[INFO] fetching crate twitter-bot 0.2.0...
[INFO] checking twitter-bot-0.2.0 against beta for pr-78714
[INFO] extracting crate twitter-bot 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate twitter-bot 0.2.0 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 crates.io crate twitter-bot 0.2.0
[INFO] finished tweaking crates.io crate twitter-bot 0.2.0
[INFO] tweaked toml for crates.io crate twitter-bot 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate twitter-bot 0.2.0 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] [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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] fae2477a142bb163a61cf31804a777906449470b99d0dae10a12ac1f4fbda534
[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" "fae2477a142bb163a61cf31804a777906449470b99d0dae10a12ac1f4fbda534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fae2477a142bb163a61cf31804a777906449470b99d0dae10a12ac1f4fbda534", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae2477a142bb163a61cf31804a777906449470b99d0dae10a12ac1f4fbda534", kill_on_drop: false }`
[INFO] [stdout] fae2477a142bb163a61cf31804a777906449470b99d0dae10a12ac1f4fbda534
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] f20eaec0e10c21fa8b050f6a3ec583cf81f3685b3f2bc14a26e2b1088269e6c6
[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" "f20eaec0e10c21fa8b050f6a3ec583cf81f3685b3f2bc14a26e2b1088269e6c6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling encoding_rs v0.8.25
[INFO] [stderr]     Checking ring v0.16.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking ct-logs v0.6.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking rss v1.9.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking tokio-rustls v0.13.1
[INFO] [stderr]     Checking rustls-native-certs v0.3.0
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking hyper-rustls v0.20.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking egg-mode v0.15.0
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking twitter-bot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.26s
[INFO] running `Command { std: "docker" "inspect" "f20eaec0e10c21fa8b050f6a3ec583cf81f3685b3f2bc14a26e2b1088269e6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20eaec0e10c21fa8b050f6a3ec583cf81f3685b3f2bc14a26e2b1088269e6c6", kill_on_drop: false }`
[INFO] [stdout] f20eaec0e10c21fa8b050f6a3ec583cf81f3685b3f2bc14a26e2b1088269e6c6