[INFO] cloning repository https://github.com/ldhhello/classcard-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ldhhello/classcard-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fldhhello%2Fclasscard-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fldhhello%2Fclasscard-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c97700566a7a1bd2b7fbceca98a9bcad9c83fc4
[INFO] checking ldhhello/classcard-rust against master#42f4793e5a514858221b07ac379029d90353913e for pr-148952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fldhhello%2Fclasscard-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ldhhello/classcard-rust
[INFO] finished tweaking git repo https://github.com/ldhhello/classcard-rust
[INFO] tweaked toml for git repo https://github.com/ldhhello/classcard-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ldhhello/classcard-rust on toolchain 42f4793e5a514858221b07ac379029d90353913e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ldhhello/classcard-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" "+42f4793e5a514858221b07ac379029d90353913e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9de9fa4c48a1dac9f41f0e44eacec28c2add7fabe2048b5cd3ae7b110615317
[INFO] running `Command { std: "docker" "start" "-a" "a9de9fa4c48a1dac9f41f0e44eacec28c2add7fabe2048b5cd3ae7b110615317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9de9fa4c48a1dac9f41f0e44eacec28c2add7fabe2048b5cd3ae7b110615317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9de9fa4c48a1dac9f41f0e44eacec28c2add7fabe2048b5cd3ae7b110615317", kill_on_drop: false }`
[INFO] [stdout] a9de9fa4c48a1dac9f41f0e44eacec28c2add7fabe2048b5cd3ae7b110615317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e9ab504b66eb298a874b921502483f88627bcdab802b6888dc4c4c01b585759
[INFO] running `Command { std: "docker" "start" "-a" "9e9ab504b66eb298a874b921502483f88627bcdab802b6888dc4c4c01b585759", kill_on_drop: false }`
[INFO] [stderr]     Checking bytes v1.6.1
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling cc v1.1.6
[INFO] [stderr]    Compiling openssl v0.10.66
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[INFO] [stdout] warning: method `set_user_agent` is never used
[INFO] [stdout]    --> src/classcard/socket.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl Socket {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn set_user_agent(mut self, agent: String) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QuestOption` is never constructed
[INFO] [stdout]    --> src/classcard/socket.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct QuestOption {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SendRankResult` is never constructed
[INFO] [stdout]    --> src/classcard/socket.rs:308:12
[INFO] [stdout]     |
[INFO] [stdout] 308 | pub struct SendRankResult {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_user_agent` is never used
[INFO] [stdout]    --> src/classcard/socket.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout]  28 | impl Socket {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub fn set_user_agent(mut self, agent: String) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `QuestOption` is never constructed
[INFO] [stdout]    --> src/classcard/socket.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct QuestOption {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SendRankResult` is never constructed
[INFO] [stdout]    --> src/classcard/socket.rs:308:12
[INFO] [stdout]     |
[INFO] [stdout] 308 | pub struct SendRankResult {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.60s
[INFO] running `Command { std: "docker" "inspect" "9e9ab504b66eb298a874b921502483f88627bcdab802b6888dc4c4c01b585759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e9ab504b66eb298a874b921502483f88627bcdab802b6888dc4c4c01b585759", kill_on_drop: false }`
[INFO] [stdout] 9e9ab504b66eb298a874b921502483f88627bcdab802b6888dc4c4c01b585759