[INFO] cloning repository https://github.com/DCubix/ToyLang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DCubix/ToyLang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDCubix%2FToyLang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDCubix%2FToyLang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ca21919f17f4f26b897118cf59ea7ece3479061
[INFO] checking DCubix/ToyLang against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDCubix%2FToyLang" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DCubix/ToyLang on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DCubix/ToyLang
[INFO] finished tweaking git repo https://github.com/DCubix/ToyLang
[INFO] tweaked toml for git repo https://github.com/DCubix/ToyLang written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/DCubix/ToyLang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7842ee870b53f77a67b36791898867f956e32b21061c76991b47aace1b4e55f
[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" "c7842ee870b53f77a67b36791898867f956e32b21061c76991b47aace1b4e55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7842ee870b53f77a67b36791898867f956e32b21061c76991b47aace1b4e55f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7842ee870b53f77a67b36791898867f956e32b21061c76991b47aace1b4e55f", kill_on_drop: false }`
[INFO] [stdout] c7842ee870b53f77a67b36791898867f956e32b21061c76991b47aace1b4e55f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e200265c7ddfd9f14a95fee48164715465640d1557fb84ed23299c035e028a18
[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" "e200265c7ddfd9f14a95fee48164715465640d1557fb84ed23299c035e028a18", kill_on_drop: false }`
[INFO] [stderr]     Checking maplit v1.0.1
[INFO] [stderr]     Checking lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/lexer.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 '0'...'9' | '.' => {
[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:77:11
[INFO] [stdout]    |
[INFO] [stdout] 77 |                             'a'...'f' | 'A'...'F' => false,
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/lexer.rs:77:23
[INFO] [stdout]    |
[INFO] [stdout] 77 |                             'a'...'f' | 'A'...'F' => false,
[INFO] [stdout]    |                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/lexer.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 'a'...'z' | '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:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 '0'...'9' | '.' => {
[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:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::scanner::Scanner`
[INFO] [stdout]  --> src/interp.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::scanner::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/lexer.rs:77:11
[INFO] [stdout]    |
[INFO] [stdout] 77 |                             'a'...'f' | 'A'...'F' => false,
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/lexer.rs:77:23
[INFO] [stdout]    |
[INFO] [stdout] 77 |                             'a'...'f' | 'A'...'F' => false,
[INFO] [stdout]    |                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/lexer.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 'a'...'z' | '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:96:20
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 'a'...'z' | 'A'...'Z' | '_' => {
[INFO] [stdout]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::scanner::Scanner`
[INFO] [stdout]  --> src/interp.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::scanner::Scanner;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev` is assigned to, but never used
[INFO] [stdout]   --> src/lexer.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut prev = '\0';
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_prev` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `prev` is never read
[INFO] [stdout]    --> src/lexer.rs:157:4
[INFO] [stdout]     |
[INFO] [stdout] 157 |             prev = c;
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/scanner.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn next(&self) -> char {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `prev`
[INFO] [stdout]   --> src/scanner.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn prev(&self) -> char {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat_until_any`
[INFO] [stdout]   --> src/scanner.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn eat_until_any(&mut self, value: Vec<char>) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/interp.rs:17:2
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step_back`
[INFO] [stdout]   --> src/interp.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn step_back(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `arg_list`
[INFO] [stdout]    --> src/interp.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |     fn arg_list(&mut self) -> Result<Vec<Box<Node>>, String> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `KEYWORDS` should have a snake case name
[INFO] [stdout]   --> src/lexer.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let KEYWORDS: HashMap<&str, BuiltinKeyword> = hashmap!{
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case: `keywords`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev` is assigned to, but never used
[INFO] [stdout]   --> src/lexer.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let mut prev = '\0';
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_prev` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `prev` is never read
[INFO] [stdout]    --> src/lexer.rs:157:4
[INFO] [stdout]     |
[INFO] [stdout] 157 |             prev = c;
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/scanner.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn next(&self) -> char {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `prev`
[INFO] [stdout]   --> src/scanner.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn prev(&self) -> char {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eat_until_any`
[INFO] [stdout]   --> src/scanner.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn eat_until_any(&mut self, value: Vec<char>) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/interp.rs:17:2
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step_back`
[INFO] [stdout]   --> src/interp.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn step_back(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `arg_list`
[INFO] [stdout]    --> src/interp.rs:385:5
[INFO] [stdout]     |
[INFO] [stdout] 385 |     fn arg_list(&mut self) -> Result<Vec<Box<Node>>, String> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `KEYWORDS` should have a snake case name
[INFO] [stdout]   --> src/lexer.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let KEYWORDS: HashMap<&str, BuiltinKeyword> = hashmap!{
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case: `keywords`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "e200265c7ddfd9f14a95fee48164715465640d1557fb84ed23299c035e028a18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e200265c7ddfd9f14a95fee48164715465640d1557fb84ed23299c035e028a18", kill_on_drop: false }`
[INFO] [stdout] e200265c7ddfd9f14a95fee48164715465640d1557fb84ed23299c035e028a18