[INFO] cloning repository https://github.com/mothsmap/programmingbtc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mothsmap/programmingbtc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmothsmap%2Fprogrammingbtc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmothsmap%2Fprogrammingbtc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d69b681d4936d42b6d11c346aecadc4e8ec5a4ea
[INFO] checking mothsmap/programmingbtc against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmothsmap%2Fprogrammingbtc" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mothsmap/programmingbtc on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mothsmap/programmingbtc
[INFO] finished tweaking git repo https://github.com/mothsmap/programmingbtc
[INFO] tweaked toml for git repo https://github.com/mothsmap/programmingbtc written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mothsmap/programmingbtc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9da45b925458b5bc6325cedcd3fc2e970ee2111d4a4f896e776b54a26f35efdf
[INFO] running `Command { std: "docker" "start" "-a" "9da45b925458b5bc6325cedcd3fc2e970ee2111d4a4f896e776b54a26f35efdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9da45b925458b5bc6325cedcd3fc2e970ee2111d4a4f896e776b54a26f35efdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da45b925458b5bc6325cedcd3fc2e970ee2111d4a4f896e776b54a26f35efdf", kill_on_drop: false }`
[INFO] [stdout] 9da45b925458b5bc6325cedcd3fc2e970ee2111d4a4f896e776b54a26f35efdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5a9f29fb406db463e3442259668b80ccda29cf0f0e0d8a07b11ec2db0aa9584
[INFO] running `Command { std: "docker" "start" "-a" "c5a9f29fb406db463e3442259668b80ccda29cf0f0e0d8a07b11ec2db0aa9584", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling openssl v0.10.62
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]    Compiling anyhow v1.0.76
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking ipnet v2.9.0
[INFO] [stderr]     Checking cpufeatures v0.2.11
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking hex-literal v0.4.1
[INFO] [stderr]     Checking murmur3 v0.5.2
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking h2 v0.3.22
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.23
[INFO] [stderr]     Checking programmingbtc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Euclid` is imported redundantly
[INFO] [stdout]   --> src/finite_cyclic_group.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     use super::*;
[INFO] [stdout]    |         -------- the item `Euclid` is already imported here
[INFO] [stdout] 90 |     use crate::utils::Hex;
[INFO] [stdout] 91 |     use num::traits::Euclid;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hash256` is imported redundantly
[INFO] [stdout]    --> src/private_key.rs:184:36
[INFO] [stdout]     |
[INFO] [stdout] 184 |     use crate::utils::{decode_hex, hash256, Hex};
[INFO] [stdout]     |                                    ^^^^^^^
[INFO] [stdout] 185 |
[INFO] [stdout] 186 |     use super::*;
[INFO] [stdout]     |         -------- the item `hash256` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cursor` is imported redundantly
[INFO] [stdout]    --> src/utils.rs:460:9
[INFO] [stdout]     |
[INFO] [stdout] 459 |     use super::*;
[INFO] [stdout]     |         -------- the item `Cursor` is already imported here
[INFO] [stdout] 460 |     use std::io::Cursor;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/utils.rs:127:25
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let mut data = bytes.clone().to_vec();
[INFO] [stdout]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[u8]` does not implement `Clone`, so calling `clone` on `&[u8]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/utils.rs:127:25
[INFO] [stdout]     |
[INFO] [stdout] 127 |     let mut data = bytes.clone().to_vec();
[INFO] [stdout]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[u8]` does not implement `Clone`, so calling `clone` on `&[u8]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.05s
[INFO] running `Command { std: "docker" "inspect" "c5a9f29fb406db463e3442259668b80ccda29cf0f0e0d8a07b11ec2db0aa9584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5a9f29fb406db463e3442259668b80ccda29cf0f0e0d8a07b11ec2db0aa9584", kill_on_drop: false }`
[INFO] [stdout] c5a9f29fb406db463e3442259668b80ccda29cf0f0e0d8a07b11ec2db0aa9584