[INFO] cloning repository https://github.com/u66u/flock
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/u66u/flock" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu66u%2Fflock", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu66u%2Fflock'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3315dc75139a7309271146188d4b063ed5f31224
[INFO] checking u66u/flock against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu66u%2Fflock" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/u66u/flock
[INFO] finished tweaking git repo https://github.com/u66u/flock
[INFO] tweaked toml for git repo https://github.com/u66u/flock written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/u66u/flock on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/u66u/flock 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded logos-derive v0.14.0
[INFO] [stderr]   Downloaded ariadne v0.4.1
[INFO] [stderr]   Downloaded logos-codegen v0.14.0
[INFO] [stderr]   Downloaded logos v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8db12f0afd4247da762282e18e9703b7ece78b8b11b9eca1f86ef5b0d2ccffb0
[INFO] running `Command { std: "docker" "start" "-a" "8db12f0afd4247da762282e18e9703b7ece78b8b11b9eca1f86ef5b0d2ccffb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8db12f0afd4247da762282e18e9703b7ece78b8b11b9eca1f86ef5b0d2ccffb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8db12f0afd4247da762282e18e9703b7ece78b8b11b9eca1f86ef5b0d2ccffb0", kill_on_drop: false }`
[INFO] [stdout] 8db12f0afd4247da762282e18e9703b7ece78b8b11b9eca1f86ef5b0d2ccffb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a18ce42df746c802b075c37a7ccf51a9b106819a878d5e7c4244e05bd00bcae8
[INFO] running `Command { std: "docker" "start" "-a" "a18ce42df746c802b075c37a7ccf51a9b106819a878d5e7c4244e05bd00bcae8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.97
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking zerocopy v0.7.34
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling chumsky v1.0.0-alpha.7
[INFO] [stderr]     Checking allocator-api2 v0.2.18
[INFO] [stderr]     Checking unicode-width v0.1.12
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking ariadne v0.4.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.61
[INFO] [stderr]    Compiling logos-codegen v0.14.0
[INFO] [stderr]    Compiling logos-derive v0.14.0
[INFO] [stderr]     Checking logos v0.14.0
[INFO] [stderr]     Checking flock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::ast::*`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::ast::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::*`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::ast::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Mult` is never constructed
[INFO] [stdout]  --> src/ast.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Type {
[INFO] [stdout]   |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 5 |     Mult(Box<Type>, Box<Type>),
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/ast.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Expr {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Commands` is never used
[INFO] [stdout]   --> src/ast.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Commands {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_string_with_precedence` and `to_string` are never used
[INFO] [stdout]   --> src/ast.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl Type {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 55 |     fn to_string_with_precedence(&self, outer_precedence: i32) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `to_string_with_precedence`, `to_string`, and `subst` are never used
[INFO] [stdout]    --> src/ast.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl Expr {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 105 |     fn to_string_with_precedence(&self, outer_precedence: i32) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 227 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 231 |     pub fn subst(substitutions: &Vec<(String, Expr)>, expr: &Expr) -> Expr {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EOF` is never constructed
[INFO] [stdout]    --> src/lexer.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout]   5 | pub enum Token {
[INFO] [stdout]     |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 125 |     EOF,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `parse_ty_list`, `parse_ty_times`, `parse_basic_binary_expr`, and `parse_binary_expr` are never used
[INFO] [stdout]    --> src/parser.rs:41:12
[INFO] [stdout]     |
[INFO] [stdout]   9 | / impl<I> Parser<I>
[INFO] [stdout]  10 | | where
[INFO] [stdout]  11 | |     I: Iterator<Item = Token>,
[INFO] [stdout]     | |______________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  41 |       pub fn parse_ty_list(&mut self) -> Option<Type> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  53 |       pub fn parse_ty_times(&mut self) -> Option<Type> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  93 |       pub fn parse_basic_binary_expr(&mut self) -> Option<Expr> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |       pub fn parse_binary_expr(&mut self) -> Option<Expr> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Bool(bool),
[INFO] [stdout]    |     ---- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Bool(bool),
[INFO] [stdout] 14 +     Bool(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/ast.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Expr {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 12 |     Var(String),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     Int(i64),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 14 |     Bool(bool),
[INFO] [stdout] 15 |     Mult(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     Divide(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     Mod(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 18 |     Plus(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 19 |     Minus(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Equal(Box<Expr>, Box<Expr>),
[INFO] [stdout] 21 |     Less(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 22 |     If(Box<Expr>, Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^
[INFO] [stdout] 23 |     Func(String, Box<Type>, Box<Expr>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     Apply(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 25 |     Pair(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     First(Box<Expr>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 27 |     Second(Box<Expr>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 28 |     Recursion(String, Box<Type>, Box<Expr>),
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 29 |     None(Type),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 30 |     Cons(Box<Expr>, Box<Expr>),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     Match(Box<Expr>, Box<Type>, Box<Expr>, String, String, Box<Expr>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Commands` is never used
[INFO] [stdout]   --> src/ast.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Commands {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `to_string_with_precedence` and `to_string` are never used
[INFO] [stdout]   --> src/ast.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl Type {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 55 |     fn to_string_with_precedence(&self, outer_precedence: i32) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `to_string_with_precedence`, `to_string`, and `subst` are never used
[INFO] [stdout]    --> src/ast.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | impl Expr {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 105 |     fn to_string_with_precedence(&self, outer_precedence: i32) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 227 |     pub fn to_string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 231 |     pub fn subst(substitutions: &Vec<(String, Expr)>, expr: &Expr) -> Expr {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EOF` is never constructed
[INFO] [stdout]    --> src/lexer.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout]   5 | pub enum Token {
[INFO] [stdout]     |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 125 |     EOF,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `parse_basic_binary_expr` and `parse_binary_expr` are never used
[INFO] [stdout]    --> src/parser.rs:93:12
[INFO] [stdout]     |
[INFO] [stdout]   9 | / impl<I> Parser<I>
[INFO] [stdout]  10 | | where
[INFO] [stdout]  11 | |     I: Iterator<Item = Token>,
[INFO] [stdout]     | |______________________________- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  93 |       pub fn parse_basic_binary_expr(&mut self) -> Option<Expr> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |       pub fn parse_binary_expr(&mut self) -> Option<Expr> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.68s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: chumsky v1.0.0-alpha.7
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "a18ce42df746c802b075c37a7ccf51a9b106819a878d5e7c4244e05bd00bcae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a18ce42df746c802b075c37a7ccf51a9b106819a878d5e7c4244e05bd00bcae8", kill_on_drop: false }`
[INFO] [stdout] a18ce42df746c802b075c37a7ccf51a9b106819a878d5e7c4244e05bd00bcae8
