[INFO] updating cached repository zenria/rust-http-server-prometheus
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/zenria/rust-http-server-prometheus
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/zenria/rust-http-server-prometheus" "work/ex/beta-1.38-1/sources/1.37.0/gh/zenria/rust-http-server-prometheus"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/zenria/rust-http-server-prometheus'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/zenria/rust-http-server-prometheus" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zenria/rust-http-server-prometheus"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zenria/rust-http-server-prometheus'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2ae6affd9def2358982c0d0dfba0c3e6dc94a806
[INFO] sha for GitHub repo zenria/rust-http-server-prometheus: 2ae6affd9def2358982c0d0dfba0c3e6dc94a806
[INFO] validating manifest of zenria/rust-http-server-prometheus 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 zenria/rust-http-server-prometheus 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 zenria/rust-http-server-prometheus
[INFO] finished frobbing zenria/rust-http-server-prometheus
[INFO] frobbed toml for zenria/rust-http-server-prometheus written to work/ex/beta-1.38-1/sources/1.37.0/gh/zenria/rust-http-server-prometheus/Cargo.toml
[INFO] started frobbing zenria/rust-http-server-prometheus
[INFO] finished frobbing zenria/rust-http-server-prometheus
[INFO] frobbed toml for zenria/rust-http-server-prometheus written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/zenria/rust-http-server-prometheus/Cargo.toml
[INFO] crate zenria/rust-http-server-prometheus 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 zenria/rust-http-server-prometheus 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-3/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/zenria/rust-http-server-prometheus:/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] 09f254bb151ea2cfe60e2965cf1c0398c19e00277fb3a9c1b56d1350203820fa
[INFO] running `"docker" "start" "-a" "09f254bb151ea2cfe60e2965cf1c0398c19e00277fb3a9c1b56d1350203820fa"`
[INFO] [stderr]    Compiling futures v0.1.24
[INFO] [stderr]    Compiling protobuf v2.0.5
[INFO] [stderr]    Compiling prometheus v0.4.2
[INFO] [stderr]    Compiling quick-error v0.2.2
[INFO] [stderr]    Compiling spin v0.4.9
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling http v0.1.13
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-executor v0.1.5
[INFO] [stderr]    Compiling tokio-io v0.1.9
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling tokio-threadpool v0.1.7
[INFO] [stderr]    Compiling tokio-current-thread v0.1.3
[INFO] [stderr]    Compiling tokio-timer v0.2.7
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.6
[INFO] [stderr]    Compiling h2 v0.1.12
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.2
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio v0.1.11
[INFO] [stderr]    Compiling hyper v0.12.11
[INFO] [stderr]    Compiling prometheus-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `"docker" "inspect" "09f254bb151ea2cfe60e2965cf1c0398c19e00277fb3a9c1b56d1350203820fa"`
[INFO] running `"docker" "rm" "-f" "09f254bb151ea2cfe60e2965cf1c0398c19e00277fb3a9c1b56d1350203820fa"`
[INFO] [stdout] 09f254bb151ea2cfe60e2965cf1c0398c19e00277fb3a9c1b56d1350203820fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/zenria/rust-http-server-prometheus:/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] d1b8d7b392c8f1660fbb0001f29d68c10ff9582cbc9e823001ef97c45c37e2bb
[INFO] running `"docker" "start" "-a" "d1b8d7b392c8f1660fbb0001f29d68c10ff9582cbc9e823001ef97c45c37e2bb"`
[INFO] [stderr]    Compiling prometheus-test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "d1b8d7b392c8f1660fbb0001f29d68c10ff9582cbc9e823001ef97c45c37e2bb"`
[INFO] running `"docker" "rm" "-f" "d1b8d7b392c8f1660fbb0001f29d68c10ff9582cbc9e823001ef97c45c37e2bb"`
[INFO] [stdout] d1b8d7b392c8f1660fbb0001f29d68c10ff9582cbc9e823001ef97c45c37e2bb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/zenria/rust-http-server-prometheus:/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] d2c3cb3b0219e68b475e5af49d0869b039ce520e12889c884228d4378399e88e
[INFO] running `"docker" "start" "-a" "d2c3cb3b0219e68b475e5af49d0869b039ce520e12889c884228d4378399e88e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prometheus_test-b335665832278ad7
[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" "d2c3cb3b0219e68b475e5af49d0869b039ce520e12889c884228d4378399e88e"`
[INFO] running `"docker" "rm" "-f" "d2c3cb3b0219e68b475e5af49d0869b039ce520e12889c884228d4378399e88e"`
[INFO] [stdout] d2c3cb3b0219e68b475e5af49d0869b039ce520e12889c884228d4378399e88e