[INFO] fetching crate procedural-generation 0.3.1...
[INFO] building procedural-generation-0.3.1 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] extracting crate procedural-generation 0.3.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate procedural-generation 0.3.1 on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate procedural-generation 0.3.1
[INFO] finished tweaking crates.io crate procedural-generation 0.3.1
[INFO] tweaked toml for crates.io crate procedural-generation 0.3.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 89 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.6.0)
[INFO] [stderr]       Adding noise v0.6.0 (available: v0.9.0)
[INFO] [stderr]       Adding owo-colors v1.3.0 (available: v4.2.1)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.9.1)
[INFO] [stderr]       Adding smart-default v0.6.0 (available: v0.7.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 628254ce828b688ae79453e0d410b29d726c048cbb131cb03cf407e8fbd10145
[INFO] running `Command { std: "docker" "start" "-a" "628254ce828b688ae79453e0d410b29d726c048cbb131cb03cf407e8fbd10145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "628254ce828b688ae79453e0d410b29d726c048cbb131cb03cf407e8fbd10145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "628254ce828b688ae79453e0d410b29d726c048cbb131cb03cf407e8fbd10145", kill_on_drop: false }`
[INFO] [stdout] 628254ce828b688ae79453e0d410b29d726c048cbb131cb03cf407e8fbd10145
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5726ef7ffaae0857b3c779354119ca26eea4dc73d4bf6ae364e3e2991cdf06ba
[INFO] running `Command { std: "docker" "start" "-a" "5726ef7ffaae0857b3c779354119ca26eea4dc73d4bf6ae364e3e2991cdf06ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling owo-colors v1.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling noise v0.6.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]    Compiling procedural-generation v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]    --> src/lib.rs:297:5
[INFO] [stdout]     |
[INFO] [stdout] 292 | struct Room {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 297 |     width: usize,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 298 |     height: usize,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Room` has derived impls for the traits `Debug` and `Default`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.37s
[INFO] running `Command { std: "docker" "inspect" "5726ef7ffaae0857b3c779354119ca26eea4dc73d4bf6ae364e3e2991cdf06ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5726ef7ffaae0857b3c779354119ca26eea4dc73d4bf6ae364e3e2991cdf06ba", kill_on_drop: false }`
[INFO] [stdout] 5726ef7ffaae0857b3c779354119ca26eea4dc73d4bf6ae364e3e2991cdf06ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74449cd2db822502662a17364b19139b367c21c3d5618c75f86be26c000fdaf4
[INFO] running `Command { std: "docker" "start" "-a" "74449cd2db822502662a17364b19139b367c21c3d5618c75f86be26c000fdaf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]    --> src/lib.rs:297:5
[INFO] [stdout]     |
[INFO] [stdout] 292 | struct Room {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 297 |     width: usize,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 298 |     height: usize,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Room` has derived impls for the traits `Debug` and `Default`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling csv-core v0.1.12
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.3.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling procedural-generation v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]    --> src/lib.rs:297:5
[INFO] [stdout]     |
[INFO] [stdout] 292 | struct Room {
[INFO] [stdout]     |        ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 297 |     width: usize,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 298 |     height: usize,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Room` has derived impls for the traits `Debug` and `Default`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.30s
[INFO] running `Command { std: "docker" "inspect" "74449cd2db822502662a17364b19139b367c21c3d5618c75f86be26c000fdaf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74449cd2db822502662a17364b19139b367c21c3d5618c75f86be26c000fdaf4", kill_on_drop: false }`
[INFO] [stdout] 74449cd2db822502662a17364b19139b367c21c3d5618c75f86be26c000fdaf4