[INFO] cloning repository https://github.com/mwillsey/egg-herbie-new
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwillsey/egg-herbie-new" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwillsey%2Fegg-herbie-new", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwillsey%2Fegg-herbie-new'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8615590ff4ca07703c4b602f7d1b542e6465cfa6
[INFO] checking mwillsey/egg-herbie-new against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwillsey%2Fegg-herbie-new" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mwillsey/egg-herbie-new on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mwillsey/egg-herbie-new
[INFO] finished tweaking git repo https://github.com/mwillsey/egg-herbie-new
[INFO] tweaked toml for git repo https://github.com/mwillsey/egg-herbie-new written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/mwillsey/egg-herbie-new already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/mwillsey/egg`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded instant v0.1.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.14
[INFO] [stderr]   Downloaded symbolic_expressions v5.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 254bc93bf83bd2492ab9a0983641a5b9eaece6dd4052f9df120152aac0aa7fc6
[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" "254bc93bf83bd2492ab9a0983641a5b9eaece6dd4052f9df120152aac0aa7fc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "254bc93bf83bd2492ab9a0983641a5b9eaece6dd4052f9df120152aac0aa7fc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254bc93bf83bd2492ab9a0983641a5b9eaece6dd4052f9df120152aac0aa7fc6", kill_on_drop: false }`
[INFO] [stdout] 254bc93bf83bd2492ab9a0983641a5b9eaece6dd4052f9df120152aac0aa7fc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "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] 26ebb7fe2603056e9c0389a19f677d40805714f594d0f664cf5d709eedbf5bdc
[INFO] running `Command { std: "docker" "start" "-a" "26ebb7fe2603056e9c0389a19f677d40805714f594d0f664cf5d709eedbf5bdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.14
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking instant v0.1.4
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking symbolic_expressions v5.0.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking egg v0.4.2-dev (https://github.com/mwillsey/egg?rev=986bff5c7d2e050e9aa980671c4c7d971c07da6f#986bff5c)
[INFO] [stderr]     Checking egg-herbie-new v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.75s
[INFO] running `Command { std: "docker" "inspect" "26ebb7fe2603056e9c0389a19f677d40805714f594d0f664cf5d709eedbf5bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26ebb7fe2603056e9c0389a19f677d40805714f594d0f664cf5d709eedbf5bdc", kill_on_drop: false }`
[INFO] [stdout] 26ebb7fe2603056e9c0389a19f677d40805714f594d0f664cf5d709eedbf5bdc