[INFO] updating cached repository alex34567/synacor-challenge
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/alex34567/synacor-challenge
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/alex34567/synacor-challenge" "work/ex/beta-1.38-1/sources/1.37.0/gh/alex34567/synacor-challenge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/alex34567/synacor-challenge'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alex34567/synacor-challenge" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alex34567/synacor-challenge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alex34567/synacor-challenge'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5a0f64456a63c24c78c9f83a4e763f0d17dd9082
[INFO] sha for GitHub repo alex34567/synacor-challenge: 5a0f64456a63c24c78c9f83a4e763f0d17dd9082
[INFO] validating manifest of alex34567/synacor-challenge 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 alex34567/synacor-challenge 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 alex34567/synacor-challenge
[INFO] finished frobbing alex34567/synacor-challenge
[INFO] frobbed toml for alex34567/synacor-challenge written to work/ex/beta-1.38-1/sources/1.37.0/gh/alex34567/synacor-challenge/Cargo.toml
[INFO] started frobbing alex34567/synacor-challenge
[INFO] finished frobbing alex34567/synacor-challenge
[INFO] frobbed toml for alex34567/synacor-challenge written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/alex34567/synacor-challenge/Cargo.toml
[INFO] crate alex34567/synacor-challenge 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 alex34567/synacor-challenge against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alex34567/synacor-challenge:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 80c22930cc41f3693dc3963ae967f80485c75e6b8d24d9ffb743542663b64409
[INFO] running `"docker" "start" "-a" "80c22930cc41f3693dc3963ae967f80485c75e6b8d24d9ffb743542663b64409"`
[INFO] [stderr]    Compiling synacor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "80c22930cc41f3693dc3963ae967f80485c75e6b8d24d9ffb743542663b64409"`
[INFO] running `"docker" "rm" "-f" "80c22930cc41f3693dc3963ae967f80485c75e6b8d24d9ffb743542663b64409"`
[INFO] [stdout] 80c22930cc41f3693dc3963ae967f80485c75e6b8d24d9ffb743542663b64409
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alex34567/synacor-challenge:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b5c2394329b7d8663361c74afbee81e1c26e5d04b528d1bae2eb4898179f1afc
[INFO] running `"docker" "start" "-a" "b5c2394329b7d8663361c74afbee81e1c26e5d04b528d1bae2eb4898179f1afc"`
[INFO] [stderr]    Compiling synacor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "b5c2394329b7d8663361c74afbee81e1c26e5d04b528d1bae2eb4898179f1afc"`
[INFO] running `"docker" "rm" "-f" "b5c2394329b7d8663361c74afbee81e1c26e5d04b528d1bae2eb4898179f1afc"`
[INFO] [stdout] b5c2394329b7d8663361c74afbee81e1c26e5d04b528d1bae2eb4898179f1afc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/alex34567/synacor-challenge:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] ad1ff480361621f4d23468fe7aa20ee02e004b3ea3b56cd007184bdde84bb6d2
[INFO] running `"docker" "start" "-a" "ad1ff480361621f4d23468fe7aa20ee02e004b3ea3b56cd007184bdde84bb6d2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/synacor-baafe46b472888dd
[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" "ad1ff480361621f4d23468fe7aa20ee02e004b3ea3b56cd007184bdde84bb6d2"`
[INFO] running `"docker" "rm" "-f" "ad1ff480361621f4d23468fe7aa20ee02e004b3ea3b56cd007184bdde84bb6d2"`
[INFO] [stdout] ad1ff480361621f4d23468fe7aa20ee02e004b3ea3b56cd007184bdde84bb6d2