[INFO] cloning repository https://github.com/Nanoteck137/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/Nanoteck137/Rust-Compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNanoteck137%2FRust-Compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNanoteck137%2FRust-Compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dab658ae2a66cc6342762b434b750b65e689278a
[INFO] testing Nanoteck137/Rust-Compiler against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNanoteck137%2FRust-Compiler" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nanoteck137/Rust-Compiler on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nanoteck137/Rust-Compiler
[INFO] finished tweaking git repo https://github.com/Nanoteck137/Rust-Compiler
[INFO] tweaked toml for git repo https://github.com/Nanoteck137/Rust-Compiler written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Nanoteck137/Rust-Compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e76d5e6bc3282f0d995acc4a7badbadd7b2c984aaf29b5b806fe17a4059e43ca
[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" "e76d5e6bc3282f0d995acc4a7badbadd7b2c984aaf29b5b806fe17a4059e43ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e76d5e6bc3282f0d995acc4a7badbadd7b2c984aaf29b5b806fe17a4059e43ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e76d5e6bc3282f0d995acc4a7badbadd7b2c984aaf29b5b806fe17a4059e43ca", kill_on_drop: false }`
[INFO] [stdout] e76d5e6bc3282f0d995acc4a7badbadd7b2c984aaf29b5b806fe17a4059e43ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eda36816701af3adc392c44b174d5e53e76c4856eb165c4b28e2e1a02eb3479b
[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" "eda36816701af3adc392c44b174d5e53e76c4856eb165c4b28e2e1a02eb3479b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:158:15
[INFO] [stdout]     |
[INFO] [stdout] 158 |     left: Box<Expr>,
[INFO] [stdout]     |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:159:16
[INFO] [stdout]     |
[INFO] [stdout] 159 |     right: Box<Expr>,
[INFO] [stdout]     |                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:175:22
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn new(left: Box<Expr>, right: Box<Expr>, op: Token) -> ExprOp {
[INFO] [stdout]     |                      ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:175:40
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn new(left: Box<Expr>, right: Box<Expr>, op: Token) -> ExprOp {
[INFO] [stdout]     |                                        ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:183:28
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn new_boxed(left: Box<Expr>, right: Box<Expr>, op: Token) -> Box<ExprOp> {
[INFO] [stdout]     |                            ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:183:46
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn new_boxed(left: Box<Expr>, right: Box<Expr>, op: Token) -> Box<ExprOp> {
[INFO] [stdout]     |                                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:188:48
[INFO] [stdout]     |
[INFO] [stdout] 188 | fn parse_factor(state: &mut ParseState) -> Box<Expr> {
[INFO] [stdout]     |                                                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:201:45
[INFO] [stdout]     |
[INFO] [stdout] 201 | fn parse_mul(state: &mut ParseState) -> Box<Expr> {
[INFO] [stdout]     |                                             ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:217:45
[INFO] [stdout]     |
[INFO] [stdout] 217 | fn parse_add(state: &mut ParseState) -> Box<Expr> {
[INFO] [stdout]     |                                             ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:233:46
[INFO] [stdout]     |
[INFO] [stdout] 233 | fn parse_expr(state: &mut ParseState) -> Box<Expr> {
[INFO] [stdout]     |                                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_all_tokens`
[INFO] [stdout]    --> src/main.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn get_all_tokens(tokenizer: &mut Tokenizer) -> Vec<Token> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "eda36816701af3adc392c44b174d5e53e76c4856eb165c4b28e2e1a02eb3479b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eda36816701af3adc392c44b174d5e53e76c4856eb165c4b28e2e1a02eb3479b", kill_on_drop: false }`
[INFO] [stdout] eda36816701af3adc392c44b174d5e53e76c4856eb165c4b28e2e1a02eb3479b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6b78e32b7cd813e3b53bb7718b504b06335c24ad63495b914a58dddd7220216
[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" "b6b78e32b7cd813e3b53bb7718b504b06335c24ad63495b914a58dddd7220216", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:158:15
[INFO] [stdout]     |
[INFO] [stdout] 158 |     left: Box<Expr>,
[INFO] [stdout]     |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:159:16
[INFO] [stdout]     |
[INFO] [stdout] 159 |     right: Box<Expr>,
[INFO] [stdout]     |                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:175:22
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn new(left: Box<Expr>, right: Box<Expr>, op: Token) -> ExprOp {
[INFO] [stdout]     |                      ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:175:40
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn new(left: Box<Expr>, right: Box<Expr>, op: Token) -> ExprOp {
[INFO] [stdout]     |                                        ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:183:28
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn new_boxed(left: Box<Expr>, right: Box<Expr>, op: Token) -> Box<ExprOp> {
[INFO] [stdout]     |                            ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:183:46
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn new_boxed(left: Box<Expr>, right: Box<Expr>, op: Token) -> Box<ExprOp> {
[INFO] [stdout]     |                                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:188:48
[INFO] [stdout]     |
[INFO] [stdout] 188 | fn parse_factor(state: &mut ParseState) -> Box<Expr> {
[INFO] [stdout]     |                                                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:201:45
[INFO] [stdout]     |
[INFO] [stdout] 201 | fn parse_mul(state: &mut ParseState) -> Box<Expr> {
[INFO] [stdout]     |                                             ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:217:45
[INFO] [stdout]     |
[INFO] [stdout] 217 | fn parse_add(state: &mut ParseState) -> Box<Expr> {
[INFO] [stdout]     |                                             ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:233:46
[INFO] [stdout]     |
[INFO] [stdout] 233 | fn parse_expr(state: &mut ParseState) -> Box<Expr> {
[INFO] [stdout]     |                                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_all_tokens`
[INFO] [stdout]    --> src/main.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn get_all_tokens(tokenizer: &mut Tokenizer) -> Vec<Token> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "b6b78e32b7cd813e3b53bb7718b504b06335c24ad63495b914a58dddd7220216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b78e32b7cd813e3b53bb7718b504b06335c24ad63495b914a58dddd7220216", kill_on_drop: false }`
[INFO] [stdout] b6b78e32b7cd813e3b53bb7718b504b06335c24ad63495b914a58dddd7220216
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a3560587add96c98f04deafc790b4a5421b075037d681060447c31d015242b9f
[INFO] running `Command { std: "docker" "start" "-a" "a3560587add96c98f04deafc790b4a5421b075037d681060447c31d015242b9f", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:158:15
[INFO] [stderr]     |
[INFO] [stderr] 158 |     left: Box<Expr>,
[INFO] [stderr]     |               ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:159:16
[INFO] [stderr]     |
[INFO] [stderr] 159 |     right: Box<Expr>,
[INFO] [stderr]     |                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:175:22
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn new(left: Box<Expr>, right: Box<Expr>, op: Token) -> ExprOp {
[INFO] [stderr]     |                      ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:175:40
[INFO] [stderr]     |
[INFO] [stderr] 175 |     fn new(left: Box<Expr>, right: Box<Expr>, op: Token) -> ExprOp {
[INFO] [stderr]     |                                        ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:183:28
[INFO] [stderr]     |
[INFO] [stderr] 183 |     fn new_boxed(left: Box<Expr>, right: Box<Expr>, op: Token) -> Box<ExprOp> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:183:46
[INFO] [stderr]     |
[INFO] [stderr] 183 |     fn new_boxed(left: Box<Expr>, right: Box<Expr>, op: Token) -> Box<ExprOp> {
[INFO] [stderr]     |                                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:188:48
[INFO] [stderr]     |
[INFO] [stderr] 188 | fn parse_factor(state: &mut ParseState) -> Box<Expr> {
[INFO] [stderr]     |                                                ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:201:45
[INFO] [stderr]     |
[INFO] [stderr] 201 | fn parse_mul(state: &mut ParseState) -> Box<Expr> {
[INFO] [stderr]     |                                             ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:217:45
[INFO] [stderr]     |
[INFO] [stderr] 217 | fn parse_add(state: &mut ParseState) -> Box<Expr> {
[INFO] [stderr]     |                                             ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:233:46
[INFO] [stderr]     |
[INFO] [stderr] 233 | fn parse_expr(state: &mut ParseState) -> Box<Expr> {
[INFO] [stderr]     |                                              ^^^^ help: use `dyn`: `dyn Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_all_tokens`
[INFO] [stderr]    --> src/main.rs:100:4
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn get_all_tokens(tokenizer: &mut Tokenizer) -> Vec<Token> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_compiler` (bin "rust_compiler" test) generated 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_compiler-55dc085525015aa0)
[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" "a3560587add96c98f04deafc790b4a5421b075037d681060447c31d015242b9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3560587add96c98f04deafc790b4a5421b075037d681060447c31d015242b9f", kill_on_drop: false }`
[INFO] [stdout] a3560587add96c98f04deafc790b4a5421b075037d681060447c31d015242b9f