[INFO] cloning repository https://github.com/ArthurCueio/tungstenite-server-client-sample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ArthurCueio/tungstenite-server-client-sample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArthurCueio%2Ftungstenite-server-client-sample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArthurCueio%2Ftungstenite-server-client-sample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f25def492cbeca62b7a35d294d6756520e8623a
[INFO] checking ArthurCueio/tungstenite-server-client-sample against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArthurCueio%2Ftungstenite-server-client-sample" "/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/ArthurCueio/tungstenite-server-client-sample 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 git repo https://github.com/ArthurCueio/tungstenite-server-client-sample
[INFO] finished tweaking git repo https://github.com/ArthurCueio/tungstenite-server-client-sample
[INFO] tweaked toml for git repo https://github.com/ArthurCueio/tungstenite-server-client-sample written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/ArthurCueio/tungstenite-server-client-sample 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] error: the lock file /workspace/builds/worker-13/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] 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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] f0be962d238c1be17a1a2e9892ea146c3e03cae0ba00f5013a285cc9699cf1f6
[INFO] running `Command { std: "docker" "start" "-a" "f0be962d238c1be17a1a2e9892ea146c3e03cae0ba00f5013a285cc9699cf1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0be962d238c1be17a1a2e9892ea146c3e03cae0ba00f5013a285cc9699cf1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0be962d238c1be17a1a2e9892ea146c3e03cae0ba00f5013a285cc9699cf1f6", kill_on_drop: false }`
[INFO] [stdout] f0be962d238c1be17a1a2e9892ea146c3e03cae0ba00f5013a285cc9699cf1f6
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 5ba238878cd89b6c25929cde2cb52fc67f1dd7957f56bb6ee1299814f61dfa12
[INFO] running `Command { std: "docker" "start" "-a" "5ba238878cd89b6c25929cde2cb52fc67f1dd7957f56bb6ee1299814f61dfa12", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking cpufeatures v0.1.1
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]     Checking sha-1 v0.9.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking tungstenite-server-client-sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.09s
[INFO] running `Command { std: "docker" "inspect" "5ba238878cd89b6c25929cde2cb52fc67f1dd7957f56bb6ee1299814f61dfa12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba238878cd89b6c25929cde2cb52fc67f1dd7957f56bb6ee1299814f61dfa12", kill_on_drop: false }`
[INFO] [stdout] 5ba238878cd89b6c25929cde2cb52fc67f1dd7957f56bb6ee1299814f61dfa12