[INFO] updating cached repository https://github.com/AntonioCarta/dragon_compiler
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63446519197371c6da920314494ad8a50b072833
[INFO] testing AntonioCarta/dragon_compiler against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonioCarta%2Fdragon_compiler" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AntonioCarta/dragon_compiler on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AntonioCarta/dragon_compiler
[INFO] finished tweaking git repo https://github.com/AntonioCarta/dragon_compiler
[INFO] tweaked toml for git repo https://github.com/AntonioCarta/dragon_compiler written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/AntonioCarta/dragon_compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9c7053a40a7eab648dedb263288de9fdc0f89720a0d96fb3a7908f00a979e45
[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" "c9c7053a40a7eab648dedb263288de9fdc0f89720a0d96fb3a7908f00a979e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9c7053a40a7eab648dedb263288de9fdc0f89720a0d96fb3a7908f00a979e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c7053a40a7eab648dedb263288de9fdc0f89720a0d96fb3a7908f00a979e45", kill_on_drop: false }`
[INFO] [stdout] c9c7053a40a7eab648dedb263288de9fdc0f89720a0d96fb3a7908f00a979e45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 892c4e098f785336e4da8528663f37af7b2207c2b65a1c2af16405fb0501feab
[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" "892c4e098f785336e4da8528663f37af7b2207c2b65a1c2af16405fb0501feab", kill_on_drop: false }`
[INFO] [stderr]    Compiling mini_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |             '0' ... '9' => self.scan_number(),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |             'a' ... 'z' |
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:177:17
[INFO] [stdout]     |
[INFO] [stdout] 177 |             'A' ... 'Z' => self.scan_iden_keyword(),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/code_generator.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         (n - 1)
[INFO] [stdout]    |         ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AddressMode`, `Address`
[INFO] [stdout]  --> src/interpreter.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use code_generator::{OpCode, AddressMode, AddressCode, Address, IntermediateRepresentation};
[INFO] [stdout]   |                              ^^^^^^^^^^^               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around assigned value
[INFO] [stdout]   --> src/interpreter.rs:33:53
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 OpCode::IsPos   => self.regs[res] = {if x > 0 {1} else {0}},
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around assigned value
[INFO] [stdout]   --> src/interpreter.rs:34:53
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 OpCode::IsNeg   => self.regs[res] = {if x < 0 {1} else {0}},
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/lexer.rs:148:12
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn new() -> Scanner {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/code_generator.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         id  : i32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]  --> src/interpreter.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     stack     : Vec<i32>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "892c4e098f785336e4da8528663f37af7b2207c2b65a1c2af16405fb0501feab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "892c4e098f785336e4da8528663f37af7b2207c2b65a1c2af16405fb0501feab", kill_on_drop: false }`
[INFO] [stdout] 892c4e098f785336e4da8528663f37af7b2207c2b65a1c2af16405fb0501feab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f8bb7f4038c354bd4dadd53ddaeae19ef811fe175e2a432e1fb4e02262e4d3b
[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" "6f8bb7f4038c354bd4dadd53ddaeae19ef811fe175e2a432e1fb4e02262e4d3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling mini_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:175:17
[INFO] [stdout]     |
[INFO] [stdout] 175 |             '0' ... '9' => self.scan_number(),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |             'a' ... 'z' |
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/lexer.rs:177:17
[INFO] [stdout]     |
[INFO] [stdout] 177 |             'A' ... 'Z' => self.scan_iden_keyword(),
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Scanner`
[INFO] [stdout]  --> src/test/lexer_test.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | use lexer::{Scanner};
[INFO] [stdout]   |             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/code_generator.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         (n - 1)
[INFO] [stdout]    |         ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AddressMode`, `Address`
[INFO] [stdout]  --> src/interpreter.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use code_generator::{OpCode, AddressMode, AddressCode, Address, IntermediateRepresentation};
[INFO] [stdout]   |                              ^^^^^^^^^^^               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around assigned value
[INFO] [stdout]   --> src/interpreter.rs:33:53
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 OpCode::IsPos   => self.regs[res] = {if x > 0 {1} else {0}},
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around assigned value
[INFO] [stdout]   --> src/interpreter.rs:34:53
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 OpCode::IsNeg   => self.regs[res] = {if x < 0 {1} else {0}},
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/lexer.rs:148:12
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn new() -> Scanner {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `SAst`
[INFO] [stdout]  --> src/test/parser_test.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     type SAst = Box<S>;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add`
[INFO] [stdout]   --> src/test/parser_test.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn add(e1 : NAst, e2 : NAst) -> NAst { nbox(N::Add(e1, e2)) }
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/code_generator.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         id  : i32,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stack`
[INFO] [stdout]  --> src/interpreter.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     stack     : Vec<i32>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "6f8bb7f4038c354bd4dadd53ddaeae19ef811fe175e2a432e1fb4e02262e4d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f8bb7f4038c354bd4dadd53ddaeae19ef811fe175e2a432e1fb4e02262e4d3b", kill_on_drop: false }`
[INFO] [stdout] 6f8bb7f4038c354bd4dadd53ddaeae19ef811fe175e2a432e1fb4e02262e4d3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 66f78194180a4358f0a7a75c6479f1189b0319b6a2d706b686a75b876eb87638
[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" "66f78194180a4358f0a7a75c6479f1189b0319b6a2d706b686a75b876eb87638", kill_on_drop: false }`
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:175:17
[INFO] [stderr]     |
[INFO] [stderr] 175 |             '0' ... '9' => self.scan_number(),
[INFO] [stderr]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:176:17
[INFO] [stderr]     |
[INFO] [stderr] 176 |             'a' ... 'z' |
[INFO] [stderr]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:177:17
[INFO] [stderr]     |
[INFO] [stderr] 177 |             'A' ... 'Z' => self.scan_iden_keyword(),
[INFO] [stderr]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Scanner`
[INFO] [stderr]  --> src/test/lexer_test.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 | use lexer::{Scanner};
[INFO] [stderr]   |             ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/code_generator.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         (n - 1)
[INFO] [stderr]    |         ^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `AddressMode`, `Address`
[INFO] [stderr]  --> src/interpreter.rs:1:30
[INFO] [stderr]   |
[INFO] [stderr] 1 | use code_generator::{OpCode, AddressMode, AddressCode, Address, IntermediateRepresentation};
[INFO] [stderr]   |                              ^^^^^^^^^^^               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/interpreter.rs:33:53
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 OpCode::IsPos   => self.regs[res] = {if x > 0 {1} else {0}},
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/interpreter.rs:34:53
[INFO] [stderr]    |
[INFO] [stderr] 34 |                 OpCode::IsNeg   => self.regs[res] = {if x < 0 {1} else {0}},
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/lexer.rs:148:12
[INFO] [stderr]     |
[INFO] [stderr] 148 |     pub fn new() -> Scanner {
[INFO] [stderr]     |            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `SAst`
[INFO] [stderr]  --> src/test/parser_test.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     type SAst = Box<S>;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add`
[INFO] [stderr]   --> src/test/parser_test.rs:52:8
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn add(e1 : NAst, e2 : NAst) -> NAst { nbox(N::Add(e1, e2)) }
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/code_generator.rs:59:9
[INFO] [stderr]    |
[INFO] [stderr] 59 |         id  : i32,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stack`
[INFO] [stderr]  --> src/interpreter.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     stack     : Vec<i32>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mini_compiler-372c10553c5281cb
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::lexer_test::test::basic_test ... ok
[INFO] [stdout] test test::parser_test::test::numexpr_test ... ok
[INFO] [stdout] test test::parser_test::test::bool_test ... ok
[INFO] [stdout] test test::parser_test::test::prog_test ... ok
[INFO] [stdout] test test::parser_test::test::stmt_test ... ok
[INFO] [stdout] test test::parser_test::test::decl_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66f78194180a4358f0a7a75c6479f1189b0319b6a2d706b686a75b876eb87638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f78194180a4358f0a7a75c6479f1189b0319b6a2d706b686a75b876eb87638", kill_on_drop: false }`
[INFO] [stdout] 66f78194180a4358f0a7a75c6479f1189b0319b6a2d706b686a75b876eb87638