[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] building dowdiness/rust-tiny-compiler against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Frust-tiny-compiler" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dowdiness/rust-tiny-compiler on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc1/source/Cargo.toml
[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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fadfd99c7ab4dc72a94bc9cbfc30f0a5ba68f1f2eaf90d1be99ef874dde4f62c
[INFO] running `Command { std: "docker" "start" "-a" "fadfd99c7ab4dc72a94bc9cbfc30f0a5ba68f1f2eaf90d1be99ef874dde4f62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fadfd99c7ab4dc72a94bc9cbfc30f0a5ba68f1f2eaf90d1be99ef874dde4f62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fadfd99c7ab4dc72a94bc9cbfc30f0a5ba68f1f2eaf90d1be99ef874dde4f62c", kill_on_drop: false }`
[INFO] [stdout] fadfd99c7ab4dc72a94bc9cbfc30f0a5ba68f1f2eaf90d1be99ef874dde4f62c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7868a37d6dd15ac2f3c82ce39411344e8a266be129fa2100ad1e1c989cbcc45
[INFO] running `Command { std: "docker" "start" "-a" "e7868a37d6dd15ac2f3c82ce39411344e8a266be129fa2100ad1e1c989cbcc45", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "e7868a37d6dd15ac2f3c82ce39411344e8a266be129fa2100ad1e1c989cbcc45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7868a37d6dd15ac2f3c82ce39411344e8a266be129fa2100ad1e1c989cbcc45", kill_on_drop: false }`
[INFO] [stdout] e7868a37d6dd15ac2f3c82ce39411344e8a266be129fa2100ad1e1c989cbcc45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5b85177c421a58e51f07abcd5031215b966d8b4b0fde94550b477c25e001898
[INFO] running `Command { std: "docker" "start" "-a" "d5b85177c421a58e51f07abcd5031215b966d8b4b0fde94550b477c25e001898", kill_on_drop: false }`
[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] [stderr]    Compiling rust-tiny-compiler v0.1.0 (/opt/rustwide/workdir)
[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 `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "d5b85177c421a58e51f07abcd5031215b966d8b4b0fde94550b477c25e001898", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5b85177c421a58e51f07abcd5031215b966d8b4b0fde94550b477c25e001898", kill_on_drop: false }`
[INFO] [stdout] d5b85177c421a58e51f07abcd5031215b966d8b4b0fde94550b477c25e001898