[INFO] cloning repository https://github.com/clifton/rust-averaged-collection
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clifton/rust-averaged-collection" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclifton%2Frust-averaged-collection", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclifton%2Frust-averaged-collection'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 971f2b1e479be38f3c0d1f8f1e3e3ab56d7da233
[INFO] checking clifton/rust-averaged-collection against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclifton%2Frust-averaged-collection" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clifton/rust-averaged-collection on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/clifton/rust-averaged-collection
[INFO] finished tweaking git repo https://github.com/clifton/rust-averaged-collection
[INFO] tweaked toml for git repo https://github.com/clifton/rust-averaged-collection written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/clifton/rust-averaged-collection already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bf9ba08f98ecd07d1c67b050d84cb38bcbc312cb7fbc4c91ce83c6c01a9fd32
[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" "7bf9ba08f98ecd07d1c67b050d84cb38bcbc312cb7fbc4c91ce83c6c01a9fd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bf9ba08f98ecd07d1c67b050d84cb38bcbc312cb7fbc4c91ce83c6c01a9fd32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bf9ba08f98ecd07d1c67b050d84cb38bcbc312cb7fbc4c91ce83c6c01a9fd32", kill_on_drop: false }`
[INFO] [stdout] 7bf9ba08f98ecd07d1c67b050d84cb38bcbc312cb7fbc4c91ce83c6c01a9fd32
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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] b5684f31242d2f4b553f9b9b1152973cb7a5fc88449712beb39dbbe6f98870c7
[INFO] running `Command { std: "docker" "start" "-a" "b5684f31242d2f4b553f9b9b1152973cb7a5fc88449712beb39dbbe6f98870c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling fsio v0.1.3
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling nias v0.5.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking envmnt v0.8.4
[INFO] [stderr]     Checking ci_info v0.10.2
[INFO] [stderr]     Checking averaged_collection v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]    Compiling rusty-hook v0.11.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.86s
[INFO] running `Command { std: "docker" "inspect" "b5684f31242d2f4b553f9b9b1152973cb7a5fc88449712beb39dbbe6f98870c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5684f31242d2f4b553f9b9b1152973cb7a5fc88449712beb39dbbe6f98870c7", kill_on_drop: false }`
[INFO] [stdout] b5684f31242d2f4b553f9b9b1152973cb7a5fc88449712beb39dbbe6f98870c7