[INFO] updating cached repository jramos14/Matrix-Operations [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/jramos14/Matrix-Operations [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/jramos14/Matrix-Operations" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jramos14/Matrix-Operations"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jramos14/Matrix-Operations'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/jramos14/Matrix-Operations" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jramos14/Matrix-Operations"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jramos14/Matrix-Operations'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9ebe42742b34b75e71fee96f253fad6cde6fa9ba [INFO] sha for GitHub repo jramos14/Matrix-Operations: 9ebe42742b34b75e71fee96f253fad6cde6fa9ba [INFO] validating manifest of jramos14/Matrix-Operations on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of jramos14/Matrix-Operations on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing jramos14/Matrix-Operations [INFO] finished frobbing jramos14/Matrix-Operations [INFO] frobbed toml for jramos14/Matrix-Operations written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/jramos14/Matrix-Operations/Cargo.toml [INFO] started frobbing jramos14/Matrix-Operations [INFO] finished frobbing jramos14/Matrix-Operations [INFO] frobbed toml for jramos14/Matrix-Operations written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jramos14/Matrix-Operations/Cargo.toml [INFO] crate jramos14/Matrix-Operations already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking jramos14/Matrix-Operations against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/jramos14/Matrix-Operations:/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=forbid" "-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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] a21207ee07800aba645b7064a9cce19b9b864af880a51d06c4b2020eb8f1522e [INFO] running `"docker" "start" "-a" "a21207ee07800aba645b7064a9cce19b9b864af880a51d06c4b2020eb8f1522e"` [INFO] [stderr] Checking your v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::ops::Add` [INFO] [stderr] --> src/lib.rs:117:5 [INFO] [stderr] | [INFO] [stderr] 117 | use std::ops::Add; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stack1` [INFO] [stderr] --> src/lib.rs:235:13 [INFO] [stderr] | [INFO] [stderr] 235 | let mut stack1: Vec = vec![]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stack1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stack2` [INFO] [stderr] --> src/lib.rs:236:13 [INFO] [stderr] | [INFO] [stderr] 236 | let mut stack2: Vec = vec![]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stack2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stack3` [INFO] [stderr] --> src/lib.rs:237:13 [INFO] [stderr] | [INFO] [stderr] 237 | let mut stack3: Vec = vec![]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stack3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `empty_stack` [INFO] [stderr] --> src/lib.rs:238:13 [INFO] [stderr] | [INFO] [stderr] 238 | let mut empty_stack: Vec = vec![]; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_empty_stack` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `columnIndex` [INFO] [stderr] --> src/lib.rs:358:17 [INFO] [stderr] | [INFO] [stderr] 358 | let mut columnIndex = 0; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_columnIndex` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:146:9 [INFO] [stderr] | [INFO] [stderr] 146 | let mut empty_vec = Vec::new(); [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:183:13 [INFO] [stderr] | [INFO] [stderr] 183 | let mut size = self.row * self.col; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:210:13 [INFO] [stderr] | [INFO] [stderr] 210 | let mut size = self.row * self.col; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:235:9 [INFO] [stderr] | [INFO] [stderr] 235 | let mut stack1: Vec = vec![]; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:236:9 [INFO] [stderr] | [INFO] [stderr] 236 | let mut stack2: Vec = vec![]; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:237:9 [INFO] [stderr] | [INFO] [stderr] 237 | let mut stack3: Vec = vec![]; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:238:9 [INFO] [stderr] | [INFO] [stderr] 238 | let mut empty_stack: Vec = vec![]; [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:356:13 [INFO] [stderr] | [INFO] [stderr] 356 | let mut stringSpace = " "; [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:357:13 [INFO] [stderr] | [INFO] [stderr] 357 | let mut stringNewline = "\n"; [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:358:13 [INFO] [stderr] | [INFO] [stderr] 358 | let mut columnIndex = 0; [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:372:21 [INFO] [stderr] | [INFO] [stderr] 372 | let mut stringElement : String = self.data[k].to_string(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:380:21 [INFO] [stderr] | [INFO] [stderr] 380 | let mut stringElement : String = self.data[k].to_string(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable `resultMatrix` should have a snake case name [INFO] [stderr] --> src/lib.rs:355:17 [INFO] [stderr] | [INFO] [stderr] 355 | let mut resultMatrix = "".to_string(); [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `result_matrix` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `stringSpace` should have a snake case name [INFO] [stderr] --> src/lib.rs:356:17 [INFO] [stderr] | [INFO] [stderr] 356 | let mut stringSpace = " "; [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `string_space` [INFO] [stderr] [INFO] [stderr] warning: variable `stringNewline` should have a snake case name [INFO] [stderr] --> src/lib.rs:357:17 [INFO] [stderr] | [INFO] [stderr] 357 | let mut stringNewline = "\n"; [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_newline` [INFO] [stderr] [INFO] [stderr] warning: variable `columnIndex` should have a snake case name [INFO] [stderr] --> src/lib.rs:358:17 [INFO] [stderr] | [INFO] [stderr] 358 | let mut columnIndex = 0; [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `column_index` [INFO] [stderr] [INFO] [stderr] warning: variable `stringElement` should have a snake case name [INFO] [stderr] --> src/lib.rs:372:25 [INFO] [stderr] | [INFO] [stderr] 372 | let mut stringElement : String = self.data[k].to_string(); [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element` [INFO] [stderr] [INFO] [stderr] warning: variable `stringElement` should have a snake case name [INFO] [stderr] --> src/lib.rs:380:25 [INFO] [stderr] | [INFO] [stderr] 380 | let mut stringElement : String = self.data[k].to_string(); [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element` [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Add` [INFO] [stderr] --> src/lib.rs:117:5 [INFO] [stderr] | [INFO] [stderr] 117 | use std::ops::Add; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stack1` [INFO] [stderr] --> src/lib.rs:235:13 [INFO] [stderr] | [INFO] [stderr] 235 | let mut stack1: Vec = vec![]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stack1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stack2` [INFO] [stderr] --> src/lib.rs:236:13 [INFO] [stderr] | [INFO] [stderr] 236 | let mut stack2: Vec = vec![]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stack2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `stack3` [INFO] [stderr] --> src/lib.rs:237:13 [INFO] [stderr] | [INFO] [stderr] 237 | let mut stack3: Vec = vec![]; [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_stack3` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `empty_stack` [INFO] [stderr] --> src/lib.rs:238:13 [INFO] [stderr] | [INFO] [stderr] 238 | let mut empty_stack: Vec = vec![]; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_empty_stack` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `columnIndex` [INFO] [stderr] --> src/lib.rs:358:17 [INFO] [stderr] | [INFO] [stderr] 358 | let mut columnIndex = 0; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_columnIndex` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:146:9 [INFO] [stderr] | [INFO] [stderr] 146 | let mut empty_vec = Vec::new(); [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:183:13 [INFO] [stderr] | [INFO] [stderr] 183 | let mut size = self.row * self.col; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:210:13 [INFO] [stderr] | [INFO] [stderr] 210 | let mut size = self.row * self.col; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:235:9 [INFO] [stderr] | [INFO] [stderr] 235 | let mut stack1: Vec = vec![]; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:236:9 [INFO] [stderr] | [INFO] [stderr] 236 | let mut stack2: Vec = vec![]; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:237:9 [INFO] [stderr] | [INFO] [stderr] 237 | let mut stack3: Vec = vec![]; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:238:9 [INFO] [stderr] | [INFO] [stderr] 238 | let mut empty_stack: Vec = vec![]; [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:356:13 [INFO] [stderr] | [INFO] [stderr] 356 | let mut stringSpace = " "; [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:357:13 [INFO] [stderr] | [INFO] [stderr] 357 | let mut stringNewline = "\n"; [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:358:13 [INFO] [stderr] | [INFO] [stderr] 358 | let mut columnIndex = 0; [INFO] [stderr] | ----^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:372:21 [INFO] [stderr] | [INFO] [stderr] 372 | let mut stringElement : String = self.data[k].to_string(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:380:21 [INFO] [stderr] | [INFO] [stderr] 380 | let mut stringElement : String = self.data[k].to_string(); [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable `resultMatrix` should have a snake case name [INFO] [stderr] --> src/lib.rs:355:17 [INFO] [stderr] | [INFO] [stderr] 355 | let mut resultMatrix = "".to_string(); [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `result_matrix` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `stringSpace` should have a snake case name [INFO] [stderr] --> src/lib.rs:356:17 [INFO] [stderr] | [INFO] [stderr] 356 | let mut stringSpace = " "; [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `string_space` [INFO] [stderr] [INFO] [stderr] warning: variable `stringNewline` should have a snake case name [INFO] [stderr] --> src/lib.rs:357:17 [INFO] [stderr] | [INFO] [stderr] 357 | let mut stringNewline = "\n"; [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_newline` [INFO] [stderr] [INFO] [stderr] warning: variable `columnIndex` should have a snake case name [INFO] [stderr] --> src/lib.rs:358:17 [INFO] [stderr] | [INFO] [stderr] 358 | let mut columnIndex = 0; [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `column_index` [INFO] [stderr] [INFO] [stderr] warning: variable `stringElement` should have a snake case name [INFO] [stderr] --> src/lib.rs:372:25 [INFO] [stderr] | [INFO] [stderr] 372 | let mut stringElement : String = self.data[k].to_string(); [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element` [INFO] [stderr] [INFO] [stderr] warning: variable `stringElement` should have a snake case name [INFO] [stderr] --> src/lib.rs:380:25 [INFO] [stderr] | [INFO] [stderr] 380 | let mut stringElement : String = self.data[k].to_string(); [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `string_element` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.26s [INFO] running `"docker" "inspect" "a21207ee07800aba645b7064a9cce19b9b864af880a51d06c4b2020eb8f1522e"` [INFO] running `"docker" "rm" "-f" "a21207ee07800aba645b7064a9cce19b9b864af880a51d06c4b2020eb8f1522e"` [INFO] [stdout] a21207ee07800aba645b7064a9cce19b9b864af880a51d06c4b2020eb8f1522e