[INFO] updating cached repository asib/echo-server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asib/echo-server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asib/echo-server" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/asib/echo-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/asib/echo-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asib/echo-server" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/asib/echo-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/asib/echo-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 84f9200c5724b2cf0f0076026d6ef94d314a491e
[INFO] sha for GitHub repo asib/echo-server: 84f9200c5724b2cf0f0076026d6ef94d314a491e
[INFO] validating manifest of asib/echo-server on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of asib/echo-server on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing asib/echo-server
[INFO] finished frobbing asib/echo-server
[INFO] frobbed toml for asib/echo-server written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/asib/echo-server/Cargo.toml
[INFO] started frobbing asib/echo-server
[INFO] finished frobbing asib/echo-server
[INFO] frobbed toml for asib/echo-server written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/asib/echo-server/Cargo.toml
[INFO] crate asib/echo-server has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing asib/echo-server against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/asib/echo-server:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 31dfaea7f6d34053d52b8fd349d20119b59d24cce0334daf980ce79984b83dfd
[INFO] running `"docker" "start" "-a" "31dfaea7f6d34053d52b8fd349d20119b59d24cce0334daf980ce79984b83dfd"`
[INFO] [stderr]    Compiling tokio-reactor v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-signal v0.2.5
[INFO] [stderr]    Compiling trust-dns-proto v0.4.3
[INFO] [stderr]    Compiling trust-dns-proto v0.5.0-alpha.3
[INFO] [stderr]    Compiling tokio v0.1.11
[INFO] [stderr]    Compiling trust-dns-resolver v0.9.1
[INFO] [stderr]    Compiling trust-dns-resolver v0.10.0-alpha.3
[INFO] [stderr]    Compiling actix v0.7.5
[INFO] [stderr]    Compiling actix-net v0.1.1
[INFO] [stderr]    Compiling actix-web v0.7.13
[INFO] [stderr]    Compiling echo-server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: symbol `_RINhNyCsfOXHOjakNhA_4core3mem7size_ofINcNsB4_6option6OptionINeNuCs417k6OcuDBw_9actix_web4json4JsonNdNtCsdWA2VxJbJoY_10serde_json5value5ValueEEECs2a6MG6bwjxB_11echo_server` is already defined
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `echo-server`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "31dfaea7f6d34053d52b8fd349d20119b59d24cce0334daf980ce79984b83dfd"`
[INFO] running `"docker" "rm" "-f" "31dfaea7f6d34053d52b8fd349d20119b59d24cce0334daf980ce79984b83dfd"`
[INFO] [stdout] 31dfaea7f6d34053d52b8fd349d20119b59d24cce0334daf980ce79984b83dfd