[INFO] updating cached repository garyemerson/metrics_update
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/garyemerson/metrics_update
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/garyemerson/metrics_update" "work/ex/beta-1.37-6/sources/1.36.0/gh/garyemerson/metrics_update"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/garyemerson/metrics_update'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/garyemerson/metrics_update" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/garyemerson/metrics_update"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/garyemerson/metrics_update'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64e7496b098c8454969c44374412d35255070b18
[INFO] sha for GitHub repo garyemerson/metrics_update: 64e7496b098c8454969c44374412d35255070b18
[INFO] validating manifest of garyemerson/metrics_update 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 garyemerson/metrics_update 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 garyemerson/metrics_update
[INFO] finished frobbing garyemerson/metrics_update
[INFO] frobbed toml for garyemerson/metrics_update written to work/ex/beta-1.37-6/sources/1.36.0/gh/garyemerson/metrics_update/Cargo.toml
[INFO] started frobbing garyemerson/metrics_update
[INFO] finished frobbing garyemerson/metrics_update
[INFO] frobbed toml for garyemerson/metrics_update written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/garyemerson/metrics_update/Cargo.toml
[INFO] crate garyemerson/metrics_update 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 garyemerson/metrics_update 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/garyemerson/metrics_update:/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] 3fad2baf151e637c965ee7427911b29f81a53e861f8ea006c4669b19ae066eac
[INFO] running `"docker" "start" "-a" "3fad2baf151e637c965ee7427911b29f81a53e861f8ea006c4669b19ae066eac"`
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]    Compiling nodrop v0.1.10
[INFO] [stderr]    Compiling iovec v0.1.1
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling bytes v0.4.5
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling generic-array v0.8.3
[INFO] [stderr]    Compiling digest v0.6.2
[INFO] [stderr]    Compiling block-buffer v0.2.0
[INFO] [stderr]    Compiling crypto-mac v0.4.0
[INFO] [stderr]    Compiling hmac v0.4.2
[INFO] [stderr]    Compiling sha2 v0.6.0
[INFO] [stderr]    Compiling postgres-protocol v0.3.1
[INFO] [stderr]    Compiling postgres-shared v0.4.0
[INFO] [stderr]    Compiling postgres v0.15.1
[INFO] [stderr]    Compiling metrics_update v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Metric`
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct Metric {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.72s
[INFO] running `"docker" "inspect" "3fad2baf151e637c965ee7427911b29f81a53e861f8ea006c4669b19ae066eac"`
[INFO] running `"docker" "rm" "-f" "3fad2baf151e637c965ee7427911b29f81a53e861f8ea006c4669b19ae066eac"`
[INFO] [stdout] 3fad2baf151e637c965ee7427911b29f81a53e861f8ea006c4669b19ae066eac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/garyemerson/metrics_update:/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] 7942630114f7841e6c8e01af148b19cbb5f822ccfbe8d73eca42b9be778e06ec
[INFO] running `"docker" "start" "-a" "7942630114f7841e6c8e01af148b19cbb5f822ccfbe8d73eca42b9be778e06ec"`
[INFO] [stderr]    Compiling metrics_update v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Metric`
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct Metric {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "7942630114f7841e6c8e01af148b19cbb5f822ccfbe8d73eca42b9be778e06ec"`
[INFO] running `"docker" "rm" "-f" "7942630114f7841e6c8e01af148b19cbb5f822ccfbe8d73eca42b9be778e06ec"`
[INFO] [stdout] 7942630114f7841e6c8e01af148b19cbb5f822ccfbe8d73eca42b9be778e06ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/garyemerson/metrics_update:/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] c46285f083cd5a1124565eca839f2b34681225d649de02e47d11bdfa3ab32c8c
[INFO] running `"docker" "start" "-a" "c46285f083cd5a1124565eca839f2b34681225d649de02e47d11bdfa3ab32c8c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/metrics_update-e324631baa8b42ab
[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" "c46285f083cd5a1124565eca839f2b34681225d649de02e47d11bdfa3ab32c8c"`
[INFO] running `"docker" "rm" "-f" "c46285f083cd5a1124565eca839f2b34681225d649de02e47d11bdfa3ab32c8c"`
[INFO] [stdout] c46285f083cd5a1124565eca839f2b34681225d649de02e47d11bdfa3ab32c8c