[INFO] fetching crate rusty-paper-wallet 0.6.0...
[INFO] checking rusty-paper-wallet-0.6.0 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate rusty-paper-wallet 0.6.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rusty-paper-wallet 0.6.0 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusty-paper-wallet 0.6.0
[INFO] finished tweaking crates.io crate rusty-paper-wallet 0.6.0
[INFO] tweaked toml for crates.io crate rusty-paper-wallet 0.6.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rusty-paper-wallet 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.41
[INFO] [stderr]   Downloaded secp256k1 v0.19.0
[INFO] [stderr]   Downloaded bitcoin_hashes v0.9.0
[INFO] [stderr]   Downloaded bech32 v0.7.2
[INFO] [stderr]   Downloaded secp256k1-sys v0.3.0
[INFO] [stderr]   Downloaded bitcoin v0.25.2
[INFO] [stderr]   Downloaded bmp-monochrome v1.0.0
[INFO] [stderr]   Downloaded qr_code v1.0.0
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2d3278dcdafbec671861f4dc3a4aa72e819ec6a196250a953ef815234c0b3fb
[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" "d2d3278dcdafbec671861f4dc3a4aa72e819ec6a196250a953ef815234c0b3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2d3278dcdafbec671861f4dc3a4aa72e819ec6a196250a953ef815234c0b3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2d3278dcdafbec671861f4dc3a4aa72e819ec6a196250a953ef815234c0b3fb", kill_on_drop: false }`
[INFO] [stdout] d2d3278dcdafbec671861f4dc3a4aa72e819ec6a196250a953ef815234c0b3fb
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68b5179225f7e44f9342bbdcc593b2ae563289a04b1ef7fbe664b0d9bbf22ff5
[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" "68b5179225f7e44f9342bbdcc593b2ae563289a04b1ef7fbe664b0d9bbf22ff5", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]     Checking bmp-monochrome v1.0.0
[INFO] [stderr]     Checking bitcoin_hashes v0.9.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking qr_code v1.0.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling secp256k1-sys v0.3.0
[INFO] [stderr]     Checking secp256k1 v0.19.0
[INFO] [stderr]     Checking bitcoin v0.25.2
[INFO] [stderr]     Checking rusty-paper-wallet v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.44s
[INFO] running `Command { std: "docker" "inspect" "68b5179225f7e44f9342bbdcc593b2ae563289a04b1ef7fbe664b0d9bbf22ff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68b5179225f7e44f9342bbdcc593b2ae563289a04b1ef7fbe664b0d9bbf22ff5", kill_on_drop: false }`
[INFO] [stdout] 68b5179225f7e44f9342bbdcc593b2ae563289a04b1ef7fbe664b0d9bbf22ff5