[INFO] updating cached repository dbrgn/echo-server-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dbrgn/echo-server-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dbrgn/echo-server-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/dbrgn/echo-server-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/dbrgn/echo-server-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dbrgn/echo-server-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dbrgn/echo-server-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dbrgn/echo-server-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ba5bbd1aab509339285efb6443e9727960d9b112
[INFO] sha for GitHub repo dbrgn/echo-server-rs: ba5bbd1aab509339285efb6443e9727960d9b112
[INFO] validating manifest of dbrgn/echo-server-rs 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 dbrgn/echo-server-rs 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 dbrgn/echo-server-rs
[INFO] finished frobbing dbrgn/echo-server-rs
[INFO] frobbed toml for dbrgn/echo-server-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/dbrgn/echo-server-rs/Cargo.toml
[INFO] started frobbing dbrgn/echo-server-rs
[INFO] finished frobbing dbrgn/echo-server-rs
[INFO] frobbed toml for dbrgn/echo-server-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/dbrgn/echo-server-rs/Cargo.toml
[INFO] crate dbrgn/echo-server-rs 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dbrgn/echo-server-rs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing dbrgn/echo-server-rs 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dbrgn/echo-server-rs:/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] 7090ccc753e7ec02771497a5569b8ffc72685b68c938762ad22f040e8f09aadd
[INFO] running `"docker" "start" "-a" "7090ccc753e7ec02771497a5569b8ffc72685b68c938762ad22f040e8f09aadd"`
[INFO] [stderr]    Compiling echo-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "7090ccc753e7ec02771497a5569b8ffc72685b68c938762ad22f040e8f09aadd"`
[INFO] running `"docker" "rm" "-f" "7090ccc753e7ec02771497a5569b8ffc72685b68c938762ad22f040e8f09aadd"`
[INFO] [stdout] 7090ccc753e7ec02771497a5569b8ffc72685b68c938762ad22f040e8f09aadd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dbrgn/echo-server-rs:/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] 8c9422b7cb52296f52d7bb13c2f3dd65b249141a78dee5d130c7f8daa7376552
[INFO] running `"docker" "start" "-a" "8c9422b7cb52296f52d7bb13c2f3dd65b249141a78dee5d130c7f8daa7376552"`
[INFO] [stderr]    Compiling echo-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "8c9422b7cb52296f52d7bb13c2f3dd65b249141a78dee5d130c7f8daa7376552"`
[INFO] running `"docker" "rm" "-f" "8c9422b7cb52296f52d7bb13c2f3dd65b249141a78dee5d130c7f8daa7376552"`
[INFO] [stdout] 8c9422b7cb52296f52d7bb13c2f3dd65b249141a78dee5d130c7f8daa7376552
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/dbrgn/echo-server-rs:/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] 9ae42412e29b0bd4ee619d33e14fc93666b2b8ae70389a6c08e1e1c4a37407c3
[INFO] running `"docker" "start" "-a" "9ae42412e29b0bd4ee619d33e14fc93666b2b8ae70389a6c08e1e1c4a37407c3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/echo_server-5cf130b712fba50e
[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" "9ae42412e29b0bd4ee619d33e14fc93666b2b8ae70389a6c08e1e1c4a37407c3"`
[INFO] running `"docker" "rm" "-f" "9ae42412e29b0bd4ee619d33e14fc93666b2b8ae70389a6c08e1e1c4a37407c3"`
[INFO] [stdout] 9ae42412e29b0bd4ee619d33e14fc93666b2b8ae70389a6c08e1e1c4a37407c3