[INFO] fetching crate arccstr 1.3.0...
[INFO] checking arccstr-1.3.0 against beta for pr-78714
[INFO] extracting crate arccstr 1.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate arccstr 1.3.0 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 arccstr 1.3.0
[INFO] finished tweaking crates.io crate arccstr 1.3.0
[INFO] tweaked toml for crates.io crate arccstr 1.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 227bdb63726c3df97962cd9437c1b90517c6cf86a0f71ce1fdc2d0ee6059d7cc
[INFO] running `Command { std: "docker" "start" "-a" "227bdb63726c3df97962cd9437c1b90517c6cf86a0f71ce1fdc2d0ee6059d7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "227bdb63726c3df97962cd9437c1b90517c6cf86a0f71ce1fdc2d0ee6059d7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227bdb63726c3df97962cd9437c1b90517c6cf86a0f71ce1fdc2d0ee6059d7cc", kill_on_drop: false }`
[INFO] [stdout] 227bdb63726c3df97962cd9437c1b90517c6cf86a0f71ce1fdc2d0ee6059d7cc
[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] ab520cb74fd6af6e993f2fa3222c00a218c419cf81f8b20437fc1360b7c4c5f1
[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" "ab520cb74fd6af6e993f2fa3222c00a218c419cf81f8b20437fc1360b7c4c5f1", kill_on_drop: false }`
[INFO] [stderr]     Checking serde_test v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking arccstr v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.86s
[INFO] running `Command { std: "docker" "inspect" "ab520cb74fd6af6e993f2fa3222c00a218c419cf81f8b20437fc1360b7c4c5f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab520cb74fd6af6e993f2fa3222c00a218c419cf81f8b20437fc1360b7c4c5f1", kill_on_drop: false }`
[INFO] [stdout] ab520cb74fd6af6e993f2fa3222c00a218c419cf81f8b20437fc1360b7c4c5f1