[INFO] cloning repository https://github.com/jonhoo/codecrafters-bittorrent-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonhoo/codecrafters-bittorrent-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Fcodecrafters-bittorrent-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Fcodecrafters-bittorrent-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9dc424d4699febed87fefe8eef94509ab5392b56
[INFO] checking jonhoo/codecrafters-bittorrent-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Fcodecrafters-bittorrent-rust" "/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/jonhoo/codecrafters-bittorrent-rust 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/jonhoo/codecrafters-bittorrent-rust
[INFO] finished tweaking git repo https://github.com/jonhoo/codecrafters-bittorrent-rust
[INFO] tweaked toml for git repo https://github.com/jonhoo/codecrafters-bittorrent-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jonhoo/codecrafters-bittorrent-rust 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 serde_bencode v0.2.4
[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] 00ee63a4b0e4e09c4431a6e3c84d58a297ea00aa4794cc29d4e9ae61e307c37e
[INFO] running `Command { std: "docker" "start" "-a" "00ee63a4b0e4e09c4431a6e3c84d58a297ea00aa4794cc29d4e9ae61e307c37e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00ee63a4b0e4e09c4431a6e3c84d58a297ea00aa4794cc29d4e9ae61e307c37e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00ee63a4b0e4e09c4431a6e3c84d58a297ea00aa4794cc29d4e9ae61e307c37e", kill_on_drop: false }`
[INFO] [stdout] 00ee63a4b0e4e09c4431a6e3c84d58a297ea00aa4794cc29d4e9ae61e307c37e
[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] 6d43ebc4a3e32b369ecff5598f46d3580027ee32d9ecdbb793413492d9ed4abd
[INFO] running `Command { std: "docker" "start" "-a" "6d43ebc4a3e32b369ecff5598f46d3580027ee32d9ecdbb793413492d9ed4abd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling openssl-sys v0.9.95
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling openssl v0.10.59
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]    Compiling rustix v0.38.24
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]     Checking clap_builder v4.4.8
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking kanal v0.1.0-pre8
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking tempfile v3.8.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking thiserror v1.0.50
[INFO] [stderr]     Checking clap v4.4.8
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
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[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_bytes v0.11.12
[INFO] [stderr]     Checking serde_bencode v0.2.4
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[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.22
[INFO] [stderr]     Checking bittorrent-starter-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `addr` is never read
[INFO] [stdout]   --> src/peer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct Peer {
[INFO] [stdout]    |                   ---- field in this struct
[INFO] [stdout] 15 |     addr: SocketAddrV4,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `addr` is never read
[INFO] [stdout]   --> src/peer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct Peer {
[INFO] [stdout]    |                   ---- field in this struct
[INFO] [stdout] 15 |     addr: SocketAddrV4,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pieces` is never used
[INFO] [stdout]    --> src/peer.rs:211:19
[INFO] [stdout]     |
[INFO] [stdout] 201 | impl Bitfield {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 211 |     pub(crate) fn pieces(&self) -> impl Iterator<Item = usize> + '_ {
[INFO] [stdout]     |                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_bencode` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde_bencode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `serde_bencode` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_bencode` is imported redundantly
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde_bencode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `serde_bencode` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.74s
[INFO] running `Command { std: "docker" "inspect" "6d43ebc4a3e32b369ecff5598f46d3580027ee32d9ecdbb793413492d9ed4abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d43ebc4a3e32b369ecff5598f46d3580027ee32d9ecdbb793413492d9ed4abd", kill_on_drop: false }`
[INFO] [stdout] 6d43ebc4a3e32b369ecff5598f46d3580027ee32d9ecdbb793413492d9ed4abd