[INFO] cloning repository https://github.com/do7be/rust-nlp100
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/do7be/rust-nlp100" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdo7be%2Frust-nlp100", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdo7be%2Frust-nlp100'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4399481064ca30544066098fc930c37613e2839f
[INFO] checking do7be/rust-nlp100 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdo7be%2Frust-nlp100" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/do7be/rust-nlp100 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/do7be/rust-nlp100
[INFO] finished tweaking git repo https://github.com/do7be/rust-nlp100
[INFO] tweaked toml for git repo https://github.com/do7be/rust-nlp100 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/do7be/rust-nlp100 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base64 v0.21.3
[INFO] [stderr]   Downloaded openssl-sys v0.9.92
[INFO] [stderr]   Downloaded memchr v2.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2be4a207ceacb1a163e71b18d933662ef0aedf357c6d5f334521b7c32ff6c7d4
[INFO] running `Command { std: "docker" "start" "-a" "2be4a207ceacb1a163e71b18d933662ef0aedf357c6d5f334521b7c32ff6c7d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2be4a207ceacb1a163e71b18d933662ef0aedf357c6d5f334521b7c32ff6c7d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2be4a207ceacb1a163e71b18d933662ef0aedf357c6d5f334521b7c32ff6c7d4", kill_on_drop: false }`
[INFO] [stdout] 2be4a207ceacb1a163e71b18d933662ef0aedf357c6d5f334521b7c32ff6c7d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00e263f010e84b0564c137ffd987fba917797fefb5accf9fc34498f05278c784
[INFO] running `Command { std: "docker" "start" "-a" "00e263f010e84b0564c137ffd987fba917797fefb5accf9fc34498f05278c784", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling openssl-sys v0.9.92
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking memchr v2.6.2
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking base64 v0.21.3
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]    Compiling openssl v0.10.57
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking regex-automata v0.3.7
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking regex v1.9.4
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.21
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
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[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.20
[INFO] [stderr]     Checking rust-nlp100 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `descriptionurl` and `descriptionshorturl` are never read
[INFO] [stdout]   --> src/3_29/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct ImageInfo {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 9  |     url: String,
[INFO] [stdout] 10 |     descriptionurl: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 11 |     descriptionshorturl: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ns`, `title`, `missing`, `known`, and `imagerepository` are never read
[INFO] [stdout]   --> src/3_29/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Page {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 16 |     ns: i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 17 |     title: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     missing: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 19 |     known: Option<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     imagerepository: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Page` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `descriptionurl` and `descriptionshorturl` are never read
[INFO] [stdout]   --> src/3_29/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct ImageInfo {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 9  |     url: String,
[INFO] [stdout] 10 |     descriptionurl: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 11 |     descriptionshorturl: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ImageInfo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ns`, `title`, `missing`, `known`, and `imagerepository` are never read
[INFO] [stdout]   --> src/3_29/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Page {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 16 |     ns: i32,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 17 |     title: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 18 |     missing: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 19 |     known: Option<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     imagerepository: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Page` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.40s
[INFO] running `Command { std: "docker" "inspect" "00e263f010e84b0564c137ffd987fba917797fefb5accf9fc34498f05278c784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e263f010e84b0564c137ffd987fba917797fefb5accf9fc34498f05278c784", kill_on_drop: false }`
[INFO] [stdout] 00e263f010e84b0564c137ffd987fba917797fefb5accf9fc34498f05278c784