[INFO] cloning repository https://github.com/sulabhkatila/Lost
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sulabhkatila/Lost" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsulabhkatila%2FLost", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsulabhkatila%2FLost'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aca4ab582b842a7f8ace685b1c0ff67ceaca29f5
[INFO] checking sulabhkatila/Lost against master#a7fc463dd8fbeca800d4b3efc501069502cffe64 for pr-136988
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsulabhkatila%2FLost" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sulabhkatila/Lost on toolchain a7fc463dd8fbeca800d4b3efc501069502cffe64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7fc463dd8fbeca800d4b3efc501069502cffe64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sulabhkatila/Lost
[INFO] finished tweaking git repo https://github.com/sulabhkatila/Lost
[INFO] tweaked toml for git repo https://github.com/sulabhkatila/Lost written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sulabhkatila/Lost already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7fc463dd8fbeca800d4b3efc501069502cffe64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+a7fc463dd8fbeca800d4b3efc501069502cffe64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fbfeb7902c0853c64fe0144e91f27e5a7a4dd1d290f500653fe7b7abfe1cd88
[INFO] running `Command { std: "docker" "start" "-a" "8fbfeb7902c0853c64fe0144e91f27e5a7a4dd1d290f500653fe7b7abfe1cd88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fbfeb7902c0853c64fe0144e91f27e5a7a4dd1d290f500653fe7b7abfe1cd88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fbfeb7902c0853c64fe0144e91f27e5a7a4dd1d290f500653fe7b7abfe1cd88", kill_on_drop: false }`
[INFO] [stdout] 8fbfeb7902c0853c64fe0144e91f27e5a7a4dd1d290f500653fe7b7abfe1cd88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+a7fc463dd8fbeca800d4b3efc501069502cffe64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1865b5f96267c089249bf7754b9f0ea19c3201f87a5fb951ab132a31c9c19c1a
[INFO] running `Command { std: "docker" "start" "-a" "1865b5f96267c089249bf7754b9f0ea19c3201f87a5fb951ab132a31c9c19c1a", kill_on_drop: false }`
[INFO] [stderr]     Checking lost v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/parser/stmt.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::expr::{self, *};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/parser/stmt.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::expr::{self, *};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/parser/parser.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{self, Write},
[INFO] [stdout]   |          ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/parser/parser.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 |     io::{self, Write},
[INFO] [stdout]   |          ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/parser/parser.rs:253:19
[INFO] [stdout]     |
[INFO] [stdout] 253 |         } else if (self.match_next(vec![TokenType::Var])) {
[INFO] [stdout]     |                   ^                                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 253 -         } else if (self.match_next(vec![TokenType::Var])) {
[INFO] [stdout] 253 +         } else if self.match_next(vec![TokenType::Var]) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/parser/parser.rs:253:19
[INFO] [stdout]     |
[INFO] [stdout] 253 |         } else if (self.match_next(vec![TokenType::Var])) {
[INFO] [stdout]     |                   ^                                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 253 -         } else if (self.match_next(vec![TokenType::Var])) {
[INFO] [stdout] 253 +         } else if self.match_next(vec![TokenType::Var]) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `time::Instant` and `write`
[INFO] [stdout]   --> src/interpreter/types.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fmt::{self, write},
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 16 |     rc::Rc,
[INFO] [stdout] 17 |     time::Instant,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/interpreter/types.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 |     environment::{self, Environment},
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `time::Instant` and `write`
[INFO] [stdout]   --> src/interpreter/types.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fmt::{self, write},
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 16 |     rc::Rc,
[INFO] [stdout] 17 |     time::Instant,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/interpreter/types.rs:23:19
[INFO] [stdout]    |
[INFO] [stdout] 23 |     environment::{self, Environment},
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `closing_paren`
[INFO] [stdout]   --> src/parser/astprinter.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         closing_paren: &Token,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_closing_paren`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/parser/astprinter.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn visit_get(&mut self, expr: &mut Box<Expr>, name: &Token) -> String {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/parser/astprinter.rs:43:51
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn visit_get(&mut self, expr: &mut Box<Expr>, name: &Token) -> String {
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/parser/astprinter.rs:47:29
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn visit_set(&mut self, expr: &mut Box<Expr>, name: &Token, value: &mut Box<Expr>) -> String {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/parser/astprinter.rs:47:51
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn visit_set(&mut self, expr: &mut Box<Expr>, name: &Token, value: &mut Box<Expr>) -> String {
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/parser/astprinter.rs:47:65
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn visit_set(&mut self, expr: &mut Box<Expr>, name: &Token, value: &mut Box<Expr>) -> String {
[INFO] [stdout]    |                                                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `closing_paren`
[INFO] [stdout]   --> src/parser/astprinter.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         closing_paren: &Token,
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_closing_paren`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expr`
[INFO] [stdout]   --> src/parser/astprinter.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn visit_get(&mut self, expr: &mut Box<Expr>, name: &Token) -> String {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_expr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `starting_brace`
[INFO] [stdout]    --> src/parser/parser.rs:142:13
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let starting_brace = self.consume(
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_starting_brace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `initializer` is never read
[INFO] [stdout]    --> src/parser/parser.rs:250:17
[INFO] [stdout]     |
[INFO] [stdout] 250 |         let mut initializer: Option<Stmt> = None;
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `equals`
[INFO] [stdout]    --> src/parser/parser.rs:424:17
[INFO] [stdout]     |
[INFO] [stdout] 424 |             let equals = self.previous();
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_equals`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser/parser.rs:545:13
[INFO] [stdout]     |
[INFO] [stdout] 545 |         let mut error = None;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fun`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:103:28
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Type::Function(fun) => todo!(),
[INFO] [stdout]     |                            ^^^ help: if this is intentional, prefix it with an underscore: `_fun`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lost` (lib); 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/a7fc463dd8fbeca800d4b3efc501069502cffe64/bin/rustc --crate-name lost --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=639d66155bda1c8e -C extra-filename=-cb5f88a07d21cc39 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 0)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lost` (lib test); 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/a7fc463dd8fbeca800d4b3efc501069502cffe64/bin/rustc --crate-name lost --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=d5f0bacee2c7c11b -C extra-filename=-a190899057e2ad7d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 0)
[INFO] running `Command { std: "docker" "inspect" "1865b5f96267c089249bf7754b9f0ea19c3201f87a5fb951ab132a31c9c19c1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1865b5f96267c089249bf7754b9f0ea19c3201f87a5fb951ab132a31c9c19c1a", kill_on_drop: false }`
[INFO] [stdout] 1865b5f96267c089249bf7754b9f0ea19c3201f87a5fb951ab132a31c9c19c1a