[INFO] cloning repository https://github.com/Alexius-Huang/rustful-json-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Alexius-Huang/rustful-json-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexius-Huang%2Frustful-json-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexius-Huang%2Frustful-json-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 150835c57ce2fddce89805d7e28ac251261519cc
[INFO] checking Alexius-Huang/rustful-json-server/150835c57ce2fddce89805d7e28ac251261519cc against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexius-Huang%2Frustful-json-server" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Alexius-Huang/rustful-json-server on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Alexius-Huang/rustful-json-server
[INFO] finished tweaking git repo https://github.com/Alexius-Huang/rustful-json-server
[INFO] tweaked toml for git repo https://github.com/Alexius-Huang/rustful-json-server written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Alexius-Huang/rustful-json-server 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 733b9b0e61c3a3b7e919632940f3975abc1bc4b4393766c7917b2af4d6753b61
[INFO] running `Command { std: "docker" "start" "-a" "733b9b0e61c3a3b7e919632940f3975abc1bc4b4393766c7917b2af4d6753b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "733b9b0e61c3a3b7e919632940f3975abc1bc4b4393766c7917b2af4d6753b61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "733b9b0e61c3a3b7e919632940f3975abc1bc4b4393766c7917b2af4d6753b61", kill_on_drop: false }`
[INFO] [stdout] 733b9b0e61c3a3b7e919632940f3975abc1bc4b4393766c7917b2af4d6753b61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd1fe42f79b939f1db960926c4a4e9b0270ab83ae20c500b9f4571f9eea3a04c
[INFO] running `Command { std: "docker" "start" "-a" "bd1fe42f79b939f1db960926c4a4e9b0270ab83ae20c500b9f4571f9eea3a04c", kill_on_drop: false }`
[INFO] [stderr]     Checking rustful-json-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/server/request.rs:42:39
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct RequestInitializationError(String);
[INFO] [stdout]    |            -------------------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[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 `0` is never read
[INFO] [stdout]   --> src/server/request.rs:42:39
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct RequestInitializationError(String);
[INFO] [stdout]    |            -------------------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "bd1fe42f79b939f1db960926c4a4e9b0270ab83ae20c500b9f4571f9eea3a04c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd1fe42f79b939f1db960926c4a4e9b0270ab83ae20c500b9f4571f9eea3a04c", kill_on_drop: false }`
[INFO] [stdout] bd1fe42f79b939f1db960926c4a4e9b0270ab83ae20c500b9f4571f9eea3a04c