[INFO] cloning repository https://github.com/dowdiness/rust-tiny-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dowdiness/rust-tiny-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Frust-tiny-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Frust-tiny-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2330ccd3d119c342c4a0e4774d3565765b00d397
[INFO] checking dowdiness/rust-tiny-compiler against master#2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a for pr-145113
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Frust-tiny-compiler" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dowdiness/rust-tiny-compiler
[INFO] finished tweaking git repo https://github.com/dowdiness/rust-tiny-compiler
[INFO] tweaked toml for git repo https://github.com/dowdiness/rust-tiny-compiler written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dowdiness/rust-tiny-compiler on toolchain 2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dowdiness/rust-tiny-compiler 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" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b60ce8be12b04b7c68ea71baa8706f59d1ed19cbf5ccf11050e509b3a57e510
[INFO] running `Command { std: "docker" "start" "-a" "5b60ce8be12b04b7c68ea71baa8706f59d1ed19cbf5ccf11050e509b3a57e510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b60ce8be12b04b7c68ea71baa8706f59d1ed19cbf5ccf11050e509b3a57e510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b60ce8be12b04b7c68ea71baa8706f59d1ed19cbf5ccf11050e509b3a57e510", kill_on_drop: false }`
[INFO] [stdout] 5b60ce8be12b04b7c68ea71baa8706f59d1ed19cbf5ccf11050e509b3a57e510
[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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+2886b36df4a646dd8d82fb65bf0c9d8d96c1f71a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d91a872f056dadfec499c08c06175752e062a158db38ed7761b6a54f74aba2e
[INFO] running `Command { std: "docker" "start" "-a" "3d91a872f056dadfec499c08c06175752e062a158db38ed7761b6a54f74aba2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rust-tiny-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `type`, `name`, and `value` are never read
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct AstNode {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 13 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 14 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     value: Option<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstNode` 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: field `type` is never read
[INFO] [stdout]   --> src/parser.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Ast {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 21 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `type`, `name`, and `value` are never read
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct AstNode {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 13 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 14 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     value: Option<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstNode` 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: field `type` is never read
[INFO] [stdout]   --> src/parser.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Ast {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 21 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "3d91a872f056dadfec499c08c06175752e062a158db38ed7761b6a54f74aba2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d91a872f056dadfec499c08c06175752e062a158db38ed7761b6a54f74aba2e", kill_on_drop: false }`
[INFO] [stdout] 3d91a872f056dadfec499c08c06175752e062a158db38ed7761b6a54f74aba2e