[INFO] fetching crate docked 0.0.24...
[INFO] checking docked-0.0.24 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate docked 0.0.24 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate docked 0.0.24 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate docked 0.0.24
[INFO] finished tweaking crates.io crate docked 0.0.24
[INFO] tweaked toml for crates.io crate docked 0.0.24 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate docked 0.0.24 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f900c4d7bafa5f02c236e75a34a4382de5f72d177150204188f694e809a9c7cf
[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" "f900c4d7bafa5f02c236e75a34a4382de5f72d177150204188f694e809a9c7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f900c4d7bafa5f02c236e75a34a4382de5f72d177150204188f694e809a9c7cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f900c4d7bafa5f02c236e75a34a4382de5f72d177150204188f694e809a9c7cf", kill_on_drop: false }`
[INFO] [stdout] f900c4d7bafa5f02c236e75a34a4382de5f72d177150204188f694e809a9c7cf
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65bd69dadc92ca7bbc677996b9a45fa2a0a4ec7f81871bcb4f45960e2fd7779f
[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" "65bd69dadc92ca7bbc677996b9a45fa2a0a4ec7f81871bcb4f45960e2fd7779f", kill_on_drop: false }`
[INFO] [stderr]     Checking docked v0.0.24 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "65bd69dadc92ca7bbc677996b9a45fa2a0a4ec7f81871bcb4f45960e2fd7779f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65bd69dadc92ca7bbc677996b9a45fa2a0a4ec7f81871bcb4f45960e2fd7779f", kill_on_drop: false }`
[INFO] [stdout] 65bd69dadc92ca7bbc677996b9a45fa2a0a4ec7f81871bcb4f45960e2fd7779f