[INFO] fetching crate anachro-forth-core 0.0.2...
[INFO] checking anachro-forth-core-0.0.2 against master#8c6ce6b91b172f77c795a74bfeaf74b865146b3f for pr-101345
[INFO] extracting crate anachro-forth-core 0.0.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate anachro-forth-core 0.0.2 on toolchain 8c6ce6b91b172f77c795a74bfeaf74b865146b3f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate anachro-forth-core 0.0.2
[INFO] finished tweaking crates.io crate anachro-forth-core 0.0.2
[INFO] tweaked toml for crates.io crate anachro-forth-core 0.0.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hash32 v0.2.1
[INFO] [stderr]   Downloaded postcard-cobs v0.1.5-pre
[INFO] [stderr]   Downloaded spin v0.9.4
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.10
[INFO] [stderr]   Downloaded heapless v0.7.16
[INFO] [stderr]   Downloaded postcard v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8b1bca6801d3722204b0b92d8ff21a91b7837e982b920f77d6c00163a758397
[INFO] running `Command { std: "docker" "start" "-a" "a8b1bca6801d3722204b0b92d8ff21a91b7837e982b920f77d6c00163a758397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8b1bca6801d3722204b0b92d8ff21a91b7837e982b920f77d6c00163a758397", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b1bca6801d3722204b0b92d8ff21a91b7837e982b920f77d6c00163a758397", kill_on_drop: false }`
[INFO] [stdout] a8b1bca6801d3722204b0b92d8ff21a91b7837e982b920f77d6c00163a758397
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d91d863a80a0f45585a6f0d25e83c05ea21a63be3f28ec4cff9dfecde622d20a
[INFO] running `Command { std: "docker" "start" "-a" "d91d863a80a0f45585a6f0d25e83c05ea21a63be3f28ec4cff9dfecde622d20a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling semver v1.0.13
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking postcard-cobs v0.1.5-pre
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.8
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking spin v0.9.4
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]     Checking postcard v0.7.3
[INFO] [stderr]     Checking anachro-forth-core v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/compiler.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::BTreeMap, ops::Deref};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]   --> src/nostd_rt.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct HVecStack<T, const N: usize> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 16 |     data: Vec<T, N>,
[INFO] [stdout] 17 |     err: Error,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: `HVecStack` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]   --> src/std_rt.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct StdVecStack<T> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 12 |     data: Vec<T>,
[INFO] [stdout] 13 |     err: Error,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: `StdVecStack` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `err` is never read
[INFO] [stdout]   --> src/nostd_rt.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct HVecStack<T, const N: usize> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 16 |     data: Vec<T, N>,
[INFO] [stdout] 17 |     err: Error,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HVecStack` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.76s
[INFO] running `Command { std: "docker" "inspect" "d91d863a80a0f45585a6f0d25e83c05ea21a63be3f28ec4cff9dfecde622d20a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d91d863a80a0f45585a6f0d25e83c05ea21a63be3f28ec4cff9dfecde622d20a", kill_on_drop: false }`
[INFO] [stdout] d91d863a80a0f45585a6f0d25e83c05ea21a63be3f28ec4cff9dfecde622d20a