[INFO] updating cached repository ThatsGobbles/failure-test
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ThatsGobbles/failure-test
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ThatsGobbles/failure-test" "work/ex/beta-1.37-6/sources/1.36.0/gh/ThatsGobbles/failure-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ThatsGobbles/failure-test'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ThatsGobbles/failure-test" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ThatsGobbles/failure-test"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ThatsGobbles/failure-test'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 77db22cc2c0d5d2663efed45739ac37c96219a81
[INFO] sha for GitHub repo ThatsGobbles/failure-test: 77db22cc2c0d5d2663efed45739ac37c96219a81
[INFO] validating manifest of ThatsGobbles/failure-test on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ThatsGobbles/failure-test on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ThatsGobbles/failure-test
[INFO] finished frobbing ThatsGobbles/failure-test
[INFO] frobbed toml for ThatsGobbles/failure-test written to work/ex/beta-1.37-6/sources/1.36.0/gh/ThatsGobbles/failure-test/Cargo.toml
[INFO] started frobbing ThatsGobbles/failure-test
[INFO] finished frobbing ThatsGobbles/failure-test
[INFO] frobbed toml for ThatsGobbles/failure-test written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ThatsGobbles/failure-test/Cargo.toml
[INFO] crate ThatsGobbles/failure-test already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ThatsGobbles/failure-test against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ThatsGobbles/failure-test:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 6b3849c7b18cf01ec87b4044b36f26930a9fb66c5cf20ea5b643886a8a18a0aa
[INFO] running `"docker" "start" "-a" "6b3849c7b18cf01ec87b4044b36f26930a9fb66c5cf20ea5b643886a8a18a0aa"`
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling failure v0.1.2
[INFO] [stderr]    Compiling failure-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `ErrorA1`
[INFO] [stderr]  --> src/custom_fail_type.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     ErrorA1(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ErrorA2`
[INFO] [stderr]  --> src/custom_fail_type.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     ErrorA2(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ErrorB1`
[INFO] [stderr]   --> src/custom_fail_type.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ErrorB1(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ErrorB2`
[INFO] [stderr]   --> src/custom_fail_type.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ErrorB2(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `example`
[INFO] [stderr]   --> src/custom_fail_type.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn example() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.97s
[INFO] running `"docker" "inspect" "6b3849c7b18cf01ec87b4044b36f26930a9fb66c5cf20ea5b643886a8a18a0aa"`
[INFO] running `"docker" "rm" "-f" "6b3849c7b18cf01ec87b4044b36f26930a9fb66c5cf20ea5b643886a8a18a0aa"`
[INFO] [stdout] 6b3849c7b18cf01ec87b4044b36f26930a9fb66c5cf20ea5b643886a8a18a0aa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ThatsGobbles/failure-test:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0b0f664a0ea9948ffa3a5c48878a6f6ac2756c211f6fa5c06c335cbd4a6b28ad
[INFO] running `"docker" "start" "-a" "0b0f664a0ea9948ffa3a5c48878a6f6ac2756c211f6fa5c06c335cbd4a6b28ad"`
[INFO] [stderr]    Compiling failure-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `ErrorA1`
[INFO] [stderr]  --> src/custom_fail_type.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     ErrorA1(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ErrorA2`
[INFO] [stderr]  --> src/custom_fail_type.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     ErrorA2(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ErrorB1`
[INFO] [stderr]   --> src/custom_fail_type.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     ErrorB1(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ErrorB2`
[INFO] [stderr]   --> src/custom_fail_type.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ErrorB2(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `example`
[INFO] [stderr]   --> src/custom_fail_type.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn example() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "0b0f664a0ea9948ffa3a5c48878a6f6ac2756c211f6fa5c06c335cbd4a6b28ad"`
[INFO] running `"docker" "rm" "-f" "0b0f664a0ea9948ffa3a5c48878a6f6ac2756c211f6fa5c06c335cbd4a6b28ad"`
[INFO] [stdout] 0b0f664a0ea9948ffa3a5c48878a6f6ac2756c211f6fa5c06c335cbd4a6b28ad
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ThatsGobbles/failure-test:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] b600e4fa0f76a3f66abb5b6fb2075d98641efc0d16224a6e4f70bfae13804372
[INFO] running `"docker" "start" "-a" "b600e4fa0f76a3f66abb5b6fb2075d98641efc0d16224a6e4f70bfae13804372"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/failure_test-0f9af303467d4eeb
[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" "b600e4fa0f76a3f66abb5b6fb2075d98641efc0d16224a6e4f70bfae13804372"`
[INFO] running `"docker" "rm" "-f" "b600e4fa0f76a3f66abb5b6fb2075d98641efc0d16224a6e4f70bfae13804372"`
[INFO] [stdout] b600e4fa0f76a3f66abb5b6fb2075d98641efc0d16224a6e4f70bfae13804372