[INFO] cloning repository https://github.com/cstorey/mio-rules-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cstorey/mio-rules-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstorey%2Fmio-rules-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstorey%2Fmio-rules-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ceedffc2370de15cc6e7b73d44d8999b98c0ee0
[INFO] checking cstorey/mio-rules-example against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstorey%2Fmio-rules-example" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cstorey/mio-rules-example on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cstorey/mio-rules-example
[INFO] finished tweaking git repo https://github.com/cstorey/mio-rules-example
[INFO] tweaked toml for git repo https://github.com/cstorey/mio-rules-example written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/cstorey/mio-rules-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3554c2990ed258443860c5bffba0853272b6b6c19a5069d15c5362a106d5405e
[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" "3554c2990ed258443860c5bffba0853272b6b6c19a5069d15c5362a106d5405e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3554c2990ed258443860c5bffba0853272b6b6c19a5069d15c5362a106d5405e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3554c2990ed258443860c5bffba0853272b6b6c19a5069d15c5362a106d5405e", kill_on_drop: false }`
[INFO] [stdout] 3554c2990ed258443860c5bffba0853272b6b6c19a5069d15c5362a106d5405e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0564bdd82c8429a842d74529d00c45a0f2f416765396f55ef159f55c54c6ca29
[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" "0564bdd82c8429a842d74529d00c45a0f2f416765396f55ef159f55c54c6ca29", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling log v0.4.10
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking michat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.53s
[INFO] running `Command { std: "docker" "inspect" "0564bdd82c8429a842d74529d00c45a0f2f416765396f55ef159f55c54c6ca29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0564bdd82c8429a842d74529d00c45a0f2f416765396f55ef159f55c54c6ca29", kill_on_drop: false }`
[INFO] [stdout] 0564bdd82c8429a842d74529d00c45a0f2f416765396f55ef159f55c54c6ca29