[INFO] cloning repository https://github.com/GStechschulte/tiny-tensor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GStechschulte/tiny-tensor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGStechschulte%2Ftiny-tensor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGStechschulte%2Ftiny-tensor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0e7e7544d701489b6f2130fb8add904740e7c34
[INFO] fixing GStechschulte/tiny-tensor against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGStechschulte%2Ftiny-tensor" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/GStechschulte/tiny-tensor
[INFO] finished tweaking git repo https://github.com/GStechschulte/tiny-tensor
[INFO] tweaked toml for git repo https://github.com/GStechschulte/tiny-tensor written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/GStechschulte/tiny-tensor on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/GStechschulte/tiny-tensor 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 88d147462785fe9f682e2cc5cb8b342f25cec644ad4983f8d8ff0a46df7e5d4c
[INFO] running `Command { std: "docker" "start" "88d147462785fe9f682e2cc5cb8b342f25cec644ad4983f8d8ff0a46df7e5d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "88d147462785fe9f682e2cc5cb8b342f25cec644ad4983f8d8ff0a46df7e5d4c" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88d147462785fe9f682e2cc5cb8b342f25cec644ad4983f8d8ff0a46df7e5d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "88d147462785fe9f682e2cc5cb8b342f25cec644ad4983f8d8ff0a46df7e5d4c" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
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[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]     Checking foldhash v0.2.0
[INFO] [stderr]     Checking cpp v0.5.10
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling ureq v2.12.1
[INFO] [stderr]     Checking lapack-sys v0.14.0
[INFO] [stderr]     Checking expr v0.1.0 (/opt/rustwide/workdir/src/expr)
[INFO] [stdout] warning: unused imports: `Div`, `Neg`, `Sub`, and `fmt::Display`
[INFO] [stdout]  --> src/expr/src/node.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fmt::Display,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 7 |     ops::{Add, Div, Mul, Neg, Sub},
[INFO] [stdout]   |                ^^^       ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Mul`
[INFO] [stdout]  --> src/expr/src/node.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ops::{Add, Div, Mul, Neg, Sub},
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/expr/src/node.rs:168:13
[INFO] [stdout]     |
[INFO] [stdout] 168 |         let expr = Expr::add(Expr::constant(2.0), Expr::constant(4.0));
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]    --> src/expr/src/node.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let expr = a + b;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ExprId` is more private than the item `node::Expr::id`
[INFO] [stdout]    --> src/expr/src/node.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn id(&self) -> ExprId {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ method `node::Expr::id` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ExprId` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/expr/src/node.rs:11:1
[INFO] [stdout]     |
[INFO] [stdout]  11 | struct ExprId(usize);
[INFO] [stdout]     | ^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/expr/src/node.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Expr {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 39 |     node: Arc<ExprNode>,
[INFO] [stdout] 40 |     id: ExprId,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, 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: function `add` is never used
[INFO] [stdout]   --> src/expr/src/node.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn add(left: u64, right: u64) -> u64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `id` is never used
[INFO] [stdout]    --> src/expr/src/node.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 102 | impl Expr {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 103 |     pub fn id(&self) -> ExprId {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tensor v0.1.0 (/opt/rustwide/workdir/src/tensor)
[INFO] [stdout] warning: unused imports: `Div`, `Mul`, `Neg`, `Sub`, and `fmt::Display`
[INFO] [stdout]  --> src/expr/src/node.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fmt::Display,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 7 |     ops::{Add, Div, Mul, Neg, Sub},
[INFO] [stdout]   |                ^^^  ^^^  ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `ExprId` is more private than the item `Expr::id`
[INFO] [stdout]    --> src/expr/src/node.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     pub fn id(&self) -> ExprId {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ method `Expr::id` is reachable at visibility `pub(crate)`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `ExprId` is only usable at visibility `pub(self)`
[INFO] [stdout]    --> src/expr/src/node.rs:11:1
[INFO] [stdout]     |
[INFO] [stdout]  11 | struct ExprId(usize);
[INFO] [stdout]     | ^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExprId` is never constructed
[INFO] [stdout]   --> src/expr/src/node.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct ExprId(usize);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ExprNode` is never used
[INFO] [stdout]   --> src/expr/src/node.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum ExprNode {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Expr` is never constructed
[INFO] [stdout]   --> src/expr/src/node.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Expr {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `parameter`, `constant`, `add`, and `mul` are never used
[INFO] [stdout]   --> src/expr/src/node.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Expr {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 44 |     fn new(node: ExprNode) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn parameter(index: u32, name: String) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn constant(value: f64) -> Self {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn add(lhs: Expr, rhs: Expr) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn mul(lhs: Expr, rhs: Expr) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/expr/src/node.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn add(left: u64, right: u64) -> u64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ExprVisitor` is never used
[INFO] [stdout]   --> src/expr/src/node.rs:95:11
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub trait ExprVisitor<T> {
[INFO] [stdout]    |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `id` and `walk` are never used
[INFO] [stdout]    --> src/expr/src/node.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 102 | impl Expr {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 103 |     pub fn id(&self) -> ExprId {
[INFO] [stdout]     |            ^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn walk<T>(&self, visitor: &mut dyn ExprVisitor<T>) -> T {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tracer` is never constructed
[INFO] [stdout]    --> src/expr/src/node.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub struct Tracer {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `visit` are never used
[INFO] [stdout]    --> src/expr/src/node.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 150 | impl Tracer {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 151 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     pub fn visit(&mut self, expr: &Expr) -> f64 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling xla v0.1.0 (/opt/rustwide/workdir/src/xla)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "88d147462785fe9f682e2cc5cb8b342f25cec644ad4983f8d8ff0a46df7e5d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88d147462785fe9f682e2cc5cb8b342f25cec644ad4983f8d8ff0a46df7e5d4c", kill_on_drop: false }`
[INFO] [stdout] 88d147462785fe9f682e2cc5cb8b342f25cec644ad4983f8d8ff0a46df7e5d4c
