[INFO] updating cached repository https://github.com/Julian-Wollersberger/compiler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 21bbb2d486de607627cee780d73840818eec9827
[INFO] checking Julian-Wollersberger/compiler against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJulian-Wollersberger%2Fcompiler" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Julian-Wollersberger/compiler on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Julian-Wollersberger/compiler
[INFO] finished tweaking git repo https://github.com/Julian-Wollersberger/compiler
[INFO] tweaked toml for git repo https://github.com/Julian-Wollersberger/compiler written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Julian-Wollersberger/compiler already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4e2cef90586c1ab762cb2fce0b0f6df438fdb4e77f4d67dd12b3b8f42ca21fcd
[INFO] running `"docker" "start" "-a" "4e2cef90586c1ab762cb2fce0b0f6df438fdb4e77f4d67dd12b3b8f42ca21fcd"`
[INFO] [stderr]     Checking compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Debug`, `Error`, `Formatter`
[INFO] [stderr]  --> src/lexer.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Debug`, `Error`, `Formatter`
[INFO] [stderr]  --> src/lexer.rs:1:16
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::{Debug, Formatter, Error};
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `processed_len`
[INFO] [stderr]   --> src/lexer/cursor.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn processed_len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `nth`
[INFO] [stderr]   --> src/lexer/cursor.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn nth(&self, n: u8) -> Option<char> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `eof`
[INFO] [stderr]   --> src/syntax_representation.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn eof() -> Token {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ErrorNode`
[INFO] [stderr]    --> src/syntax_representation.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     ErrorNode,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `processed_len`
[INFO] [stderr]   --> src/lexer/cursor.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn processed_len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `eof`
[INFO] [stderr]   --> src/syntax_representation.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn eof() -> Token {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ErrorNode`
[INFO] [stderr]    --> src/syntax_representation.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     ErrorNode,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "4e2cef90586c1ab762cb2fce0b0f6df438fdb4e77f4d67dd12b3b8f42ca21fcd"`
[INFO] running `"docker" "rm" "-f" "4e2cef90586c1ab762cb2fce0b0f6df438fdb4e77f4d67dd12b3b8f42ca21fcd"`
[INFO] [stdout] 4e2cef90586c1ab762cb2fce0b0f6df438fdb4e77f4d67dd12b3b8f42ca21fcd