[INFO] updating cached repository DdZ-Fred/rust_temperature_converter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DdZ-Fred/rust_temperature_converter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DdZ-Fred/rust_temperature_converter" "work/ex/beta-1.38-1/sources/1.37.0/gh/DdZ-Fred/rust_temperature_converter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DdZ-Fred/rust_temperature_converter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DdZ-Fred/rust_temperature_converter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DdZ-Fred/rust_temperature_converter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DdZ-Fred/rust_temperature_converter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 98b3f98e1ffc488bbee58d827efb31a58abd5115
[INFO] sha for GitHub repo DdZ-Fred/rust_temperature_converter: 98b3f98e1ffc488bbee58d827efb31a58abd5115
[INFO] validating manifest of DdZ-Fred/rust_temperature_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 DdZ-Fred/rust_temperature_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 DdZ-Fred/rust_temperature_converter
[INFO] finished frobbing DdZ-Fred/rust_temperature_converter
[INFO] frobbed toml for DdZ-Fred/rust_temperature_converter written to work/ex/beta-1.38-1/sources/1.37.0/gh/DdZ-Fred/rust_temperature_converter/Cargo.toml
[INFO] started frobbing DdZ-Fred/rust_temperature_converter
[INFO] finished frobbing DdZ-Fred/rust_temperature_converter
[INFO] frobbed toml for DdZ-Fred/rust_temperature_converter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DdZ-Fred/rust_temperature_converter/Cargo.toml
[INFO] crate DdZ-Fred/rust_temperature_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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing DdZ-Fred/rust_temperature_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-7/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/DdZ-Fred/rust_temperature_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] 0331f1d271409a6d7f5141691c364cca809844679c0286a6cc65b072c6a4ddfe
[INFO] running `"docker" "start" "-a" "0331f1d271409a6d7f5141691c364cca809844679c0286a6cc65b072c6a4ddfe"`
[INFO] [stderr]    Compiling rust_temperature_converter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "0331f1d271409a6d7f5141691c364cca809844679c0286a6cc65b072c6a4ddfe"`
[INFO] running `"docker" "rm" "-f" "0331f1d271409a6d7f5141691c364cca809844679c0286a6cc65b072c6a4ddfe"`
[INFO] [stdout] 0331f1d271409a6d7f5141691c364cca809844679c0286a6cc65b072c6a4ddfe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/DdZ-Fred/rust_temperature_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] 7096238f4c52808b2f11ae8a195f67b4e2ad39af9423d9e1adc94f42ba552125
[INFO] running `"docker" "start" "-a" "7096238f4c52808b2f11ae8a195f67b4e2ad39af9423d9e1adc94f42ba552125"`
[INFO] [stderr]    Compiling rust_temperature_converter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::num::ParseIntError`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::num::ParseIntError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "7096238f4c52808b2f11ae8a195f67b4e2ad39af9423d9e1adc94f42ba552125"`
[INFO] running `"docker" "rm" "-f" "7096238f4c52808b2f11ae8a195f67b4e2ad39af9423d9e1adc94f42ba552125"`
[INFO] [stdout] 7096238f4c52808b2f11ae8a195f67b4e2ad39af9423d9e1adc94f42ba552125
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/DdZ-Fred/rust_temperature_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] 292ec678008819f9ccb793ad292d91b494cb458a3cce9b0802a5368f4b31e5b7
[INFO] running `"docker" "start" "-a" "292ec678008819f9ccb793ad292d91b494cb458a3cce9b0802a5368f4b31e5b7"`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_temperature_converter-be068c191524c3c2
[INFO] running `"docker" "inspect" "292ec678008819f9ccb793ad292d91b494cb458a3cce9b0802a5368f4b31e5b7"`
[INFO] running `"docker" "rm" "-f" "292ec678008819f9ccb793ad292d91b494cb458a3cce9b0802a5368f4b31e5b7"`
[INFO] [stdout] 292ec678008819f9ccb793ad292d91b494cb458a3cce9b0802a5368f4b31e5b7