[INFO] cloning repository https://github.com/fasterthanlime/msgpack-play
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fasterthanlime/msgpack-play" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffasterthanlime%2Fmsgpack-play", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffasterthanlime%2Fmsgpack-play'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 322bec02552b087e9db900ba96c2a79362ef1bc1
[INFO] checking fasterthanlime/msgpack-play against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffasterthanlime%2Fmsgpack-play" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fasterthanlime/msgpack-play on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fasterthanlime/msgpack-play
[INFO] finished tweaking git repo https://github.com/fasterthanlime/msgpack-play
[INFO] tweaked toml for git repo https://github.com/fasterthanlime/msgpack-play written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/fasterthanlime/msgpack-play already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp v0.8.7
[INFO] [stderr]   Downloaded seahash v3.0.6
[INFO] [stderr]   Downloaded xoroshiro128 v0.3.0
[INFO] [stderr]   Downloaded fasthash v0.4.0
[INFO] [stderr]   Downloaded serde_bytes v0.11.1
[INFO] [stderr]   Downloaded fasthash-sys v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c19b56feb682319a1c5176db0787a81d0b27b3b05bfe9d585da29ca34a9190d
[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" "4c19b56feb682319a1c5176db0787a81d0b27b3b05bfe9d585da29ca34a9190d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c19b56feb682319a1c5176db0787a81d0b27b3b05bfe9d585da29ca34a9190d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c19b56feb682319a1c5176db0787a81d0b27b3b05bfe9d585da29ca34a9190d", kill_on_drop: false }`
[INFO] [stdout] 4c19b56feb682319a1c5176db0787a81d0b27b3b05bfe9d585da29ca34a9190d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9105d0b95c37278a39bf67624df2dceadbdf8fce1dcdb705079ee4834d26d29e
[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" "9105d0b95c37278a39bf67624df2dceadbdf8fce1dcdb705079ee4834d26d29e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]     Checking seahash v3.0.6
[INFO] [stderr]    Compiling fasthash-sys v0.3.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking xoroshiro128 v0.3.0
[INFO] [stderr]     Checking rmp v0.8.7
[INFO] [stderr]     Checking fasthash v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]     Checking serde-transcode v1.1.0
[INFO] [stderr]     Checking serde_bytes v0.11.1
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking msgpack-play v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.94s
[INFO] running `Command { std: "docker" "inspect" "9105d0b95c37278a39bf67624df2dceadbdf8fce1dcdb705079ee4834d26d29e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9105d0b95c37278a39bf67624df2dceadbdf8fce1dcdb705079ee4834d26d29e", kill_on_drop: false }`
[INFO] [stdout] 9105d0b95c37278a39bf67624df2dceadbdf8fce1dcdb705079ee4834d26d29e