[INFO] cloning repository https://github.com/dowdiness/rust-tiny-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dowdiness/rust-tiny-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Frust-tiny-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Frust-tiny-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2330ccd3d119c342c4a0e4774d3565765b00d397
[INFO] testing dowdiness/rust-tiny-compiler against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Frust-tiny-compiler" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dowdiness/rust-tiny-compiler on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dowdiness/rust-tiny-compiler
[INFO] finished tweaking git repo https://github.com/dowdiness/rust-tiny-compiler
[INFO] tweaked toml for git repo https://github.com/dowdiness/rust-tiny-compiler written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dowdiness/rust-tiny-compiler 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing dowdiness/rust-tiny-compiler against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Frust-tiny-compiler" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dowdiness/rust-tiny-compiler on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dowdiness/rust-tiny-compiler
[INFO] finished tweaking git repo https://github.com/dowdiness/rust-tiny-compiler
[INFO] tweaked toml for git repo https://github.com/dowdiness/rust-tiny-compiler written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dowdiness/rust-tiny-compiler 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 675761c9730d4a14a8085c5e325cbc466a86c7122bd8eb77f383526006f33dfe
[INFO] running `Command { std: "docker" "start" "-a" "675761c9730d4a14a8085c5e325cbc466a86c7122bd8eb77f383526006f33dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "675761c9730d4a14a8085c5e325cbc466a86c7122bd8eb77f383526006f33dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675761c9730d4a14a8085c5e325cbc466a86c7122bd8eb77f383526006f33dfe", kill_on_drop: false }`
[INFO] [stdout] 675761c9730d4a14a8085c5e325cbc466a86c7122bd8eb77f383526006f33dfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 728ea2fd4e32c80c123686ef5452fb82fb0f06b139ee24f4e74551e74c36e485
[INFO] running `Command { std: "docker" "start" "-a" "728ea2fd4e32c80c123686ef5452fb82fb0f06b139ee24f4e74551e74c36e485", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rust-tiny-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `type`, `name`, and `value` are never read
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct AstNode {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 13 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 14 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     value: Option<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `type` is never read
[INFO] [stdout]   --> src/parser.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Ast {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 21 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `Command { std: "docker" "inspect" "728ea2fd4e32c80c123686ef5452fb82fb0f06b139ee24f4e74551e74c36e485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "728ea2fd4e32c80c123686ef5452fb82fb0f06b139ee24f4e74551e74c36e485", kill_on_drop: false }`
[INFO] [stdout] 728ea2fd4e32c80c123686ef5452fb82fb0f06b139ee24f4e74551e74c36e485
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c19e519fbb44a3a3c1e938ed15f46557768b26b6dd430fdf82afd614fd84c401
[INFO] running `Command { std: "docker" "start" "-a" "c19e519fbb44a3a3c1e938ed15f46557768b26b6dd430fdf82afd614fd84c401", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-tiny-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `type`, `name`, and `value` are never read
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct AstNode {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 13 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 14 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     value: Option<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `type` is never read
[INFO] [stdout]   --> src/parser.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Ast {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 21 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `type`, `name`, and `value` are never read
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct AstNode {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 13 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 14 |     name: Option<String>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     value: Option<String>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AstNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `type` is never read
[INFO] [stdout]   --> src/parser.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Ast {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 21 |     r#type: AstType,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "c19e519fbb44a3a3c1e938ed15f46557768b26b6dd430fdf82afd614fd84c401", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19e519fbb44a3a3c1e938ed15f46557768b26b6dd430fdf82afd614fd84c401", kill_on_drop: false }`
[INFO] [stdout] c19e519fbb44a3a3c1e938ed15f46557768b26b6dd430fdf82afd614fd84c401
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 815cec339d1133b53e8d9dd5a417ec4aa98c92cc6c728b881db906c8b51eb89f
[INFO] running `Command { std: "docker" "start" "-a" "815cec339d1133b53e8d9dd5a417ec4aa98c92cc6c728b881db906c8b51eb89f", kill_on_drop: false }`
[INFO] [stderr] warning: fields `type`, `name`, and `value` are never read
[INFO] [stderr]   --> src/parser.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct AstNode {
[INFO] [stderr]    |        ------- fields in this struct
[INFO] [stderr] 13 |     r#type: AstType,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 14 |     name: Option<String>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 15 |     value: Option<String>,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `AstNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `type` is never read
[INFO] [stderr]   --> src/parser.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Ast {
[INFO] [stderr]    |            --- field in this struct
[INFO] [stderr] 21 |     r#type: AstType,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-tiny-compiler` (lib) generated 2 warnings
[INFO] [stderr] warning: `rust-tiny-compiler` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/compiler-5962ced897bfcbc5)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tokenizer::tests::test_tokenizer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_tiny_compiler-81d2a7b81f796b64)
[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] [stderr]    Doc-tests compiler
[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" "815cec339d1133b53e8d9dd5a417ec4aa98c92cc6c728b881db906c8b51eb89f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "815cec339d1133b53e8d9dd5a417ec4aa98c92cc6c728b881db906c8b51eb89f", kill_on_drop: false }`
[INFO] [stdout] 815cec339d1133b53e8d9dd5a417ec4aa98c92cc6c728b881db906c8b51eb89f