[INFO] cloning repository https://github.com/vs-123/rust-chatting-website
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vs-123/rust-chatting-website" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvs-123%2Frust-chatting-website", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvs-123%2Frust-chatting-website'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6024a0da43e5e5fc42b1ebb3e89376c889dd5fd4
[INFO] checking vs-123/rust-chatting-website against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvs-123%2Frust-chatting-website" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vs-123/rust-chatting-website on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vs-123/rust-chatting-website
[INFO] finished tweaking git repo https://github.com/vs-123/rust-chatting-website
[INFO] tweaked toml for git repo https://github.com/vs-123/rust-chatting-website written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/vs-123/rust-chatting-website already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ec973d0ebe8a67b6a34a8b5f0b8cd6c46ecb4dbf549350b241ab5dad89f6164
[INFO] running `Command { std: "docker" "start" "-a" "7ec973d0ebe8a67b6a34a8b5f0b8cd6c46ecb4dbf549350b241ab5dad89f6164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ec973d0ebe8a67b6a34a8b5f0b8cd6c46ecb4dbf549350b241ab5dad89f6164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ec973d0ebe8a67b6a34a8b5f0b8cd6c46ecb4dbf549350b241ab5dad89f6164", kill_on_drop: false }`
[INFO] [stdout] 7ec973d0ebe8a67b6a34a8b5f0b8cd6c46ecb4dbf549350b241ab5dad89f6164
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a79d36e022699dac8a34b62390b88b0c518f44a3570cc6417f2f8a20f497c1ab
[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" "a79d36e022699dac8a34b62390b88b0c518f44a3570cc6417f2f8a20f497c1ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking unicode-normalization v0.1.18
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking ws v0.9.1
[INFO] [stderr]     Checking rust-chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.26s
[INFO] running `Command { std: "docker" "inspect" "a79d36e022699dac8a34b62390b88b0c518f44a3570cc6417f2f8a20f497c1ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79d36e022699dac8a34b62390b88b0c518f44a3570cc6417f2f8a20f497c1ab", kill_on_drop: false }`
[INFO] [stdout] a79d36e022699dac8a34b62390b88b0c518f44a3570cc6417f2f8a20f497c1ab