[INFO] fetching crate tcpserver 0.3.10...
[INFO] checking tcpserver-0.3.10 against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] extracting crate tcpserver 0.3.10 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate tcpserver 0.3.10 on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tcpserver 0.3.10
[INFO] finished tweaking crates.io crate tcpserver 0.3.10
[INFO] tweaked toml for crates.io crate tcpserver 0.3.10 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-micro v0.3.1
[INFO] [stderr]   Downloaded aqueue_trait v0.1.0
[INFO] [stderr]   Downloaded data-rw v0.2.4
[INFO] [stderr]   Downloaded async-oneshot v0.4.2
[INFO] [stderr]   Downloaded aqueue v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e63561292a5af6a217b00c5c9b1536f98e3e40378383fb1728a5eadea10d4b8
[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" "8e63561292a5af6a217b00c5c9b1536f98e3e40378383fb1728a5eadea10d4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e63561292a5af6a217b00c5c9b1536f98e3e40378383fb1728a5eadea10d4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e63561292a5af6a217b00c5c9b1536f98e3e40378383fb1728a5eadea10d4b8", kill_on_drop: false }`
[INFO] [stdout] 8e63561292a5af6a217b00c5c9b1536f98e3e40378383fb1728a5eadea10d4b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abf4c99a58b390c34f90e3ebfd38db8f3332c0ce2720adf04fd629c3c18ddcd7
[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" "abf4c99a58b390c34f90e3ebfd38db8f3332c0ce2720adf04fd629c3c18ddcd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking futures-micro v0.3.1
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]     Checking memchr v2.3.4
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-oneshot v0.4.2
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking data-rw v0.2.4
[INFO] [stderr]    Compiling aqueue_trait v0.1.0
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]     Checking aqueue v0.3.4
[INFO] [stderr]     Checking tcpserver v0.3.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.35s
[INFO] running `Command { std: "docker" "inspect" "abf4c99a58b390c34f90e3ebfd38db8f3332c0ce2720adf04fd629c3c18ddcd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf4c99a58b390c34f90e3ebfd38db8f3332c0ce2720adf04fd629c3c18ddcd7", kill_on_drop: false }`
[INFO] [stdout] abf4c99a58b390c34f90e3ebfd38db8f3332c0ce2720adf04fd629c3c18ddcd7