[INFO] updating cached repository sivanbecker/temp_converter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sivanbecker/temp_converter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sivanbecker/temp_converter" "work/ex/beta-1.38-1/sources/1.37.0/gh/sivanbecker/temp_converter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sivanbecker/temp_converter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sivanbecker/temp_converter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sivanbecker/temp_converter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sivanbecker/temp_converter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 115c560a19a98bd40bee2cace8301b7061984a42
[INFO] sha for GitHub repo sivanbecker/temp_converter: 115c560a19a98bd40bee2cace8301b7061984a42
[INFO] validating manifest of sivanbecker/temp_converter 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 sivanbecker/temp_converter 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 sivanbecker/temp_converter
[INFO] finished frobbing sivanbecker/temp_converter
[INFO] frobbed toml for sivanbecker/temp_converter written to work/ex/beta-1.38-1/sources/1.37.0/gh/sivanbecker/temp_converter/Cargo.toml
[INFO] started frobbing sivanbecker/temp_converter
[INFO] finished frobbing sivanbecker/temp_converter
[INFO] frobbed toml for sivanbecker/temp_converter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sivanbecker/temp_converter/Cargo.toml
[INFO] crate sivanbecker/temp_converter 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 sivanbecker/temp_converter against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sivanbecker/temp_converter:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 4b80f9874b20f94342fd54d5ffebc850d694fab5ae2d39f9c41d6bb4bfc4c075
[INFO] running `"docker" "start" "-a" "4b80f9874b20f94342fd54d5ffebc850d694fab5ae2d39f9c41d6bb4bfc4c075"`
[INFO] [stderr]    Compiling temp_converter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]   --> src/main.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |         let g: f32 = match input_tempature.trim().parse() {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_g`
[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:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |                 let mut c_temprature: f32 = (num - 32.0) * 5.0 / 9.0;
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "4b80f9874b20f94342fd54d5ffebc850d694fab5ae2d39f9c41d6bb4bfc4c075"`
[INFO] running `"docker" "rm" "-f" "4b80f9874b20f94342fd54d5ffebc850d694fab5ae2d39f9c41d6bb4bfc4c075"`
[INFO] [stdout] 4b80f9874b20f94342fd54d5ffebc850d694fab5ae2d39f9c41d6bb4bfc4c075
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sivanbecker/temp_converter:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 11ded009cbcc8660c531e1c4970d057ca62abf6dafe5586e69433d8c12b32ffe
[INFO] running `"docker" "start" "-a" "11ded009cbcc8660c531e1c4970d057ca62abf6dafe5586e69433d8c12b32ffe"`
[INFO] [stderr]    Compiling temp_converter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]   --> src/main.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |         let g: f32 = match input_tempature.trim().parse() {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_g`
[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:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |                 let mut c_temprature: f32 = (num - 32.0) * 5.0 / 9.0;
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "11ded009cbcc8660c531e1c4970d057ca62abf6dafe5586e69433d8c12b32ffe"`
[INFO] running `"docker" "rm" "-f" "11ded009cbcc8660c531e1c4970d057ca62abf6dafe5586e69433d8c12b32ffe"`
[INFO] [stdout] 11ded009cbcc8660c531e1c4970d057ca62abf6dafe5586e69433d8c12b32ffe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sivanbecker/temp_converter:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] ae49e017a7d4001e43e32e6dac1b36af454791d7fbcfa997e0ae965678e67cbc
[INFO] running `"docker" "start" "-a" "ae49e017a7d4001e43e32e6dac1b36af454791d7fbcfa997e0ae965678e67cbc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/temp_converter-faf2bae97eb291db
[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" "ae49e017a7d4001e43e32e6dac1b36af454791d7fbcfa997e0ae965678e67cbc"`
[INFO] running `"docker" "rm" "-f" "ae49e017a7d4001e43e32e6dac1b36af454791d7fbcfa997e0ae965678e67cbc"`
[INFO] [stdout] ae49e017a7d4001e43e32e6dac1b36af454791d7fbcfa997e0ae965678e67cbc