[INFO] cloning repository https://github.com/DeviousCilantro/membership-testing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DeviousCilantro/membership-testing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeviousCilantro%2Fmembership-testing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeviousCilantro%2Fmembership-testing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d49b34b9cbcf3cf22f68d7b65c854364af87a5b9
[INFO] checking DeviousCilantro/membership-testing against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeviousCilantro%2Fmembership-testing" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DeviousCilantro/membership-testing on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DeviousCilantro/membership-testing
[INFO] finished tweaking git repo https://github.com/DeviousCilantro/membership-testing
[INFO] tweaked toml for git repo https://github.com/DeviousCilantro/membership-testing written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DeviousCilantro/membership-testing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpufeatures v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aefa51a83fe2fc78273bf01f47f1b39f9cd64321cf70eaa565c77261b1de1829
[INFO] running `Command { std: "docker" "start" "-a" "aefa51a83fe2fc78273bf01f47f1b39f9cd64321cf70eaa565c77261b1de1829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aefa51a83fe2fc78273bf01f47f1b39f9cd64321cf70eaa565c77261b1de1829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aefa51a83fe2fc78273bf01f47f1b39f9cd64321cf70eaa565c77261b1de1829", kill_on_drop: false }`
[INFO] [stdout] aefa51a83fe2fc78273bf01f47f1b39f9cd64321cf70eaa565c77261b1de1829
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 285935a49838237c5ccfc1099e569c7ca864f8d393985fc52a72b56587623d1a
[INFO] running `Command { std: "docker" "start" "-a" "285935a49838237c5ccfc1099e569c7ca864f8d393985fc52a72b56587623d1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.5.3
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling rug v1.19.2
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]     Checking num-primes v0.3.0
[INFO] [stderr]     Checking membership-testing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 10s
[INFO] running `Command { std: "docker" "inspect" "285935a49838237c5ccfc1099e569c7ca864f8d393985fc52a72b56587623d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "285935a49838237c5ccfc1099e569c7ca864f8d393985fc52a72b56587623d1a", kill_on_drop: false }`
[INFO] [stdout] 285935a49838237c5ccfc1099e569c7ca864f8d393985fc52a72b56587623d1a