[INFO] updating cached repository vksmgr/com_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vksmgr/com_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vksmgr/com_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/vksmgr/com_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vksmgr/com_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vksmgr/com_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vksmgr/com_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vksmgr/com_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 124c7a0a402896ea4c95af78beef61c9f5f55785
[INFO] sha for GitHub repo vksmgr/com_rust: 124c7a0a402896ea4c95af78beef61c9f5f55785
[INFO] validating manifest of vksmgr/com_rust on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vksmgr/com_rust on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vksmgr/com_rust
[INFO] finished frobbing vksmgr/com_rust
[INFO] frobbed toml for vksmgr/com_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/vksmgr/com_rust/Cargo.toml
[INFO] started frobbing vksmgr/com_rust
[INFO] finished frobbing vksmgr/com_rust
[INFO] frobbed toml for vksmgr/com_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vksmgr/com_rust/Cargo.toml
[INFO] crate vksmgr/com_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vksmgr/com_rust against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vksmgr/com_rust:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 6e6e163eabb1a445f8fb7555b29765ff00ec6076d4828d1fc683f740368916db
[INFO] running `"docker" "start" "-a" "6e6e163eabb1a445f8fb7555b29765ff00ec6076d4828d1fc683f740368916db"`
[INFO] [stderr]    Compiling com_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function `readString` should have a snake case name
[INFO] [stderr]   --> src/m-lib/lib.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn readString(strg: &mut Vec<char>) {
[INFO] [stderr]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `read_string`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `readInt32` should have a snake case name
[INFO] [stderr]   --> src/m-lib/lib.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn readInt32() -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^ help: convert the identifier to snake case: `read_int32`
[INFO] [stderr] 
[INFO] [stderr] warning: function `readInt16` should have a snake case name
[INFO] [stderr]   --> src/m-lib/lib.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn readInt16() -> i16 {
[INFO] [stderr]    |        ^^^^^^^^^ help: convert the identifier to snake case: `read_int16`
[INFO] [stderr] 
[INFO] [stderr] warning: function `readInt8` should have a snake case name
[INFO] [stderr]   --> src/m-lib/lib.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn readInt8() -> i8 {
[INFO] [stderr]    |        ^^^^^^^^ help: convert the identifier to snake case: `read_int8`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/que/strings/solve.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `strg`
[INFO] [stderr]  --> src/main.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut strg: Vec<char> = Vec::new();
[INFO] [stderr]   |             ^^^^ help: consider prefixing with an underscore: `_strg`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut strg: Vec<char> = 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: function is never used: `jumble_letter`
[INFO] [stderr]   --> src/que/strings/solve.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn jumble_letter(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let T = readInt32();
[INFO] [stderr]   |         ^ help: convert the identifier to snake case: `t`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "6e6e163eabb1a445f8fb7555b29765ff00ec6076d4828d1fc683f740368916db"`
[INFO] running `"docker" "rm" "-f" "6e6e163eabb1a445f8fb7555b29765ff00ec6076d4828d1fc683f740368916db"`
[INFO] [stdout] 6e6e163eabb1a445f8fb7555b29765ff00ec6076d4828d1fc683f740368916db
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vksmgr/com_rust:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 513bbffbcb5fd6ec220fad705bcca677c007f0eb67cdbe406c113f9a9ade2278
[INFO] running `"docker" "start" "-a" "513bbffbcb5fd6ec220fad705bcca677c007f0eb67cdbe406c113f9a9ade2278"`
[INFO] [stderr]    Compiling com_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/que/strings/solve.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `strg`
[INFO] [stderr]  --> src/main.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut strg: Vec<char> = Vec::new();
[INFO] [stderr]   |             ^^^^ help: consider prefixing with an underscore: `_strg`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut strg: Vec<char> = 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: function is never used: `jumble_letter`
[INFO] [stderr]   --> src/que/strings/solve.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn jumble_letter(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `T` should have a snake case name
[INFO] [stderr]  --> src/main.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let T = readInt32();
[INFO] [stderr]   |         ^ help: convert the identifier to snake case: `t`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `readString` should have a snake case name
[INFO] [stderr]   --> src/m-lib/lib.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn readString(strg: &mut Vec<char>) {
[INFO] [stderr]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `read_string`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `readInt32` should have a snake case name
[INFO] [stderr]   --> src/m-lib/lib.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn readInt32() -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^ help: convert the identifier to snake case: `read_int32`
[INFO] [stderr] 
[INFO] [stderr] warning: function `readInt16` should have a snake case name
[INFO] [stderr]   --> src/m-lib/lib.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn readInt16() -> i16 {
[INFO] [stderr]    |        ^^^^^^^^^ help: convert the identifier to snake case: `read_int16`
[INFO] [stderr] 
[INFO] [stderr] warning: function `readInt8` should have a snake case name
[INFO] [stderr]   --> src/m-lib/lib.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn readInt8() -> i8 {
[INFO] [stderr]    |        ^^^^^^^^ help: convert the identifier to snake case: `read_int8`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "513bbffbcb5fd6ec220fad705bcca677c007f0eb67cdbe406c113f9a9ade2278"`
[INFO] running `"docker" "rm" "-f" "513bbffbcb5fd6ec220fad705bcca677c007f0eb67cdbe406c113f9a9ade2278"`
[INFO] [stdout] 513bbffbcb5fd6ec220fad705bcca677c007f0eb67cdbe406c113f9a9ade2278
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vksmgr/com_rust:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 33ff3f3c4008e60882fdf8e3332fc13cfad84a7a0b122ebb655447e28542ed13
[INFO] running `"docker" "start" "-a" "33ff3f3c4008e60882fdf8e3332fc13cfad84a7a0b122ebb655447e28542ed13"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mlib-2c9cf997403fb635
[INFO] [stderr]      Running /opt/crater/target/debug/deps/comrust-de793405f13df515
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mlib
[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] [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] [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] running `"docker" "inspect" "33ff3f3c4008e60882fdf8e3332fc13cfad84a7a0b122ebb655447e28542ed13"`
[INFO] running `"docker" "rm" "-f" "33ff3f3c4008e60882fdf8e3332fc13cfad84a7a0b122ebb655447e28542ed13"`
[INFO] [stdout] 33ff3f3c4008e60882fdf8e3332fc13cfad84a7a0b122ebb655447e28542ed13