[INFO] cloning repository https://github.com/davidpdrsn/oops-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidpdrsn/oops-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidpdrsn%2Foops-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidpdrsn%2Foops-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ddd382d00ae7fcc3b2bcb4de1054265b9fcd0f5
[INFO] checking davidpdrsn/oops-lang against 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa for pr-159356
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidpdrsn%2Foops-lang" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/davidpdrsn/oops-lang
[INFO] finished tweaking git repo https://github.com/davidpdrsn/oops-lang
[INFO] tweaked toml for git repo https://github.com/davidpdrsn/oops-lang written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/davidpdrsn/oops-lang on toolchain 6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/davidpdrsn/oops-lang 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" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.15.40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:c36f533e8924a726b63f9d01e781fa8c8c28c96d1d595403829afb31452ee0f5" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 88c8a3ccea2fdc3f16098944a9c616f2855057968b8136389d080f2e299abc1a
[INFO] running `Command { std: "docker" "start" "88c8a3ccea2fdc3f16098944a9c616f2855057968b8136389d080f2e299abc1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88c8a3ccea2fdc3f16098944a9c616f2855057968b8136389d080f2e299abc1a", 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" "88c8a3ccea2fdc3f16098944a9c616f2855057968b8136389d080f2e299abc1a" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88c8a3ccea2fdc3f16098944a9c616f2855057968b8136389d080f2e299abc1a", 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=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "88c8a3ccea2fdc3f16098944a9c616f2855057968b8136389d080f2e299abc1a" "/opt/rustwide/cargo-home/bin/cargo" "+6e4b95ed0735c3bbfb308e6f158f479b4d14f1aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking regex-syntax v0.6.10
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking oops v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `assert_error`
[INFO] [stdout]    --> src/error.rs:170:14
[INFO] [stdout]     |
[INFO] [stdout] 170 | macro_rules! assert_error {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]  --> src/interpret/mod.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::prep::{self, Class, Field};
[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: `hash_map::Keys`
[INFO] [stdout]  --> src/interpret/mod.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 |     collections::{hash_map::Keys, HashMap},
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClassVTable`
[INFO] [stdout]  --> src/prep/mod.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |     interpret::{ClassVTable, VTable},
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `assert_error`
[INFO] [stdout]    --> src/error.rs:170:14
[INFO] [stdout]     |
[INFO] [stdout] 170 | macro_rules! assert_error {
[INFO] [stdout]     |              ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]  --> src/interpret/mod.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::prep::{self, Class, Field};
[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: `hash_map::Keys`
[INFO] [stdout]  --> src/interpret/mod.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 |     collections::{hash_map::Keys, HashMap},
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClassVTable`
[INFO] [stdout]  --> src/prep/mod.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 |     interpret::{ClassVTable, VTable},
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/interpret/mod.rs:78:34
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn visit_let_ivar(&mut self, node: &'a LetIVar<'a>) -> Result<'a, ()> {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/interpret/mod.rs:78:34
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn visit_let_ivar(&mut self, node: &'a LetIVar<'a>) -> Result<'a, ()> {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/error.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     ClassNotDefined {
[INFO] [stdout]    |     --------------- field in this variant
[INFO] [stdout] 15 |         class: &'a str,
[INFO] [stdout] 16 |         span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` 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: variants `IVarAccessedWithoutSelf` and `IVarAccessedOnNonInstanceValue` are never constructed
[INFO] [stdout]   --> src/error.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub enum Error<'a> {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 43 |     IVarAccessedWithoutSelf(Span),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 44 |     IVarAccessedOnNonInstanceValue(Span),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse_specific_class_name` is never used
[INFO] [stdout]   --> src/parse/mod.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<'a> ParseStream<'a> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn parse_specific_class_name(&mut self, name: &str) -> Result<'a, ClassName<'a>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/prep/mod.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 261 | pub struct Method<'a> {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 262 |     pub name: &'a Ident<'a>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Method` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]  --> src/lex/mod.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn lex<'a>(program: &'a str) -> Result<Vec<Token<'a>>> {
[INFO] [stdout]   |                          --         ^^^^^^^^^^^^^^^^^--^^^
[INFO] [stdout]   |                          |          |                |
[INFO] [stdout]   |                          |          |                the same lifetime is named here
[INFO] [stdout]   |                          |          the same lifetime is hidden here
[INFO] [stdout]   |                          the lifetime is named 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: consistently use `'a`
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn lex<'a>(program: &'a str) -> Result<'a, Vec<Token<'a>>> {
[INFO] [stdout]   |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]  --> src/parse/mod.rs:8:49
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn parse<'a>(tokens: &'a Vec<Token<'a>>) -> Result<Vec<Stmt<'a>>> {
[INFO] [stdout]   |                           --           --       ^^^^^^^^^^^^^^^^--^^^
[INFO] [stdout]   |                           |            |        |               |
[INFO] [stdout]   |                           |            |        |               the same lifetime is named here
[INFO] [stdout]   |                           |            |        the same lifetime is hidden here
[INFO] [stdout]   |                           |            the lifetime is named here
[INFO] [stdout]   |                           the lifetime is named here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn parse<'a>(tokens: &'a Vec<Token<'a>>) -> Result<'a, Vec<Stmt<'a>>> {
[INFO] [stdout]   |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `span` is never read
[INFO] [stdout]   --> src/error.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     ClassNotDefined {
[INFO] [stdout]    |     --------------- field in this variant
[INFO] [stdout] 15 |         class: &'a str,
[INFO] [stdout] 16 |         span: Span,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` 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: variants `IVarAccessedWithoutSelf` and `IVarAccessedOnNonInstanceValue` are never constructed
[INFO] [stdout]   --> src/error.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub enum Error<'a> {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 43 |     IVarAccessedWithoutSelf(Span),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 44 |     IVarAccessedOnNonInstanceValue(Span),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse_specific_class_name` is never used
[INFO] [stdout]   --> src/parse/mod.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl<'a> ParseStream<'a> {
[INFO] [stdout]    | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn parse_specific_class_name(&mut self, name: &str) -> Result<'a, ClassName<'a>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/prep/mod.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 261 | pub struct Method<'a> {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 262 |     pub name: &'a Ident<'a>,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Method` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]  --> src/lex/mod.rs:9:37
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn lex<'a>(program: &'a str) -> Result<Vec<Token<'a>>> {
[INFO] [stdout]   |                          --         ^^^^^^^^^^^^^^^^^--^^^
[INFO] [stdout]   |                          |          |                |
[INFO] [stdout]   |                          |          |                the same lifetime is named here
[INFO] [stdout]   |                          |          the same lifetime is hidden here
[INFO] [stdout]   |                          the lifetime is named 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: consistently use `'a`
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn lex<'a>(program: &'a str) -> Result<'a, Vec<Token<'a>>> {
[INFO] [stdout]   |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]  --> src/parse/mod.rs:8:49
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn parse<'a>(tokens: &'a Vec<Token<'a>>) -> Result<Vec<Stmt<'a>>> {
[INFO] [stdout]   |                           --           --       ^^^^^^^^^^^^^^^^--^^^
[INFO] [stdout]   |                           |            |        |               |
[INFO] [stdout]   |                           |            |        |               the same lifetime is named here
[INFO] [stdout]   |                           |            |        the same lifetime is hidden here
[INFO] [stdout]   |                           |            the lifetime is named here
[INFO] [stdout]   |                           the lifetime is named here
[INFO] [stdout]   |
[INFO] [stdout]   = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn parse<'a>(tokens: &'a Vec<Token<'a>>) -> Result<'a, Vec<Stmt<'a>>> {
[INFO] [stdout]   |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.06s
[INFO] running `Command { std: "docker" "inspect" "88c8a3ccea2fdc3f16098944a9c616f2855057968b8136389d080f2e299abc1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c8a3ccea2fdc3f16098944a9c616f2855057968b8136389d080f2e299abc1a", kill_on_drop: false }`
[INFO] [stdout] 88c8a3ccea2fdc3f16098944a9c616f2855057968b8136389d080f2e299abc1a
