[INFO] cloning repository https://github.com/shantanugoel/microgpt-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shantanugoel/microgpt-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanugoel%2Fmicrogpt-rs", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd0ddb4cc34a5532d160a10ba3f39847fbb1e86a
[INFO] checking shantanugoel/microgpt-rs against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanugoel%2Fmicrogpt-rs" "/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/shantanugoel/microgpt-rs
[INFO] finished tweaking git repo https://github.com/shantanugoel/microgpt-rs
[INFO] tweaked toml for git repo https://github.com/shantanugoel/microgpt-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shantanugoel/microgpt-rs on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shantanugoel/microgpt-rs 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 68635b95070712462765884c07712fc2554cb11b0ed36d2c43a78f5ed594c3e2
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[INFO] running `Command { std: "docker" "inspect" "68635b95070712462765884c07712fc2554cb11b0ed36d2c43a78f5ed594c3e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68635b95070712462765884c07712fc2554cb11b0ed36d2c43a78f5ed594c3e2", kill_on_drop: false }`
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[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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63bbb86a58d0d96a5c5776cf09ec50163823a32d9f30823110415783fbf0e551
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[INFO] [stderr]    Compiling quote v1.0.44
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[INFO] [stdout] warning: unused variable: `BOS`
[INFO] [stdout]    --> src/main.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let BOS = uchars.len();
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_BOS`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `grad`, `children`, and `local_grads` are never read
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Value {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 11 |     data: f64,
[INFO] [stdout] 12 |     grad: f64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     children: Vec<ValueRef>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 14 |     local_grads: Vec<f64>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `borrow_mut`, `log`, `exp`, `relu`, and `backward` are never used
[INFO] [stdout]   --> src/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl ValueRef {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn borrow_mut(&self) -> std::cell::RefMut<Value> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn log(&self) -> ValueRef {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn exp(&self) -> ValueRef {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn relu(&self) -> ValueRef {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     fn backward(&self) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn borrow(&self) -> std::cell::Ref<Value> {
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn borrow(&self) -> std::cell::Ref<'_, Value> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn borrow_mut(&self) -> std::cell::RefMut<Value> {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn borrow_mut(&self) -> std::cell::RefMut<'_, Value> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `BOS` should have a snake case name
[INFO] [stdout]    --> src/main.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let BOS = uchars.len();
[INFO] [stdout]     |         ^^^ help: convert the identifier to snake case: `bos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `BOS`
[INFO] [stdout]    --> src/main.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let BOS = uchars.len();
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_BOS`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `grad`, `children`, and `local_grads` are never read
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Value {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 11 |     data: f64,
[INFO] [stdout] 12 |     grad: f64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     children: Vec<ValueRef>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 14 |     local_grads: Vec<f64>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `borrow_mut`, `log`, `exp`, `relu`, and `backward` are never used
[INFO] [stdout]   --> src/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl ValueRef {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn borrow_mut(&self) -> std::cell::RefMut<Value> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn log(&self) -> ValueRef {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     fn exp(&self) -> ValueRef {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn relu(&self) -> ValueRef {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 72 |     fn backward(&self) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn borrow(&self) -> std::cell::Ref<Value> {
[INFO] [stdout]    |               ^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |               |
[INFO] [stdout]    |               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn borrow(&self) -> std::cell::Ref<'_, Value> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn borrow_mut(&self) -> std::cell::RefMut<Value> {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn borrow_mut(&self) -> std::cell::RefMut<'_, Value> {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `BOS` should have a snake case name
[INFO] [stdout]    --> src/main.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let BOS = uchars.len();
[INFO] [stdout]     |         ^^^ help: convert the identifier to snake case: `bos`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "63bbb86a58d0d96a5c5776cf09ec50163823a32d9f30823110415783fbf0e551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63bbb86a58d0d96a5c5776cf09ec50163823a32d9f30823110415783fbf0e551", kill_on_drop: false }`
[INFO] [stdout] 63bbb86a58d0d96a5c5776cf09ec50163823a32d9f30823110415783fbf0e551
