[INFO] fetching crate netxserver 1.0.0...
[INFO] checking netxserver-1.0.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate netxserver 1.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate netxserver 1.0.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netxserver 1.0.0
[INFO] finished tweaking crates.io crate netxserver 1.0.0
[INFO] tweaked toml for crates.io crate netxserver 1.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate netxserver 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c25a56e70c52f609b945e28c70757ffc935fc568b2266c323a81adb2c5cf8b15
[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" "c25a56e70c52f609b945e28c70757ffc935fc568b2266c323a81adb2c5cf8b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c25a56e70c52f609b945e28c70757ffc935fc568b2266c323a81adb2c5cf8b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c25a56e70c52f609b945e28c70757ffc935fc568b2266c323a81adb2c5cf8b15", kill_on_drop: false }`
[INFO] [stdout] c25a56e70c52f609b945e28c70757ffc935fc568b2266c323a81adb2c5cf8b15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f42b10da66cc04e269e2b857d4a19af2da615153bbb6b85ad795cf4ae776751
[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" "5f42b10da66cc04e269e2b857d4a19af2da615153bbb6b85ad795cf4ae776751", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking futures-micro v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]     Checking futures-micro v0.5.0
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.21
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-oneshot v0.5.0
[INFO] [stderr]     Checking async-oneshot v0.4.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mimalloc v0.1.25
[INFO] [stderr]    Compiling proc_macro_roids v0.7.0
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling netxbuilder v1.0.0
[INFO] [stderr]     Checking tokio v1.5.0
[INFO] [stderr]     Checking aqueue v1.0.3
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking rmp-serde v0.15.4
[INFO] [stderr]     Checking data-rw v0.2.4
[INFO] [stderr]     Checking data-rw v1.0.0
[INFO] [stderr]     Checking tcpserver v1.0.0
[INFO] [stderr]     Checking netxserver v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "5f42b10da66cc04e269e2b857d4a19af2da615153bbb6b85ad795cf4ae776751", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f42b10da66cc04e269e2b857d4a19af2da615153bbb6b85ad795cf4ae776751", kill_on_drop: false }`
[INFO] [stdout] 5f42b10da66cc04e269e2b857d4a19af2da615153bbb6b85ad795cf4ae776751