[INFO] updating cached repository WiSaGaN/muc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/WiSaGaN/muc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/WiSaGaN/muc" "work/ex/beta-1.38-1/sources/1.37.0/gh/WiSaGaN/muc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/WiSaGaN/muc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/WiSaGaN/muc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WiSaGaN/muc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WiSaGaN/muc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a5085ea63febb16fc4325a2206c625f10019e662
[INFO] sha for GitHub repo WiSaGaN/muc: a5085ea63febb16fc4325a2206c625f10019e662
[INFO] validating manifest of WiSaGaN/muc 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 WiSaGaN/muc 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 WiSaGaN/muc
[INFO] finished frobbing WiSaGaN/muc
[INFO] frobbed toml for WiSaGaN/muc written to work/ex/beta-1.38-1/sources/1.37.0/gh/WiSaGaN/muc/Cargo.toml
[INFO] started frobbing WiSaGaN/muc
[INFO] finished frobbing WiSaGaN/muc
[INFO] frobbed toml for WiSaGaN/muc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/WiSaGaN/muc/Cargo.toml
[INFO] crate WiSaGaN/muc 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 WiSaGaN/muc 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/WiSaGaN/muc:/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] ab09b551545d8678fc30bc8c3542d319227a46668c0dc5c0129a78d39bc2fe2c
[INFO] running `"docker" "start" "-a" "ab09b551545d8678fc30bc8c3542d319227a46668c0dc5c0129a78d39bc2fe2c"`
[INFO] [stderr]    Compiling libc v0.2.31
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling muc v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.08s
[INFO] running `"docker" "inspect" "ab09b551545d8678fc30bc8c3542d319227a46668c0dc5c0129a78d39bc2fe2c"`
[INFO] running `"docker" "rm" "-f" "ab09b551545d8678fc30bc8c3542d319227a46668c0dc5c0129a78d39bc2fe2c"`
[INFO] [stdout] ab09b551545d8678fc30bc8c3542d319227a46668c0dc5c0129a78d39bc2fe2c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/WiSaGaN/muc:/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] 60f901e0c2e55b686353728c61df503f3c39ef2dcee54f954b98ee8a450a6b40
[INFO] running `"docker" "start" "-a" "60f901e0c2e55b686353728c61df503f3c39ef2dcee54f954b98ee8a450a6b40"`
[INFO] [stderr]    Compiling muc v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "60f901e0c2e55b686353728c61df503f3c39ef2dcee54f954b98ee8a450a6b40"`
[INFO] running `"docker" "rm" "-f" "60f901e0c2e55b686353728c61df503f3c39ef2dcee54f954b98ee8a450a6b40"`
[INFO] [stdout] 60f901e0c2e55b686353728c61df503f3c39ef2dcee54f954b98ee8a450a6b40
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/WiSaGaN/muc:/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] 620b74e5ad6ad616ab30207a8c4a17a58816802b19b9de6a3cd93cc6b17645a5
[INFO] running `"docker" "start" "-a" "620b74e5ad6ad616ab30207a8c4a17a58816802b19b9de6a3cd93cc6b17645a5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/muc-f0189dbb2cdc8254
[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" "620b74e5ad6ad616ab30207a8c4a17a58816802b19b9de6a3cd93cc6b17645a5"`
[INFO] running `"docker" "rm" "-f" "620b74e5ad6ad616ab30207a8c4a17a58816802b19b9de6a3cd93cc6b17645a5"`
[INFO] [stdout] 620b74e5ad6ad616ab30207a8c4a17a58816802b19b9de6a3cd93cc6b17645a5