[INFO] cloning repository https://github.com/buttercup/crypto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/buttercup/crypto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuttercup%2Fcrypto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuttercup%2Fcrypto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58f4e97841148a4a373372e2db060acc83c1c28f
[INFO] checking buttercup/crypto against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuttercup%2Fcrypto" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/buttercup/crypto on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/buttercup/crypto
[INFO] finished tweaking git repo https://github.com/buttercup/crypto
[INFO] tweaked toml for git repo https://github.com/buttercup/crypto written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/buttercup/crypto already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09f15e1337c4e23b8c63b9ee4e23c279024fabf01beb5e18211d5e55af260096
[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" "09f15e1337c4e23b8c63b9ee4e23c279024fabf01beb5e18211d5e55af260096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09f15e1337c4e23b8c63b9ee4e23c279024fabf01beb5e18211d5e55af260096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09f15e1337c4e23b8c63b9ee4e23c279024fabf01beb5e18211d5e55af260096", kill_on_drop: false }`
[INFO] [stdout] 09f15e1337c4e23b8c63b9ee4e23c279024fabf01beb5e18211d5e55af260096
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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] ec53d8fc390a17ec7171ace614fd64b42cd0d51f76fd487c5bd2c770cac3f8cc
[INFO] running `Command { std: "docker" "start" "-a" "ec53d8fc390a17ec7171ace614fd64b42cd0d51f76fd487c5bd2c770cac3f8cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking block-padding v0.1.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking opaque-debug v0.1.1
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking rand v0.5.1
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking digest v0.7.2
[INFO] [stderr]     Checking block-cipher-trait v0.5.0
[INFO] [stderr]     Checking crypto-mac v0.6.0
[INFO] [stderr]     Checking pbkdf2 v0.2.0
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking hmac v0.6.2
[INFO] [stderr]     Checking aes-soft v0.1.0
[INFO] [stderr]     Checking block-modes v0.1.0
[INFO] [stderr]     Checking buttercup-crypto v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.55s
[INFO] running `Command { std: "docker" "inspect" "ec53d8fc390a17ec7171ace614fd64b42cd0d51f76fd487c5bd2c770cac3f8cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec53d8fc390a17ec7171ace614fd64b42cd0d51f76fd487c5bd2c770cac3f8cc", kill_on_drop: false }`
[INFO] [stdout] ec53d8fc390a17ec7171ace614fd64b42cd0d51f76fd487c5bd2c770cac3f8cc