[INFO] cloning repository https://github.com/ArjobanSingh/rust-tree-walk-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ArjobanSingh/rust-tree-walk-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjobanSingh%2Frust-tree-walk-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjobanSingh%2Frust-tree-walk-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3aecad08b661b4f2c8cf842ee238ba3f5276ba0c
[INFO] checking ArjobanSingh/rust-tree-walk-interpreter against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArjobanSingh%2Frust-tree-walk-interpreter" "/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/ArjobanSingh/rust-tree-walk-interpreter
[INFO] finished tweaking git repo https://github.com/ArjobanSingh/rust-tree-walk-interpreter
[INFO] tweaked toml for git repo https://github.com/ArjobanSingh/rust-tree-walk-interpreter written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ArjobanSingh/rust-tree-walk-interpreter on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ArjobanSingh/rust-tree-walk-interpreter 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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a91f7230066f2871c3962c40acc605dc814a33d2f161e16ea9faf777ac4546c8
[INFO] running `Command { std: "docker" "start" "-a" "a91f7230066f2871c3962c40acc605dc814a33d2f161e16ea9faf777ac4546c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a91f7230066f2871c3962c40acc605dc814a33d2f161e16ea9faf777ac4546c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a91f7230066f2871c3962c40acc605dc814a33d2f161e16ea9faf777ac4546c8", kill_on_drop: false }`
[INFO] [stdout] a91f7230066f2871c3962c40acc605dc814a33d2f161e16ea9faf777ac4546c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 888e603fca0b2004d58c131bc9dd8c299fdc137dfdd96866c041f6e379c211d2
[INFO] running `Command { std: "docker" "start" "-a" "888e603fca0b2004d58c131bc9dd8c299fdc137dfdd96866c041f6e379c211d2", kill_on_drop: false }`
[INFO] [stderr]     Checking tree-walk-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0583]: file not found for module `ast_printer`
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod ast_printer;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `ast_printer`, create file "src/ast_printer.rs" or "src/ast_printer/mod.rs"
[INFO] [stdout]   = note: if there is a `mod ast_printer` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0583]: file not found for module `ast_printer`
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod ast_printer;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `ast_printer`, create file "src/ast_printer.rs" or "src/ast_printer/mod.rs"
[INFO] [stdout]   = note: if there is a `mod ast_printer` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/parser.rs:167:27
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn consume(&mut self, token: &TokenType, error_msg: &str) -> Expr<'a> {
[INFO] [stdout]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error_msg`
[INFO] [stdout]    --> src/parser.rs:167:46
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn consume(&mut self, token: &TokenType, error_msg: &str) -> Expr<'a> {
[INFO] [stdout]     |                                              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_error_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tree-walk-interpreter` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/parser.rs:167:27
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn consume(&mut self, token: &TokenType, error_msg: &str) -> Expr<'a> {
[INFO] [stdout]     |                           ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error_msg`
[INFO] [stdout]    --> src/parser.rs:167:46
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn consume(&mut self, token: &TokenType, error_msg: &str) -> Expr<'a> {
[INFO] [stdout]     |                                              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_error_msg`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tree-walk-interpreter` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "888e603fca0b2004d58c131bc9dd8c299fdc137dfdd96866c041f6e379c211d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "888e603fca0b2004d58c131bc9dd8c299fdc137dfdd96866c041f6e379c211d2", kill_on_drop: false }`
[INFO] [stdout] 888e603fca0b2004d58c131bc9dd8c299fdc137dfdd96866c041f6e379c211d2
