[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 try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuttercup%2Fcrypto" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/buttercup/crypto on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", 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-0/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded block-cipher-trait v0.5.0
[INFO] [stderr]   Downloaded digest v0.7.2
[INFO] [stderr]   Downloaded rand v0.5.1
[INFO] [stderr]   Downloaded hmac v0.6.2
[INFO] [stderr]   Downloaded block-modes v0.1.0
[INFO] [stderr]   Downloaded arrayref v0.3.4
[INFO] [stderr]   Downloaded crypto-mac v0.6.0
[INFO] [stderr]   Downloaded block-padding v0.1.0
[INFO] [stderr]   Downloaded pbkdf2 v0.2.0
[INFO] [stderr]   Downloaded aes-soft v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4405002f46d21df40130e4e44964a4bdaf0be8a61884e7ca7b51215e13c24490
[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" "4405002f46d21df40130e4e44964a4bdaf0be8a61884e7ca7b51215e13c24490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4405002f46d21df40130e4e44964a4bdaf0be8a61884e7ca7b51215e13c24490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4405002f46d21df40130e4e44964a4bdaf0be8a61884e7ca7b51215e13c24490", kill_on_drop: false }`
[INFO] [stdout] 4405002f46d21df40130e4e44964a4bdaf0be8a61884e7ca7b51215e13c24490
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "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] b74fffbce24c268bb1ac1a8dc42473b28563c925fe9f0a78a42aba1d5b97d99c
[INFO] running `Command { std: "docker" "start" "-a" "b74fffbce24c268bb1ac1a8dc42473b28563c925fe9f0a78a42aba1d5b97d99c", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking block-padding v0.1.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.1.1
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking block-buffer v0.3.3
[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 crypto-mac v0.6.0
[INFO] [stderr]     Checking block-cipher-trait v0.5.0
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking block-modes v0.1.0
[INFO] [stderr]     Checking aes-soft v0.1.0
[INFO] [stderr]     Checking hmac v0.6.2
[INFO] [stderr]     Checking pbkdf2 v0.2.0
[INFO] [stderr]     Checking buttercup-crypto v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.19s
[INFO] running `Command { std: "docker" "inspect" "b74fffbce24c268bb1ac1a8dc42473b28563c925fe9f0a78a42aba1d5b97d99c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b74fffbce24c268bb1ac1a8dc42473b28563c925fe9f0a78a42aba1d5b97d99c", kill_on_drop: false }`
[INFO] [stdout] b74fffbce24c268bb1ac1a8dc42473b28563c925fe9f0a78a42aba1d5b97d99c