[INFO] crate ConExpression 0.1.0 is already in cache
[INFO] extracting crate ConExpression 0.1.0 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/ConExpression/0.1.0
[INFO] extracting crate ConExpression 0.1.0 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/ConExpression/0.1.0
[INFO] validating manifest of ConExpression-0.1.0 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ConExpression-0.1.0 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ConExpression-0.1.0
[INFO] finished frobbing ConExpression-0.1.0
[INFO] frobbed toml for ConExpression-0.1.0 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/ConExpression/0.1.0/Cargo.toml
[INFO] started frobbing ConExpression-0.1.0
[INFO] finished frobbing ConExpression-0.1.0
[INFO] frobbed toml for ConExpression-0.1.0 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/ConExpression/0.1.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ConExpression-0.1.0 against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-0/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/ConExpression/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 77cd2c0f99f0d2e8dc76d8d48ac993e4d4a69f6d409c3fb3ae204a8e87a0a6d7
[INFO] running `"docker" "start" "-a" "77cd2c0f99f0d2e8dc76d8d48ac993e4d4a69f6d409c3fb3ae204a8e87a0a6d7"`
[INFO] [stderr]     Checking ConExpression v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `ConExpression` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `con_expression`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]  --> src/lib.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     use super::*;
[INFO] [stderr]   |         ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `ConExpression` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `con_expression`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_assert__ok` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn test_assert__ok() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_assert_ok`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_assert__failed` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn test_assert__failed() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_assert_failed`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_assert_eq__ok` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn test_assert_eq__ok() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_assert_eq_ok`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_assert_eq__failed` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn test_assert_eq__failed() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_assert_eq_failed`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_assert_ne__ok` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn test_assert_ne__ok() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_assert_ne_ok`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_assert_ne__failed` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn test_assert_ne__failed() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_assert_ne_failed`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_assert_should_panic__ok` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn test_assert_should_panic__ok() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_assert_should_panic_ok`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_assert_should_panic__failed` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:53:8
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn test_assert_should_panic__failed() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_assert_should_panic_failed`
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_assert_should_panic__failed_no_panic` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn test_assert_should_panic__failed_no_panic() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_assert_should_panic_failed_no_panic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait `iinstruction` should have an upper camel case name
[INFO] [stderr]  --> src/icontract/mod.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub trait iinstruction {
[INFO] [stderr]   |           ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `Iinstruction`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ichannel` should have an upper camel case name
[INFO] [stderr]  --> src/icontract/mod.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub trait ichannel {
[INFO] [stderr]   |           ^^^^^^^^ help: convert the identifier to upper camel case: `Ichannel`
[INFO] [stderr] 
[INFO] [stderr] warning: type `Instruction_OCR` should have an upper camel case name
[INFO] [stderr]   --> src/icontract/mod.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct Instruction_OCR {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `InstructionOcr`
[INFO] [stderr] 
[INFO] [stderr] warning: type `Instruction_Temp` should have an upper camel case name
[INFO] [stderr]   --> src/icontract/mod.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub struct Instruction_Temp {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `InstructionTemp`
[INFO] [stderr] 
[INFO] [stderr] warning: trait `iinstruction` should have an upper camel case name
[INFO] [stderr]  --> src/icontract/mod.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub trait iinstruction {
[INFO] [stderr]   |           ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `Iinstruction`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ichannel` should have an upper camel case name
[INFO] [stderr]  --> src/icontract/mod.rs:7:11
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub trait ichannel {
[INFO] [stderr]   |           ^^^^^^^^ help: convert the identifier to upper camel case: `Ichannel`
[INFO] [stderr] 
[INFO] [stderr] warning: type `Instruction_OCR` should have an upper camel case name
[INFO] [stderr]   --> src/icontract/mod.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct Instruction_OCR {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `InstructionOcr`
[INFO] [stderr] 
[INFO] [stderr] warning: type `Instruction_Temp` should have an upper camel case name
[INFO] [stderr]   --> src/icontract/mod.rs:46:12
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub struct Instruction_Temp {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `InstructionTemp`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     println!();
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/main.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     println!();
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/main.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let f = File::open(filename)?;
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `robot_agent_bm`
[INFO] [stderr]    --> src/main.rs:265:9
[INFO] [stderr]     |
[INFO] [stderr] 265 |     let robot_agent_bm: &'static str = "R1";
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_robot_agent_bm`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `robot_device_id`
[INFO] [stderr]    --> src/main.rs:266:9
[INFO] [stderr]     |
[INFO] [stderr] 266 |     let robot_device_id: &'static str = "99";
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_robot_device_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `home`
[INFO] [stderr]    --> src/main.rs:329:9
[INFO] [stderr]     |
[INFO] [stderr] 329 |     let home = "127.0.0.1".parse::<IpAddr>().unwrap();
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_home`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `one`
[INFO] [stderr]   --> src/hashmap/mod.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |         let one = map.get("One");
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_one`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `derection` is never read
[INFO] [stderr]   --> src/icontract/mod.rs:81:17
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let mut derection: i32 = 0;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hashmap/mod.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut scores: HashMap<_, _> = keys.iter().zip(values.iter()).collect();
[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: variant is never constructed: `V6`
[INFO] [stderr]   --> src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     V6,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V6`
[INFO] [stderr]   --> src/main.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     V6
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V6`
[INFO] [stderr]   --> src/main.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     V6
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stderr]    --> src/main.rs:515:1
[INFO] [stderr]     |
[INFO] [stderr] 515 | fn simulated_expensive_calculation(intensity:i32)->i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `ConExpression` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `con_expression`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:262:5
[INFO] [stderr]     |
[INFO] [stderr] 262 |     file.read_to_string(&mut content);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `numberIndex` should have a snake case name
[INFO] [stderr]  --> src/math/mod.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut numberIndex = 0;
[INFO] [stderr]   |             ^^^^^^^^^^^ help: convert the identifier to snake case: `number_index`
[INFO] [stderr] 
[INFO] [stderr] warning: trait method `toInstruction` should have a snake case name
[INFO] [stderr]  --> src/icontract/mod.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn toInstruction(&self) -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `to_instruction`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/main.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let f = File::open(filename)?;
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `robot_agent_bm`
[INFO] [stderr]    --> src/main.rs:265:9
[INFO] [stderr]     |
[INFO] [stderr] 265 |     let robot_agent_bm: &'static str = "R1";
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_robot_agent_bm`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `robot_device_id`
[INFO] [stderr]    --> src/main.rs:266:9
[INFO] [stderr]     |
[INFO] [stderr] 266 |     let robot_device_id: &'static str = "99";
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_robot_device_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `home`
[INFO] [stderr]    --> src/main.rs:329:9
[INFO] [stderr]     |
[INFO] [stderr] 329 |     let home = "127.0.0.1".parse::<IpAddr>().unwrap();
[INFO] [stderr]     |         ^^^^ help: consider prefixing with an underscore: `_home`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `one`
[INFO] [stderr]   --> src/hashmap/mod.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |         let one = map.get("One");
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_one`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `derection` is never read
[INFO] [stderr]   --> src/icontract/mod.rs:81:17
[INFO] [stderr]    |
[INFO] [stderr] 81 |         let mut derection: i32 = 0;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hashmap/mod.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut scores: HashMap<_, _> = keys.iter().zip(values.iter()).collect();
[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: variant is never constructed: `V6`
[INFO] [stderr]   --> src/main.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     V6,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V6`
[INFO] [stderr]   --> src/main.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     V6
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `V6`
[INFO] [stderr]   --> src/main.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     V6
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stderr]    --> src/main.rs:515:1
[INFO] [stderr]     |
[INFO] [stderr] 515 | fn simulated_expensive_calculation(intensity:i32)->i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `ConExpression` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `con_expression`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:262:5
[INFO] [stderr]     |
[INFO] [stderr] 262 |     file.read_to_string(&mut content);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `numberIndex` should have a snake case name
[INFO] [stderr]  --> src/math/mod.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let mut numberIndex = 0;
[INFO] [stderr]   |             ^^^^^^^^^^^ help: convert the identifier to snake case: `number_index`
[INFO] [stderr] 
[INFO] [stderr] warning: trait method `toInstruction` should have a snake case name
[INFO] [stderr]  --> src/icontract/mod.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 |     fn toInstruction(&self) -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `to_instruction`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "77cd2c0f99f0d2e8dc76d8d48ac993e4d4a69f6d409c3fb3ae204a8e87a0a6d7"`
[INFO] running `"docker" "rm" "-f" "77cd2c0f99f0d2e8dc76d8d48ac993e4d4a69f6d409c3fb3ae204a8e87a0a6d7"`
[INFO] [stdout] 77cd2c0f99f0d2e8dc76d8d48ac993e4d4a69f6d409c3fb3ae204a8e87a0a6d7