[INFO] fetching crate ielr 0.1.1...
[INFO] checking ielr-0.1.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate ielr 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ielr 0.1.1 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] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate ielr 0.1.1
[INFO] finished tweaking crates.io crate ielr 0.1.1
[INFO] tweaked toml for crates.io crate ielr 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate ielr 0.1.1 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fnv v1.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e07da8cf31e03aa4d30148e24761b4cc0580a35f593216a4bd137e191babd6dc
[INFO] running `Command { std: "docker" "start" "-a" "e07da8cf31e03aa4d30148e24761b4cc0580a35f593216a4bd137e191babd6dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e07da8cf31e03aa4d30148e24761b4cc0580a35f593216a4bd137e191babd6dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e07da8cf31e03aa4d30148e24761b4cc0580a35f593216a4bd137e191babd6dc", kill_on_drop: false }`
[INFO] [stdout] e07da8cf31e03aa4d30148e24761b4cc0580a35f593216a4bd137e191babd6dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 40c341b6047383c9a541ed90054ace5463887dd20cf337032dd298a3568e4f37
[INFO] running `Command { std: "docker" "start" "-a" "40c341b6047383c9a541ed90054ace5463887dd20cf337032dd298a3568e4f37", kill_on_drop: false }`
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]     Checking ielr v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DisplayTable` is never constructed
[INFO] [stdout]    --> tests/integration/complex_grammars.rs:286:8
[INFO] [stdout]     |
[INFO] [stdout] 286 | struct DisplayTable<'a> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fmt_lookahead` is never used
[INFO] [stdout]    --> tests/integration/complex_grammars.rs:293:8
[INFO] [stdout]     |
[INFO] [stdout] 292 | impl DisplayTable<'_> {
[INFO] [stdout]     | --------------------- method in this implementation
[INFO] [stdout] 293 |     fn fmt_lookahead(&self, f: &mut fmt::Formatter<'_>, lookahead: Lookahead) -> fmt::Result {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DisplayTable` is never constructed
[INFO] [stdout]    --> src/test_common.rs:165:23
[INFO] [stdout]     |
[INFO] [stdout] 165 |     pub(crate) struct DisplayTable<'a, Kind>(&'a LRTable<Kind>);
[INFO] [stdout]     |                       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `token_str`, `node_str`, and `symbol_str` are never used
[INFO] [stdout]    --> src/test_common.rs:168:12
[INFO] [stdout]     |
[INFO] [stdout] 167 |     impl<Kind: 'static> DisplayTable<'_, Kind> {
[INFO] [stdout]     |     ------------------------------------------ associated functions in this implementation
[INFO] [stdout] 168 |         fn token_str(token: Token) -> &'static str {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |         fn node_str(node: Node) -> &'static str {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 186 |         fn symbol_str(symbol: Symbol) -> &'static str {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "40c341b6047383c9a541ed90054ace5463887dd20cf337032dd298a3568e4f37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40c341b6047383c9a541ed90054ace5463887dd20cf337032dd298a3568e4f37", kill_on_drop: false }`
[INFO] [stdout] 40c341b6047383c9a541ed90054ace5463887dd20cf337032dd298a3568e4f37