[INFO] cloning repository https://github.com/KingTimer12/sirin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KingTimer12/sirin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKingTimer12%2Fsirin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKingTimer12%2Fsirin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 504358ca82818845b1f04fd51b3b85b881e1bf19
[INFO] checking KingTimer12/sirin/504358ca82818845b1f04fd51b3b85b881e1bf19 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKingTimer12%2Fsirin" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KingTimer12/sirin on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KingTimer12/sirin
[INFO] finished tweaking git repo https://github.com/KingTimer12/sirin
[INFO] tweaked toml for git repo https://github.com/KingTimer12/sirin written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KingTimer12/sirin 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fbe2a147c906918eebdb2fb97ee4fe7659e1b074d03448fcfa94fd90ddba62f
[INFO] running `Command { std: "docker" "start" "-a" "9fbe2a147c906918eebdb2fb97ee4fe7659e1b074d03448fcfa94fd90ddba62f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fbe2a147c906918eebdb2fb97ee4fe7659e1b074d03448fcfa94fd90ddba62f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fbe2a147c906918eebdb2fb97ee4fe7659e1b074d03448fcfa94fd90ddba62f", kill_on_drop: false }`
[INFO] [stdout] 9fbe2a147c906918eebdb2fb97ee4fe7659e1b074d03448fcfa94fd90ddba62f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f7358f44fc55e7f6a69133e2576c27438e212d2ceaa32febb5fbc0fcf47407b
[INFO] running `Command { std: "docker" "start" "-a" "9f7358f44fc55e7f6a69133e2576c27438e212d2ceaa32febb5fbc0fcf47407b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v4.0.2
[INFO] [stderr]     Checking sirin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/ast/evaluator.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn visit_error(&mut self, span: &super::lexer::TextSpan) {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `span`
[INFO] [stdout]   --> src/ast/evaluator.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn visit_error(&mut self, span: &super::lexer::TextSpan) {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_span`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `kind` is never read
[INFO] [stdout]    --> src/ast/lexer.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 108 |             let mut kind = TokenKind::Bad;
[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: value assigned to `kind` is never read
[INFO] [stdout]    --> src/ast/lexer.rs:108:21
[INFO] [stdout]     |
[INFO] [stdout] 108 |             let mut kind = TokenKind::Bad;
[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: field `indent` is never read
[INFO] [stdout]   --> src/ast/mod.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct ASTPrinter {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 93 |     indent: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Warning` is never constructed
[INFO] [stdout]  --> src/diagnostics/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum DiagnosticsKind {
[INFO] [stdout]   |          --------------- variant in this enum
[INFO] [stdout] 8 |     Error,
[INFO] [stdout] 9 |     Warning,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/diagnostics/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Diagnostics {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub kind: DiagnosticsKind,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `report_warning` is never used
[INFO] [stdout]   --> src/diagnostics/mod.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl DiagnosticsBag {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn report_warning(&mut self, message: String, span: TextSpan) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `indent` is never read
[INFO] [stdout]   --> src/ast/mod.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct ASTPrinter {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 93 |     indent: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Warning` is never constructed
[INFO] [stdout]  --> src/diagnostics/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum DiagnosticsKind {
[INFO] [stdout]   |          --------------- variant in this enum
[INFO] [stdout] 8 |     Error,
[INFO] [stdout] 9 |     Warning,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]   --> src/diagnostics/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Diagnostics {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub kind: DiagnosticsKind,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `report_warning` is never used
[INFO] [stdout]   --> src/diagnostics/mod.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl DiagnosticsBag {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 46 |     pub fn report_warning(&mut self, message: String, span: TextSpan) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "9f7358f44fc55e7f6a69133e2576c27438e212d2ceaa32febb5fbc0fcf47407b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f7358f44fc55e7f6a69133e2576c27438e212d2ceaa32febb5fbc0fcf47407b", kill_on_drop: false }`
[INFO] [stdout] 9f7358f44fc55e7f6a69133e2576c27438e212d2ceaa32febb5fbc0fcf47407b