[INFO] cloning repository https://github.com/FUTingFei/programming_bitcoin_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FUTingFei/programming_bitcoin_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFUTingFei%2Fprogramming_bitcoin_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFUTingFei%2Fprogramming_bitcoin_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc82c9124a853f5ecc698d700dffc4a5be02a1e1
[INFO] testing FUTingFei/programming_bitcoin_rust against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFUTingFei%2Fprogramming_bitcoin_rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FUTingFei/programming_bitcoin_rust on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FUTingFei/programming_bitcoin_rust
[INFO] finished tweaking git repo https://github.com/FUTingFei/programming_bitcoin_rust
[INFO] tweaked toml for git repo https://github.com/FUTingFei/programming_bitcoin_rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/FUTingFei/programming_bitcoin_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] 86e25fd3ea863362dfe349da3da13c283a5d7c738c5a7ec26033b375d7c94d84
[INFO] running `Command { std: "docker" "start" "-a" "86e25fd3ea863362dfe349da3da13c283a5d7c738c5a7ec26033b375d7c94d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86e25fd3ea863362dfe349da3da13c283a5d7c738c5a7ec26033b375d7c94d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86e25fd3ea863362dfe349da3da13c283a5d7c738c5a7ec26033b375d7c94d84", kill_on_drop: false }`
[INFO] [stdout] 86e25fd3ea863362dfe349da3da13c283a5d7c738c5a7ec26033b375d7c94d84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--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] 8b13221b86870068ff566d79c288ae33d1ceea4c5a04e69176357e55dbff6d9a
[INFO] running `Command { std: "docker" "start" "-a" "8b13221b86870068ff566d79c288ae33d1ceea4c5a04e69176357e55dbff6d9a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling programming_bitcoin_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::chapter03_2`
[INFO] [stdout]  --> src/chapter03_4.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::chapter03_2;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `core::num::<impl u64>::pow` is not yet stable as a const fn
[INFO] [stdout]  --> src/chapter03_4.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | const P:u64 = 2u64.pow(256)- 2u64.pow(32) - 977;
[INFO] [stdout]   |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `core::num::<impl u64>::pow` is not yet stable as a const fn
[INFO] [stdout]  --> src/chapter03_4.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | const P:u64 = 2u64.pow(256)- 2u64.pow(32) - 977;
[INFO] [stdout]   |                              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `programming_bitcoin_rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "8b13221b86870068ff566d79c288ae33d1ceea4c5a04e69176357e55dbff6d9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b13221b86870068ff566d79c288ae33d1ceea4c5a04e69176357e55dbff6d9a", kill_on_drop: false }`
[INFO] [stdout] 8b13221b86870068ff566d79c288ae33d1ceea4c5a04e69176357e55dbff6d9a