[INFO] cloning repository https://github.com/pop-os/popsicle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pop-os/popsicle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fpopsicle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fpopsicle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9d93328f76923df7b0b06e793001dbd573c11a2
[INFO] checking pop-os/popsicle against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fpopsicle" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pop-os/popsicle 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/pop-os/popsicle
[INFO] removed workspace from git repo https://github.com/pop-os/popsicle
[INFO] finished tweaking git repo https://github.com/pop-os/popsicle
[INFO] tweaked toml for git repo https://github.com/pop-os/popsicle written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/pop-os/popsicle 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] error: the lock file /workspace/builds/worker-12/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[INFO] the lockfile is outdated, regenerating it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" "+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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 55da81dd9fbe593f1941f396a2393955c08000c90a5347445f46ef2b8c38d91d
[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" "55da81dd9fbe593f1941f396a2393955c08000c90a5347445f46ef2b8c38d91d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55da81dd9fbe593f1941f396a2393955c08000c90a5347445f46ef2b8c38d91d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55da81dd9fbe593f1941f396a2393955c08000c90a5347445f46ef2b8c38d91d", kill_on_drop: false }`
[INFO] [stdout] 55da81dd9fbe593f1941f396a2393955c08000c90a5347445f46ef2b8c38d91d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 35f77a635d830dbc66b9a37898563c0b3d99243abe6ef8ed73cb40da40c9a445
[INFO] running `Command { std: "docker" "start" "-a" "35f77a635d830dbc66b9a37898563c0b3d99243abe6ef8ed73cb40da40c9a445", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking as-result v0.2.1
[INFO] [stderr]     Checking genawaiter v0.2.2
[INFO] [stderr]     Checking mnt v0.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking ron v0.5.1
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking srmw v0.1.1
[INFO] [stderr]     Checking futures_codec v0.3.4
[INFO] [stderr]     Checking usb-disk-probe v0.1.0
[INFO] [stderr]     Checking popsicle v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.26s
[INFO] running `Command { std: "docker" "inspect" "35f77a635d830dbc66b9a37898563c0b3d99243abe6ef8ed73cb40da40c9a445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35f77a635d830dbc66b9a37898563c0b3d99243abe6ef8ed73cb40da40c9a445", kill_on_drop: false }`
[INFO] [stdout] 35f77a635d830dbc66b9a37898563c0b3d99243abe6ef8ed73cb40da40c9a445