[INFO] fetching crate sbash 0.0.0...
[INFO] building sbash-0.0.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate sbash 0.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sbash 0.0.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sbash 0.0.0
[INFO] finished tweaking crates.io crate sbash 0.0.0
[INFO] tweaked toml for crates.io crate sbash 0.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate sbash 0.0.0 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded insta v1.28.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc4c45d7847b14e7f8fa470b15dbc4b1c55087b27cd038d8164f1f45aa8ca734
[INFO] running `Command { std: "docker" "start" "-a" "dc4c45d7847b14e7f8fa470b15dbc4b1c55087b27cd038d8164f1f45aa8ca734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc4c45d7847b14e7f8fa470b15dbc4b1c55087b27cd038d8164f1f45aa8ca734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc4c45d7847b14e7f8fa470b15dbc4b1c55087b27cd038d8164f1f45aa8ca734", kill_on_drop: false }`
[INFO] [stdout] dc4c45d7847b14e7f8fa470b15dbc4b1c55087b27cd038d8164f1f45aa8ca734
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d69b0b8a1658541bb7155f4f2c4efe7dc60697e9e4aa7e04dee5bd1ec3f848fd
[INFO] running `Command { std: "docker" "start" "-a" "d69b0b8a1658541bb7155f4f2c4efe7dc60697e9e4aa7e04dee5bd1ec3f848fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling sbash v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ast::parser::ir::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ast::parser::ir::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `row` and `col` are never read
[INFO] [stdout]  --> src/ast/errors.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |     UnclosedQuote { row: usize, col: usize },
[INFO] [stdout]   |     -------------   ^^^         ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LexingError` 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: fields `row` and `col` are never read
[INFO] [stdout]  --> src/ast/errors.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |     UnclosedBlock { row: usize, col: usize },
[INFO] [stdout]   |     -------------   ^^^         ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LexingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InvalidVar` is never constructed
[INFO] [stdout]  --> src/ast/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum LexingError {
[INFO] [stdout]   |          ----------- variant in this enum
[INFO] [stdout] 3 |     InvalidVar { row: usize, col: usize },
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LexingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_symbols` is never used
[INFO] [stdout]   --> src/ast/tokens.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn print_symbols(symbols: &Symbols) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `symbols_to_string` is never used
[INFO] [stdout]   --> src/ast/tokens.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn symbols_to_string(symbols: &Symbols) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "d69b0b8a1658541bb7155f4f2c4efe7dc60697e9e4aa7e04dee5bd1ec3f848fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d69b0b8a1658541bb7155f4f2c4efe7dc60697e9e4aa7e04dee5bd1ec3f848fd", kill_on_drop: false }`
[INFO] [stdout] d69b0b8a1658541bb7155f4f2c4efe7dc60697e9e4aa7e04dee5bd1ec3f848fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 384b3c5218c1a886b234b14b2a9b2d038f4cbce9c7a1372b6c3723ec82d055c9
[INFO] running `Command { std: "docker" "start" "-a" "384b3c5218c1a886b234b14b2a9b2d038f4cbce9c7a1372b6c3723ec82d055c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling similar v2.2.1
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling console v0.15.5
[INFO] [stderr]    Compiling insta v1.28.0
[INFO] [stderr]    Compiling sbash v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ast::parser::ir::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ast::parser::ir::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `row` and `col` are never read
[INFO] [stdout]  --> src/ast/errors.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |     UnclosedQuote { row: usize, col: usize },
[INFO] [stdout]   |     -------------   ^^^         ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LexingError` 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: fields `row` and `col` are never read
[INFO] [stdout]  --> src/ast/errors.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |     UnclosedBlock { row: usize, col: usize },
[INFO] [stdout]   |     -------------   ^^^         ^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LexingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InvalidVar` is never constructed
[INFO] [stdout]  --> src/ast/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum LexingError {
[INFO] [stdout]   |          ----------- variant in this enum
[INFO] [stdout] 3 |     InvalidVar { row: usize, col: usize },
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LexingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_symbols` is never used
[INFO] [stdout]   --> src/ast/tokens.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn print_symbols(symbols: &Symbols) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "384b3c5218c1a886b234b14b2a9b2d038f4cbce9c7a1372b6c3723ec82d055c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "384b3c5218c1a886b234b14b2a9b2d038f4cbce9c7a1372b6c3723ec82d055c9", kill_on_drop: false }`
[INFO] [stdout] 384b3c5218c1a886b234b14b2a9b2d038f4cbce9c7a1372b6c3723ec82d055c9