[INFO] fetching crate mio-serial 3.3.1...
[INFO] checking mio-serial-3.3.1 against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] extracting crate mio-serial 3.3.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate mio-serial 3.3.1 on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mio-serial 3.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mio-serial 3.3.1
[INFO] tweaked toml for crates.io crate mio-serial 3.3.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate mio-serial 3.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serialport v3.3.0
[INFO] [stderr]   Downloaded mio v0.6.21
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded memchr v2.3.3
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded nix v0.14.1
[INFO] [stderr]   Downloaded regex v1.3.5
[INFO] [stderr]   Downloaded thread_local v1.0.1
[INFO] [stderr]   Downloaded socket2 v0.3.11
[INFO] [stderr]   Downloaded miow v0.3.3
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.6
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded cc v1.0.50
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded mach v0.2.3
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 780b47e1e770e6877740c0fc8f0b820cb249bf988cb7d4998e22120c5bf8126b
[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" "780b47e1e770e6877740c0fc8f0b820cb249bf988cb7d4998e22120c5bf8126b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "780b47e1e770e6877740c0fc8f0b820cb249bf988cb7d4998e22120c5bf8126b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "780b47e1e770e6877740c0fc8f0b820cb249bf988cb7d4998e22120c5bf8126b", kill_on_drop: false }`
[INFO] [stdout] 780b47e1e770e6877740c0fc8f0b820cb249bf988cb7d4998e22120c5bf8126b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f59bf61a85ec3ab5c7a70b71e97808c8dcf175e8414d6ad5dad0997e19b4a22e
[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" "f59bf61a85ec3ab5c7a70b71e97808c8dcf175e8414d6ad5dad0997e19b4a22e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]     Checking mio-serial v3.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.75s
[INFO] running `Command { std: "docker" "inspect" "f59bf61a85ec3ab5c7a70b71e97808c8dcf175e8414d6ad5dad0997e19b4a22e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f59bf61a85ec3ab5c7a70b71e97808c8dcf175e8414d6ad5dad0997e19b4a22e", kill_on_drop: false }`
[INFO] [stdout] f59bf61a85ec3ab5c7a70b71e97808c8dcf175e8414d6ad5dad0997e19b4a22e