[INFO] cloning repository https://github.com/duxet/json-dereferencer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duxet/json-dereferencer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduxet%2Fjson-dereferencer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduxet%2Fjson-dereferencer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a60b71f3cafba3c346edf8b7bd0cef08549505cb
[INFO] checking duxet/json-dereferencer against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduxet%2Fjson-dereferencer" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/duxet/json-dereferencer on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/duxet/json-dereferencer
[INFO] finished tweaking git repo https://github.com/duxet/json-dereferencer
[INFO] tweaked toml for git repo https://github.com/duxet/json-dereferencer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/duxet/json-dereferencer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0a43a093112603186a320957489cf1f74eacfd51aa0a368f40860474dfc94b7
[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" "f0a43a093112603186a320957489cf1f74eacfd51aa0a368f40860474dfc94b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0a43a093112603186a320957489cf1f74eacfd51aa0a368f40860474dfc94b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0a43a093112603186a320957489cf1f74eacfd51aa0a368f40860474dfc94b7", kill_on_drop: false }`
[INFO] [stdout] f0a43a093112603186a320957489cf1f74eacfd51aa0a368f40860474dfc94b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] e259ea188518282cf5c7e2fa33bd01774536bbb457cce2550702ebbf1d005f14
[INFO] running `Command { std: "docker" "start" "-a" "e259ea188518282cf5c7e2fa33bd01774536bbb457cce2550702ebbf1d005f14", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking serde v1.0.2
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking clap v2.23.2
[INFO] [stderr]     Checking serde_json v1.0.1
[INFO] [stderr]     Checking json-dereferencer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "e259ea188518282cf5c7e2fa33bd01774536bbb457cce2550702ebbf1d005f14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e259ea188518282cf5c7e2fa33bd01774536bbb457cce2550702ebbf1d005f14", kill_on_drop: false }`
[INFO] [stdout] e259ea188518282cf5c7e2fa33bd01774536bbb457cce2550702ebbf1d005f14