[INFO] updating cached repository pierrechevalier83/gossip_scribe
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pierrechevalier83/gossip_scribe
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pierrechevalier83/gossip_scribe" "work/ex/beta-1.37-6/sources/1.36.0/gh/pierrechevalier83/gossip_scribe"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/pierrechevalier83/gossip_scribe'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pierrechevalier83/gossip_scribe" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pierrechevalier83/gossip_scribe"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pierrechevalier83/gossip_scribe'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52e8d9ed2a9e6c0e00d7e8b84fb10b6896c31daf
[INFO] sha for GitHub repo pierrechevalier83/gossip_scribe: 52e8d9ed2a9e6c0e00d7e8b84fb10b6896c31daf
[INFO] validating manifest of pierrechevalier83/gossip_scribe 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 pierrechevalier83/gossip_scribe 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 pierrechevalier83/gossip_scribe
[INFO] finished frobbing pierrechevalier83/gossip_scribe
[INFO] frobbed toml for pierrechevalier83/gossip_scribe written to work/ex/beta-1.37-6/sources/1.36.0/gh/pierrechevalier83/gossip_scribe/Cargo.toml
[INFO] started frobbing pierrechevalier83/gossip_scribe
[INFO] finished frobbing pierrechevalier83/gossip_scribe
[INFO] frobbed toml for pierrechevalier83/gossip_scribe written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pierrechevalier83/gossip_scribe/Cargo.toml
[INFO] crate pierrechevalier83/gossip_scribe 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing pierrechevalier83/gossip_scribe 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/pierrechevalier83/gossip_scribe:/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] 12f50f5379762c026f3fb2c36f6498ee8838c9f3200b0bd975edf96954be9d81
[INFO] running `"docker" "start" "-a" "12f50f5379762c026f3fb2c36f6498ee8838c9f3200b0bd975edf96954be9d81"`
[INFO] [stderr]    Compiling gossip_scribe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `GossipEvent`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct GossipEvent {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Node {
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "12f50f5379762c026f3fb2c36f6498ee8838c9f3200b0bd975edf96954be9d81"`
[INFO] running `"docker" "rm" "-f" "12f50f5379762c026f3fb2c36f6498ee8838c9f3200b0bd975edf96954be9d81"`
[INFO] [stdout] 12f50f5379762c026f3fb2c36f6498ee8838c9f3200b0bd975edf96954be9d81
[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/pierrechevalier83/gossip_scribe:/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] 0a1f08d6181111d1600a14980eaccc8392e11635d0a80b355a29fb41c671e034
[INFO] running `"docker" "start" "-a" "0a1f08d6181111d1600a14980eaccc8392e11635d0a80b355a29fb41c671e034"`
[INFO] [stderr]    Compiling gossip_scribe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `GossipEvent`
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct GossipEvent {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Node`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Node {
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "0a1f08d6181111d1600a14980eaccc8392e11635d0a80b355a29fb41c671e034"`
[INFO] running `"docker" "rm" "-f" "0a1f08d6181111d1600a14980eaccc8392e11635d0a80b355a29fb41c671e034"`
[INFO] [stdout] 0a1f08d6181111d1600a14980eaccc8392e11635d0a80b355a29fb41c671e034
[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/pierrechevalier83/gossip_scribe:/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] a665004f291b7a85eb56b2b5f9bf38d9477ea48fdc130a410e76bd7de0e4d4a7
[INFO] running `"docker" "start" "-a" "a665004f291b7a85eb56b2b5f9bf38d9477ea48fdc130a410e76bd7de0e4d4a7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gossip_scribe-02eb3192366eb820
[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" "a665004f291b7a85eb56b2b5f9bf38d9477ea48fdc130a410e76bd7de0e4d4a7"`
[INFO] running `"docker" "rm" "-f" "a665004f291b7a85eb56b2b5f9bf38d9477ea48fdc130a410e76bd7de0e4d4a7"`
[INFO] [stdout] a665004f291b7a85eb56b2b5f9bf38d9477ea48fdc130a410e76bd7de0e4d4a7