[INFO] cloning repository https://github.com/mtthew-teng/rust-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mtthew-teng/rust-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtthew-teng%2Frust-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtthew-teng%2Frust-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e1c4b39c2dd506c0814e5bd3f7ff46d64c7c61a
[INFO] checking mtthew-teng/rust-compiler against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtthew-teng%2Frust-compiler" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mtthew-teng/rust-compiler
[INFO] finished tweaking git repo https://github.com/mtthew-teng/rust-compiler
[INFO] tweaked toml for git repo https://github.com/mtthew-teng/rust-compiler written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mtthew-teng/rust-compiler on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mtthew-teng/rust-compiler 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11cb82a2efda894001d99269d817d2c50f66e189c5ab91881a6fdc1320f58f85
[INFO] running `Command { std: "docker" "start" "-a" "11cb82a2efda894001d99269d817d2c50f66e189c5ab91881a6fdc1320f58f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11cb82a2efda894001d99269d817d2c50f66e189c5ab91881a6fdc1320f58f85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11cb82a2efda894001d99269d817d2c50f66e189c5ab91881a6fdc1320f58f85", kill_on_drop: false }`
[INFO] [stdout] 11cb82a2efda894001d99269d817d2c50f66e189c5ab91881a6fdc1320f58f85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46a2c16a225f960f353d26b8595db5bf9c47ff954ba66663d3ad05a6779893d5
[INFO] running `Command { std: "docker" "start" "-a" "46a2c16a225f960f353d26b8595db5bf9c47ff954ba66663d3ad05a6779893d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking lab3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:423:13
[INFO] [stdout]     |
[INFO] [stdout] 403 |             &mut [Tok::Ident(ref mut id), Tok::Assign, ..] => {
[INFO] [stdout]     |             ---------------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 423 |             &mut [Tok::Ident(ref mut id), Tok::Assign, ..] => {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Int` and `Arr` are never constructed
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Tok {
[INFO] [stdout]    |      --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 22 |     Int,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     Arr,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tok` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `l_count` is never read
[INFO] [stdout]    --> src/main.rs:255:5
[INFO] [stdout]     |
[INFO] [stdout] 250 | struct Par {
[INFO] [stdout]     |        --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 255 |     l_count: usize,                  // Label name counter
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:423:13
[INFO] [stdout]     |
[INFO] [stdout] 403 |             &mut [Tok::Ident(ref mut id), Tok::Assign, ..] => {
[INFO] [stdout]     |             ---------------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 423 |             &mut [Tok::Ident(ref mut id), Tok::Assign, ..] => {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Int` and `Arr` are never constructed
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Tok {
[INFO] [stdout]    |      --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 22 |     Int,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     Arr,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tok` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `l_count` is never read
[INFO] [stdout]    --> src/main.rs:255:5
[INFO] [stdout]     |
[INFO] [stdout] 250 | struct Par {
[INFO] [stdout]     |        --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 255 |     l_count: usize,                  // Label name counter
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "46a2c16a225f960f353d26b8595db5bf9c47ff954ba66663d3ad05a6779893d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a2c16a225f960f353d26b8595db5bf9c47ff954ba66663d3ad05a6779893d5", kill_on_drop: false }`
[INFO] [stdout] 46a2c16a225f960f353d26b8595db5bf9c47ff954ba66663d3ad05a6779893d5
