[INFO] cloning repository https://github.com/0ncorhynchus/tweet.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0ncorhynchus/tweet.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0ncorhynchus%2Ftweet.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0ncorhynchus%2Ftweet.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a20eaa256b039757ae897564cb10a42ecf82e589
[INFO] checking 0ncorhynchus/tweet.rs against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0ncorhynchus%2Ftweet.rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0ncorhynchus/tweet.rs on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0ncorhynchus/tweet.rs
[INFO] finished tweaking git repo https://github.com/0ncorhynchus/tweet.rs
[INFO] tweaked toml for git repo https://github.com/0ncorhynchus/tweet.rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/0ncorhynchus/tweet.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fc4ffa0bcd9587bb480d87bc143169ae233bb69eea38d37ba7f44933dc53b0c
[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" "1fc4ffa0bcd9587bb480d87bc143169ae233bb69eea38d37ba7f44933dc53b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fc4ffa0bcd9587bb480d87bc143169ae233bb69eea38d37ba7f44933dc53b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc4ffa0bcd9587bb480d87bc143169ae233bb69eea38d37ba7f44933dc53b0c", kill_on_drop: false }`
[INFO] [stdout] 1fc4ffa0bcd9587bb480d87bc143169ae233bb69eea38d37ba7f44933dc53b0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 439ffa9cd3cf72e8835771b4e84ef6e3d874de622bbedde120e6d7f9650f3921
[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" "439ffa9cd3cf72e8835771b4e84ef6e3d874de622bbedde120e6d7f9650f3921", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]    Compiling openssl-src v111.6.1+1.1.1d
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]     Checking hmac-sha1 v0.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking h2 v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking hyper v0.13.2
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking envy v0.4.1
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking hyper-tls v0.4.1
[INFO] [stderr]     Checking reqwest v0.10.3
[INFO] [stderr]     Checking tweet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 12s
[INFO] running `Command { std: "docker" "inspect" "439ffa9cd3cf72e8835771b4e84ef6e3d874de622bbedde120e6d7f9650f3921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439ffa9cd3cf72e8835771b4e84ef6e3d874de622bbedde120e6d7f9650f3921", kill_on_drop: false }`
[INFO] [stdout] 439ffa9cd3cf72e8835771b4e84ef6e3d874de622bbedde120e6d7f9650f3921