[INFO] cloning repository https://github.com/NLincoln/u-cc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NLincoln/u-cc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNLincoln%2Fu-cc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNLincoln%2Fu-cc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39578056809cba704098974f8488f50d5d2d3ab0
[INFO] testing NLincoln/u-cc against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNLincoln%2Fu-cc" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NLincoln/u-cc on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NLincoln/u-cc
[INFO] finished tweaking git repo https://github.com/NLincoln/u-cc
[INFO] tweaked toml for git repo https://github.com/NLincoln/u-cc written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/NLincoln/u-cc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ad74e892113479fb57f790b2f2d9f14dbcb5e520d1631f06e9deee9d6b1a502
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6ad74e892113479fb57f790b2f2d9f14dbcb5e520d1631f06e9deee9d6b1a502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ad74e892113479fb57f790b2f2d9f14dbcb5e520d1631f06e9deee9d6b1a502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad74e892113479fb57f790b2f2d9f14dbcb5e520d1631f06e9deee9d6b1a502", kill_on_drop: false }`
[INFO] [stdout] 6ad74e892113479fb57f790b2f2d9f14dbcb5e520d1631f06e9deee9d6b1a502
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f87e2afd1ccc39811b0e41fd71944cc8356a4f86dbba607d927dd478d260b9d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0f87e2afd1ccc39811b0e41fd71944cc8356a4f86dbba607d927dd478d260b9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling opaque-debug v0.2.2
[INFO] [stderr]    Compiling winapi v0.3.6
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling either v1.5.1
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]    Compiling block-padding v0.1.3
[INFO] [stderr]    Compiling colored v1.7.0
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling block-buffer v0.7.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling shared_child v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling os_pipe v0.8.1
[INFO] [stderr]    Compiling duct v0.12.0
[INFO] [stderr]    Compiling u-cc-test v0.1.0 (/opt/rustwide/workdir/u-cc-test)
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> u-cc-test/src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{env, fs, io};
[INFO] [stdout]   |           ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling docopt v1.0.2
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stderr]    Compiling u-cc v0.1.0 (/opt/rustwide/workdir/u-cc)
[INFO] [stdout] warning: unused import: `crate::asm::Address::Indirect`
[INFO] [stdout]  --> u-cc/src/asm.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::asm::Address::Indirect;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::usize`
[INFO] [stdout]   --> u-cc/src/ast.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         use std::usize;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::asm::Address::Indirect`
[INFO] [stdout]  --> u-cc/src/compiler.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::asm::Address::Indirect;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::Expr::FunctionCall`
[INFO] [stdout]  --> u-cc/src/compiler.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ast::Expr::FunctionCall;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:4907:5
[INFO] [stdout]      |
[INFO] [stdout] 4907 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5008:5
[INFO] [stdout]      |
[INFO] [stdout] 5008 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5019:5
[INFO] [stdout]      |
[INFO] [stdout] 5019 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5164:5
[INFO] [stdout]      |
[INFO] [stdout] 5164 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5190:5
[INFO] [stdout]      |
[INFO] [stdout] 5190 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5214:5
[INFO] [stdout]      |
[INFO] [stdout] 5214 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5238:5
[INFO] [stdout]      |
[INFO] [stdout] 5238 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5262:5
[INFO] [stdout]      |
[INFO] [stdout] 5262 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5286:5
[INFO] [stdout]      |
[INFO] [stdout] 5286 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5310:5
[INFO] [stdout]      |
[INFO] [stdout] 5310 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5347:5
[INFO] [stdout]      |
[INFO] [stdout] 5347 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5410:5
[INFO] [stdout]      |
[INFO] [stdout] 5410 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5447:5
[INFO] [stdout]      |
[INFO] [stdout] 5447 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5484:5
[INFO] [stdout]      |
[INFO] [stdout] 5484 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5534:5
[INFO] [stdout]      |
[INFO] [stdout] 5534 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5559:5
[INFO] [stdout]      |
[INFO] [stdout] 5559 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5680:5
[INFO] [stdout]      |
[INFO] [stdout] 5680 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5776:5
[INFO] [stdout]      |
[INFO] [stdout] 5776 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5935:5
[INFO] [stdout]      |
[INFO] [stdout] 5935 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5993:5
[INFO] [stdout]      |
[INFO] [stdout] 5993 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:6074:5
[INFO] [stdout]      |
[INFO] [stdout] 6074 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io`
[INFO] [stdout]   --> u-cc/src/main.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::{fs, io};
[INFO] [stdout]    |               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ebp`
[INFO] [stdout]   --> u-cc/src/asm.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Ebp,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Esp`
[INFO] [stdout]   --> u-cc/src/asm.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Esp,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `no_size`
[INFO] [stdout]    --> u-cc/src/asm.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn no_size(mut self) -> IndirectAddress {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lookup_symbol`
[INFO] [stdout]   --> u-cc/src/compiler/symbol_table.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn lookup_symbol(&self, name: &str) -> Option<&Symbol<'src>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "0f87e2afd1ccc39811b0e41fd71944cc8356a4f86dbba607d927dd478d260b9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f87e2afd1ccc39811b0e41fd71944cc8356a4f86dbba607d927dd478d260b9d", kill_on_drop: false }`
[INFO] [stdout] 0f87e2afd1ccc39811b0e41fd71944cc8356a4f86dbba607d927dd478d260b9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3ba36f04a6c9bd1ce4bfc39c9ee4e6bd4b34f31164330b6201fc810d93cf495
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c3ba36f04a6c9bd1ce4bfc39c9ee4e6bd4b34f31164330b6201fc810d93cf495", kill_on_drop: false }`
[INFO] [stderr]    Compiling u-cc-test v0.1.0 (/opt/rustwide/workdir/u-cc-test)
[INFO] [stderr]    Compiling u-cc v0.1.0 (/opt/rustwide/workdir/u-cc)
[INFO] [stdout] warning: unused import: `env`
[INFO] [stdout]  --> u-cc-test/src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{env, fs, io};
[INFO] [stdout]   |           ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::asm::Address::Indirect`
[INFO] [stdout]  --> u-cc/src/asm.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::asm::Address::Indirect;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::usize`
[INFO] [stdout]   --> u-cc/src/ast.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         use std::usize;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::asm::Address::Indirect`
[INFO] [stdout]  --> u-cc/src/compiler.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::asm::Address::Indirect;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ast::Expr::FunctionCall`
[INFO] [stdout]  --> u-cc/src/compiler.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::ast::Expr::FunctionCall;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:4907:5
[INFO] [stdout]      |
[INFO] [stdout] 4907 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5008:5
[INFO] [stdout]      |
[INFO] [stdout] 5008 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5019:5
[INFO] [stdout]      |
[INFO] [stdout] 5019 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5164:5
[INFO] [stdout]      |
[INFO] [stdout] 5164 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5190:5
[INFO] [stdout]      |
[INFO] [stdout] 5190 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5214:5
[INFO] [stdout]      |
[INFO] [stdout] 5214 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5238:5
[INFO] [stdout]      |
[INFO] [stdout] 5238 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5262:5
[INFO] [stdout]      |
[INFO] [stdout] 5262 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5286:5
[INFO] [stdout]      |
[INFO] [stdout] 5286 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5310:5
[INFO] [stdout]      |
[INFO] [stdout] 5310 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5347:5
[INFO] [stdout]      |
[INFO] [stdout] 5347 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5410:5
[INFO] [stdout]      |
[INFO] [stdout] 5410 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5447:5
[INFO] [stdout]      |
[INFO] [stdout] 5447 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5484:5
[INFO] [stdout]      |
[INFO] [stdout] 5484 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5534:5
[INFO] [stdout]      |
[INFO] [stdout] 5534 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5559:5
[INFO] [stdout]      |
[INFO] [stdout] 5559 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5680:5
[INFO] [stdout]      |
[INFO] [stdout] 5680 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5776:5
[INFO] [stdout]      |
[INFO] [stdout] 5776 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5935:5
[INFO] [stdout]      |
[INFO] [stdout] 5935 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5993:5
[INFO] [stdout]      |
[INFO] [stdout] 5993 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:6074:5
[INFO] [stdout]      |
[INFO] [stdout] 6074 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io`
[INFO] [stdout]   --> u-cc/src/main.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::{fs, io};
[INFO] [stdout]    |               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ebp`
[INFO] [stdout]   --> u-cc/src/asm.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Ebp,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Esp`
[INFO] [stdout]   --> u-cc/src/asm.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Esp,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `no_size`
[INFO] [stdout]    --> u-cc/src/asm.rs:106:12
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn no_size(mut self) -> IndirectAddress {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lookup_symbol`
[INFO] [stdout]   --> u-cc/src/compiler/symbol_table.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn lookup_symbol(&self, name: &str) -> Option<&Symbol<'src>> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "c3ba36f04a6c9bd1ce4bfc39c9ee4e6bd4b34f31164330b6201fc810d93cf495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3ba36f04a6c9bd1ce4bfc39c9ee4e6bd4b34f31164330b6201fc810d93cf495", kill_on_drop: false }`
[INFO] [stdout] c3ba36f04a6c9bd1ce4bfc39c9ee4e6bd4b34f31164330b6201fc810d93cf495
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 86d0cba34891d43e9888a5cb68c2606c578d8b08af47d21392a8d10d6dc843fa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "86d0cba34891d43e9888a5cb68c2606c578d8b08af47d21392a8d10d6dc843fa", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `env`
[INFO] [stderr]  --> u-cc-test/src/main.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{env, fs, io};
[INFO] [stderr]   |           ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `u-cc-test` (bin "u-cc-test" test) generated 1 warning
[INFO] [stderr] warning: unused import: `crate::asm::Address::Indirect`
[INFO] [stderr]  --> u-cc/src/asm.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::asm::Address::Indirect;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::usize`
[INFO] [stderr]   --> u-cc/src/ast.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |         use std::usize;
[INFO] [stderr]    |             ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::asm::Address::Indirect`
[INFO] [stderr]  --> u-cc/src/compiler.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::asm::Address::Indirect;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ast::Expr::FunctionCall`
[INFO] [stderr]  --> u-cc/src/compiler.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::ast::Expr::FunctionCall;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:4907:5
[INFO] [stderr]      |
[INFO] [stderr] 4907 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5008:5
[INFO] [stderr]      |
[INFO] [stderr] 5008 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5019:5
[INFO] [stderr]      |
[INFO] [stderr] 5019 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5164:5
[INFO] [stderr]      |
[INFO] [stderr] 5164 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5190:5
[INFO] [stderr]      |
[INFO] [stderr] 5190 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5214:5
[INFO] [stderr]      |
[INFO] [stderr] 5214 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5238:5
[INFO] [stderr]      |
[INFO] [stderr] 5238 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5262:5
[INFO] [stderr]      |
[INFO] [stderr] 5262 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5286:5
[INFO] [stderr]      |
[INFO] [stderr] 5286 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5310:5
[INFO] [stderr]      |
[INFO] [stderr] 5310 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5347:5
[INFO] [stderr]      |
[INFO] [stderr] 5347 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5410:5
[INFO] [stderr]      |
[INFO] [stderr] 5410 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5447:5
[INFO] [stderr]      |
[INFO] [stderr] 5447 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5484:5
[INFO] [stderr]      |
[INFO] [stderr] 5484 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5534:5
[INFO] [stderr]      |
[INFO] [stderr] 5534 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5559:5
[INFO] [stderr]      |
[INFO] [stderr] 5559 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5680:5
[INFO] [stderr]      |
[INFO] [stderr] 5680 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5776:5
[INFO] [stderr]      |
[INFO] [stderr] 5776 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5935:5
[INFO] [stderr]      |
[INFO] [stderr] 5935 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:5993:5
[INFO] [stderr]      |
[INFO] [stderr] 5993 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]     --> /opt/rustwide/target/debug/build/u-cc-48917a16960f73ae/out/c.rs:6074:5
[INFO] [stderr]      |
[INFO] [stderr] 6074 |     (__0)
[INFO] [stderr]      |     ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `io`
[INFO] [stderr]   --> u-cc/src/main.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::{fs, io};
[INFO] [stderr]    |               ^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Ebp`
[INFO] [stderr]   --> u-cc/src/asm.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Ebp,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Esp`
[INFO] [stderr]   --> u-cc/src/asm.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Esp,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `no_size`
[INFO] [stderr]    --> u-cc/src/asm.rs:106:12
[INFO] [stderr]     |
[INFO] [stderr] 106 |     pub fn no_size(mut self) -> IndirectAddress {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `lookup_symbol`
[INFO] [stderr]   --> u-cc/src/compiler/symbol_table.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn lookup_symbol(&self, name: &str) -> Option<&Symbol<'src>> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `u-cc` (bin "u-cc" test) generated 30 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/u_cc-137d24b4749bb42f)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/u_cc_test-d2d01ea7952bef39)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "86d0cba34891d43e9888a5cb68c2606c578d8b08af47d21392a8d10d6dc843fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86d0cba34891d43e9888a5cb68c2606c578d8b08af47d21392a8d10d6dc843fa", kill_on_drop: false }`
[INFO] [stdout] 86d0cba34891d43e9888a5cb68c2606c578d8b08af47d21392a8d10d6dc843fa