[INFO] cloning repository https://github.com/lionel626/ast-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lionel626/ast-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flionel626%2Fast-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flionel626%2Fast-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adc5601682eeff50c7a77e1255873d55290dfb10
[INFO] checking lionel626/ast-test against try#9961e55b3687a6d0b2bab4af0e5e81494b09be81 for pr-139087-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flionel626%2Fast-test" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lionel626/ast-test
[INFO] finished tweaking git repo https://github.com/lionel626/ast-test
[INFO] tweaked toml for git repo https://github.com/lionel626/ast-test written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lionel626/ast-test on toolchain 9961e55b3687a6d0b2bab4af0e5e81494b09be81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lionel626/ast-test 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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fa913fc525831c959c6b52c9f77894ae7d605bb76b149a2cc8a0c6a52de8417
[INFO] running `Command { std: "docker" "start" "-a" "9fa913fc525831c959c6b52c9f77894ae7d605bb76b149a2cc8a0c6a52de8417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fa913fc525831c959c6b52c9f77894ae7d605bb76b149a2cc8a0c6a52de8417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fa913fc525831c959c6b52c9f77894ae7d605bb76b149a2cc8a0c6a52de8417", kill_on_drop: false }`
[INFO] [stdout] 9fa913fc525831c959c6b52c9f77894ae7d605bb76b149a2cc8a0c6a52de8417
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fc4b7a16e286f7ca3b44b6ef63e9e09dd4cf6f12d902f7a5680f59cb9d20df1
[INFO] running `Command { std: "docker" "start" "-a" "8fc4b7a16e286f7ca3b44b6ef63e9e09dd4cf6f12d902f7a5680f59cb9d20df1", kill_on_drop: false }`
[INFO] [stderr]     Checking ast-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `MINUS` and `DIV` are never constructed
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum NodeType {
[INFO] [stdout]   |      -------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     MINUS,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 6 |     MUL,
[INFO] [stdout] 7 |     DIV
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_parent` is never used
[INFO] [stdout]   --> src/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | trait ASTNode<T> {
[INFO] [stdout]    |       ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn get_parent(&self) -> &Option<Box<dyn ASTNode<T>>>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct ASTNodeLiteral<T> {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 17 |     value: T,
[INFO] [stdout] 18 |     parent: Option<Box<dyn ASTNode<T>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/main.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct ASTNodePlus<T> {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 47 |     value: T,
[INFO] [stdout] 48 |     parent: Option<Box<dyn ASTNode<T>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTNodeMinus` is never constructed
[INFO] [stdout]   --> src/main.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | struct ASTNodeMinus<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/main.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl<T> ASTNodeMinus<T> {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] 83 |     fn new(value: T, parent: Option<Box<dyn ASTNode<T>>>, children: Vec<Box<dyn ASTNode<T>>>) -> ASTNodeMinus<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]    --> src/main.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | struct ASTNodeMul<T> {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] 107 |     value: T,
[INFO] [stdout] 108 |     parent: Option<Box<dyn ASTNode<T>>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTNodeDiv` is never constructed
[INFO] [stdout]    --> src/main.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 | struct ASTNodeDiv<T> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | impl<T> ASTNodeDiv<T> {
[INFO] [stdout]     | --------------------- associated function in this implementation
[INFO] [stdout] 143 |     fn new(value: T, parent: Option<Box<dyn ASTNode<T>>>, children: Vec<Box<dyn ASTNode<T>>>) -> ASTNodeDiv<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `MINUS` and `DIV` are never constructed
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum NodeType {
[INFO] [stdout]   |      -------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     MINUS,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 6 |     MUL,
[INFO] [stdout] 7 |     DIV
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_parent` is never used
[INFO] [stdout]   --> src/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | trait ASTNode<T> {
[INFO] [stdout]    |       ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn get_parent(&self) -> &Option<Box<dyn ASTNode<T>>>;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct ASTNodeLiteral<T> {
[INFO] [stdout]    |        -------------- field in this struct
[INFO] [stdout] 17 |     value: T,
[INFO] [stdout] 18 |     parent: Option<Box<dyn ASTNode<T>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]   --> src/main.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct ASTNodePlus<T> {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 47 |     value: T,
[INFO] [stdout] 48 |     parent: Option<Box<dyn ASTNode<T>>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTNodeMinus` is never constructed
[INFO] [stdout]   --> src/main.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | struct ASTNodeMinus<T> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/main.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl<T> ASTNodeMinus<T> {
[INFO] [stdout]    | ----------------------- associated function in this implementation
[INFO] [stdout] 83 |     fn new(value: T, parent: Option<Box<dyn ASTNode<T>>>, children: Vec<Box<dyn ASTNode<T>>>) -> ASTNodeMinus<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parent` is never read
[INFO] [stdout]    --> src/main.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 106 | struct ASTNodeMul<T> {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] 107 |     value: T,
[INFO] [stdout] 108 |     parent: Option<Box<dyn ASTNode<T>>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ASTNodeDiv` is never constructed
[INFO] [stdout]    --> src/main.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 | struct ASTNodeDiv<T> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | impl<T> ASTNodeDiv<T> {
[INFO] [stdout]     | --------------------- associated function in this implementation
[INFO] [stdout] 143 |     fn new(value: T, parent: Option<Box<dyn ASTNode<T>>>, children: Vec<Box<dyn ASTNode<T>>>) -> ASTNodeDiv<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "8fc4b7a16e286f7ca3b44b6ef63e9e09dd4cf6f12d902f7a5680f59cb9d20df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc4b7a16e286f7ca3b44b6ef63e9e09dd4cf6f12d902f7a5680f59cb9d20df1", kill_on_drop: false }`
[INFO] [stdout] 8fc4b7a16e286f7ca3b44b6ef63e9e09dd4cf6f12d902f7a5680f59cb9d20df1