[INFO] cloning repository https://github.com/el-komandante/mailgun-server-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/el-komandante/mailgun-server-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fel-komandante%2Fmailgun-server-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fel-komandante%2Fmailgun-server-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 085fbd56d7a1f0f5c114703fb5ffae7e17c3a2b0
[INFO] checking el-komandante/mailgun-server-rust against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fel-komandante%2Fmailgun-server-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/el-komandante/mailgun-server-rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/el-komandante/mailgun-server-rust
[INFO] finished tweaking git repo https://github.com/el-komandante/mailgun-server-rust
[INFO] tweaked toml for git repo https://github.com/el-komandante/mailgun-server-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/el-komandante/mailgun-server-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d45ed8a45ddcf06aa77f5e2a9611e42cfd5184da8f69bd8a8b16fd7c98d426b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7d45ed8a45ddcf06aa77f5e2a9611e42cfd5184da8f69bd8a8b16fd7c98d426b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d45ed8a45ddcf06aa77f5e2a9611e42cfd5184da8f69bd8a8b16fd7c98d426b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d45ed8a45ddcf06aa77f5e2a9611e42cfd5184da8f69bd8a8b16fd7c98d426b", kill_on_drop: false }`
[INFO] [stdout] 7d45ed8a45ddcf06aa77f5e2a9611e42cfd5184da8f69bd8a8b16fd7c98d426b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] daf770f6f2f3ec6b552c53d9ea294acbee7051be3c8ed6efcbf519c99abb9ca9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "daf770f6f2f3ec6b552c53d9ea294acbee7051be3c8ed6efcbf519c99abb9ca9", kill_on_drop: false }`
[INFO] [stderr] error: multiple packages link to native library `openssl`, but a native library can be linked only once
[INFO] [stderr] 
[INFO] [stderr] package `openssl-sys v0.7.17`
[INFO] [stderr]     ... which is depended on by `openssl v0.7.14`
[INFO] [stderr]     ... which is depended on by `cookie v0.2.5`
[INFO] [stderr]     ... which is depended on by `hyper v0.7.2`
[INFO] [stderr]     ... which is depended on by `mailgun-server v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] links to native library `openssl`
[INFO] [stderr] 
[INFO] [stderr] package `openssl-sys v0.9.6`
[INFO] [stderr]     ... which is depended on by `openssl v0.9.6`
[INFO] [stderr]     ... which is depended on by `native-tls v0.1.1`
[INFO] [stderr]     ... which is depended on by `reqwest v0.3.0`
[INFO] [stderr]     ... which is depended on by `mailgun-server v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] also links to native library `openssl`
[INFO] running `Command { std: "docker" "inspect" "daf770f6f2f3ec6b552c53d9ea294acbee7051be3c8ed6efcbf519c99abb9ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daf770f6f2f3ec6b552c53d9ea294acbee7051be3c8ed6efcbf519c99abb9ca9", kill_on_drop: false }`
[INFO] [stdout] daf770f6f2f3ec6b552c53d9ea294acbee7051be3c8ed6efcbf519c99abb9ca9
