[INFO] fetching crate decent-serde-json-alternative 0.4.0...
[INFO] checking decent-serde-json-alternative-0.4.0 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate decent-serde-json-alternative 0.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate decent-serde-json-alternative 0.4.0 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate decent-serde-json-alternative 0.4.0
[INFO] finished tweaking crates.io crate decent-serde-json-alternative 0.4.0
[INFO] tweaked toml for crates.io crate decent-serde-json-alternative 0.4.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee5e51bd7b3e136193982b017a2b4ac9c707dc318800631a43698e1d626bf3c5
[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" "ee5e51bd7b3e136193982b017a2b4ac9c707dc318800631a43698e1d626bf3c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee5e51bd7b3e136193982b017a2b4ac9c707dc318800631a43698e1d626bf3c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee5e51bd7b3e136193982b017a2b4ac9c707dc318800631a43698e1d626bf3c5", kill_on_drop: false }`
[INFO] [stdout] ee5e51bd7b3e136193982b017a2b4ac9c707dc318800631a43698e1d626bf3c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef63ade59b8eaaaf7b718565f56a922d32dda5664cd5782c03e8e4e40e50c9b6
[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" "ef63ade59b8eaaaf7b718565f56a922d32dda5664cd5782c03e8e4e40e50c9b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling decent-synquote-alternative v0.3.0
[INFO] [stderr]    Compiling decent-serde-json-derive-alternative v0.4.0
[INFO] [stderr]     Checking decent-serde-json-alternative v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.53s
[INFO] running `Command { std: "docker" "inspect" "ef63ade59b8eaaaf7b718565f56a922d32dda5664cd5782c03e8e4e40e50c9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef63ade59b8eaaaf7b718565f56a922d32dda5664cd5782c03e8e4e40e50c9b6", kill_on_drop: false }`
[INFO] [stdout] ef63ade59b8eaaaf7b718565f56a922d32dda5664cd5782c03e8e4e40e50c9b6