[INFO] cloning repository https://github.com/pigeon-working-group/serde-perf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pigeon-working-group/serde-perf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpigeon-working-group%2Fserde-perf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpigeon-working-group%2Fserde-perf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f51f0bc263632e4b03791f2b56958bed69a38bb
[INFO] checking pigeon-working-group/serde-perf against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpigeon-working-group%2Fserde-perf" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pigeon-working-group/serde-perf 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/pigeon-working-group/serde-perf
[INFO] finished tweaking git repo https://github.com/pigeon-working-group/serde-perf
[INFO] tweaked toml for git repo https://github.com/pigeon-working-group/serde-perf written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/pigeon-working-group/serde-perf 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] fd0f8f30f54d8eb5bfc60843fdbbe7088a53a162d2de28e9c3738a5f4241bec4
[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" "fd0f8f30f54d8eb5bfc60843fdbbe7088a53a162d2de28e9c3738a5f4241bec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd0f8f30f54d8eb5bfc60843fdbbe7088a53a162d2de28e9c3738a5f4241bec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd0f8f30f54d8eb5bfc60843fdbbe7088a53a162d2de28e9c3738a5f4241bec4", kill_on_drop: false }`
[INFO] [stdout] fd0f8f30f54d8eb5bfc60843fdbbe7088a53a162d2de28e9c3738a5f4241bec4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stdout] 1ef35458ae58a7f58b282031bd2bffa0dd104bc6adfaef450e7bdc9335762a86
[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" "1ef35458ae58a7f58b282031bd2bffa0dd104bc6adfaef450e7bdc9335762a86", kill_on_drop: false }`
[INFO] [stderr]     Checking iter-read v0.1.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking hostname v0.1.4
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking rmp v0.8.7
[INFO] [stderr]     Checking serde_json v1.0.11
[INFO] [stderr]     Checking serde-pickle v0.4.0
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking bincode v1.0.0
[INFO] [stderr]     Checking serde_cbor v0.8.2
[INFO] [stderr]     Checking ron v0.2.0
[INFO] [stderr]     Checking bson v0.11.1
[INFO] [stderr]     Checking serde-perf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:65:52
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let mut perf_tests: BTreeMap<&'static str, Box<Fn(&PubMessage)>> =
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&PubMessage)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:65:52
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let mut perf_tests: BTreeMap<&'static str, Box<Fn(&PubMessage)>> =
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&PubMessage)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.80s
[INFO] running `Command { std: "docker" "inspect" "1ef35458ae58a7f58b282031bd2bffa0dd104bc6adfaef450e7bdc9335762a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef35458ae58a7f58b282031bd2bffa0dd104bc6adfaef450e7bdc9335762a86", kill_on_drop: false }`
[INFO] [stdout] 1ef35458ae58a7f58b282031bd2bffa0dd104bc6adfaef450e7bdc9335762a86