[INFO] cloning repository https://github.com/paoloposso/rust_coin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/paoloposso/rust_coin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaoloposso%2Frust_coin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaoloposso%2Frust_coin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e565a8f2747817e7d93bae84ce06a5bba5d629d5
[INFO] checking paoloposso/rust_coin against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaoloposso%2Frust_coin" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paoloposso/rust_coin on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/paoloposso/rust_coin
[INFO] finished tweaking git repo https://github.com/paoloposso/rust_coin
[INFO] tweaked toml for git repo https://github.com/paoloposso/rust_coin written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/paoloposso/rust_coin already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded commoncrypto-sys v0.2.0
[INFO] [stderr]   Downloaded crypto-hash v0.3.4
[INFO] [stderr]   Downloaded commoncrypto v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", 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] 26e5a7fcf02a9e3e5e6690f95c192f5f462ed2de3ff003b54e12d8a1415ab9f4
[INFO] running `Command { std: "docker" "start" "-a" "26e5a7fcf02a9e3e5e6690f95c192f5f462ed2de3ff003b54e12d8a1415ab9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26e5a7fcf02a9e3e5e6690f95c192f5f462ed2de3ff003b54e12d8a1415ab9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26e5a7fcf02a9e3e5e6690f95c192f5f462ed2de3ff003b54e12d8a1415ab9f4", kill_on_drop: false }`
[INFO] [stdout] 26e5a7fcf02a9e3e5e6690f95c192f5f462ed2de3ff003b54e12d8a1415ab9f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95c8f0d561bda11ab79d9ac327d839da4bbb4dddbe412404cc778504f5d2fb76
[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" "95c8f0d561bda11ab79d9ac327d839da4bbb4dddbe412404cc778504f5d2fb76", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking signature v1.3.0
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]     Checking ed25519 v1.0.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking zeroize v1.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking curve25519-dalek v3.0.2
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking crypto-hash v0.3.4
[INFO] [stderr]     Checking rust_coin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.71s
[INFO] running `Command { std: "docker" "inspect" "95c8f0d561bda11ab79d9ac327d839da4bbb4dddbe412404cc778504f5d2fb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95c8f0d561bda11ab79d9ac327d839da4bbb4dddbe412404cc778504f5d2fb76", kill_on_drop: false }`
[INFO] [stdout] 95c8f0d561bda11ab79d9ac327d839da4bbb4dddbe412404cc778504f5d2fb76