[INFO] fetching crate wasm-parser 0.2.2...
[INFO] building wasm-parser-0.2.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate wasm-parser 0.2.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate wasm-parser 0.2.2
[INFO] finished tweaking crates.io crate wasm-parser 0.2.2
[INFO] tweaked toml for crates.io crate wasm-parser 0.2.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasm-parser 0.2.2 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 43 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.9.3 (available: v0.11.8)
[INFO] [stderr]       Adding nom v7.1.3 (available: v8.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-coredump-types v0.2.2
[INFO] [stderr]   Downloaded wasm-encoder v0.23.0
[INFO] [stderr]   Downloaded core-wasm-ast v0.2.2
[INFO] [stderr]   Downloaded wasm-printer v0.2.2
[INFO] [stderr]   Downloaded wasm-coredump-encoder v0.2.2
[INFO] [stderr]   Downloaded wasm-coredump-builder v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f07eecee770e05c0af767731027dad53dcf9880077fb08085f36e1467217a05b
[INFO] running `Command { std: "docker" "start" "-a" "f07eecee770e05c0af767731027dad53dcf9880077fb08085f36e1467217a05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f07eecee770e05c0af767731027dad53dcf9880077fb08085f36e1467217a05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f07eecee770e05c0af767731027dad53dcf9880077fb08085f36e1467217a05b", kill_on_drop: false }`
[INFO] [stdout] f07eecee770e05c0af767731027dad53dcf9880077fb08085f36e1467217a05b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dc9ebe3c6716d631f596bf6bbfbf376f93f83ba337884e5e471939d26954dc3
[INFO] running `Command { std: "docker" "start" "-a" "9dc9ebe3c6716d631f596bf6bbfbf376f93f83ba337884e5e471939d26954dc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling wasm-coredump-types v0.2.2
[INFO] [stderr]    Compiling humantime v2.3.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling core-wasm-ast v0.2.2
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling wasm-parser v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ParserError(String);
[INFO] [stdout]    |                   ----------- ^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `ParserError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.03s
[INFO] running `Command { std: "docker" "inspect" "9dc9ebe3c6716d631f596bf6bbfbf376f93f83ba337884e5e471939d26954dc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dc9ebe3c6716d631f596bf6bbfbf376f93f83ba337884e5e471939d26954dc3", kill_on_drop: false }`
[INFO] [stdout] 9dc9ebe3c6716d631f596bf6bbfbf376f93f83ba337884e5e471939d26954dc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1ce8ea1c9c456df27a2ab81a10d17c347cba92f2b3b46b616fe127411cf2245
[INFO] running `Command { std: "docker" "start" "-a" "f1ce8ea1c9c456df27a2ab81a10d17c347cba92f2b3b46b616fe127411cf2245", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-coredump-encoder v0.2.2
[INFO] [stderr]    Compiling wasm-encoder v0.23.0
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ParserError(String);
[INFO] [stdout]    |                   ----------- ^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `ParserError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wasm-printer v0.2.2
[INFO] [stderr]    Compiling wasm-coredump-builder v0.2.2
[INFO] [stderr]    Compiling wasm-parser v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/lib.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct ParserError(String);
[INFO] [stdout]    |                   ----------- ^^^^^^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `ParserError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "f1ce8ea1c9c456df27a2ab81a10d17c347cba92f2b3b46b616fe127411cf2245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1ce8ea1c9c456df27a2ab81a10d17c347cba92f2b3b46b616fe127411cf2245", kill_on_drop: false }`
[INFO] [stdout] f1ce8ea1c9c456df27a2ab81a10d17c347cba92f2b3b46b616fe127411cf2245