_game ... ignored [INFO] [stdout] test adder::test_closure ... ok [INFO] [stdout] test adder::exploration ... ok [INFO] [stdout] test adder::smaller_can_not_hold_larger ... ok [INFO] [stdout] test adder::add_two_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/learnrust-14a6029804ad888c [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/integration_test-8de430f7e2fe4737 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test integration_it_adds_two ... ok [INFO] [stderr] Doc-tests learnrust [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/closures/learnClosure.rs - closures::learnClosure::simulated_expensive_calculation (line 36) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/closures/learnClosure.rs - closures::learnClosure::simulated_expensive_calculation (line 36) stdout ---- [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `my_crate` [INFO] [stdout] --> src/closures/learnClosure.rs:39:15 [INFO] [stdout] | [INFO] [stdout] 5 | assert_eq!(6, my_crate::add_one(5)); [INFO] [stdout] | ^^^^^^^^ use of undeclared type or module `my_crate` [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] thread 'src/closures/learnClosure.rs - closures::learnClosure::simulated_expensive_calculation (line 36)' panicked at 'couldn't compile the test', src/librustdoc/test.rs:319:13 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x7fb8c498d823 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55 [INFO] [stdout] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stdout] 1: 0x7fb8c49854cb - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stdout] 2: 0x7fb8c4989a56 - std::panicking::default_hook::{{closure}}::he20974adbefcc046 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] at src/libstd/panicking.rs:197 [INFO] [stdout] 3: 0x7fb8c498977e - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stdout] at src/libstd/panicking.rs:208 [INFO] [stdout] 4: 0x7fb8c498a15f - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stdout] at src/libstd/panicking.rs:474 [INFO] [stdout] 5: 0x55856d53c784 - std::panicking::begin_panic::h2203228e86eb91b5 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:408 [INFO] [stdout] 6: 0x55856d53268f - rustdoc::test::run_test::h29a20600da33f74f [INFO] [stdout] at src/librustdoc/test.rs:319 [INFO] [stdout] 7: 0x55856d5267c9 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h84ad3bdb52e265e9 [INFO] [stdout] at src/librustdoc/test.rs:715 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/ops/function.rs:231 [INFO] [stdout] 8: 0x7fb8c5f10b7e - as core::ops::function::FnOnce>::call_once::h6b004fa8f4fc1608 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 9: 0x7fb8c5f10b7e - as core::ops::function::FnOnce>::call_once::h6b004fa8f4fc1608 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 10: 0x7fb8c499b169 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 11: 0x7fb8c5f2bf87 - test::run_test::run_test_inner::{{closure}}::h9a4d23c41d058d37 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:272 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:394 [INFO] [stdout] at src/libtest/lib.rs:1468 [INFO] [stdout] 12: 0x7fb8c5f059a4 - std::sys_common::backtrace::__rust_begin_short_backtrace::h3765d76361a33ff7 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/sys_common/backtrace.rs:136 [INFO] [stdout] 13: 0x7fb8c5f09a54 - std::panicking::try::do_call::h6f86e980b52f74d5 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/thread/mod.rs:470 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:315 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:293 [INFO] [stdout] 14: 0x7fb8c499b169 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 15: 0x7fb8c5f0a551 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h760b8a2b155f54c3 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:272 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:394 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/thread/mod.rs:469 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/ops/function.rs:231 [INFO] [stdout] 16: 0x7fb8c496c36e - as core::ops::function::FnOnce>::call_once::h805c3cc89d534c05 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 17: 0x7fb8c4999ddf - std::sys::unix::thread::Thread::new::thread_start::h6f10b78f26c98dc6 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 18: 0x7fb8c45034a3 - start_thread [INFO] [stdout] 19: 0x7fb8c402ed0e - __clone [INFO] [stdout] 20: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/closures/learnClosure.rs - closures::learnClosure::simulated_expensive_calculation (line 36) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `"docker" "inspect" "4815012594e162f95bcfecec6162c4dc62da78be73b3e7e808efccd2c5fb8818"` [INFO] running `"docker" "rm" "-f" "4815012594e162f95bcfecec6162c4dc62da78be73b3e7e808efccd2c5fb8818"` [INFO] [stdout] 4815012594e162f95bcfecec6162c4dc62da78be73b3e7e808efccd2c5fb8818