[INFO] fetching crate wasi_virt_layer-cli 0.4.12...
[INFO] checking wasi_virt_layer-cli-0.4.12 against master#53509ca37e3b507887607c2f4a7f23bd4838f099 for pr-156027
[INFO] extracting crate wasi_virt_layer-cli 0.4.12 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate wasi_virt_layer-cli 0.4.12
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate wasi_virt_layer-cli 0.4.12
[INFO] tweaked toml for crates.io crate wasi_virt_layer-cli 0.4.12 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasi_virt_layer-cli 0.4.12 on toolchain 53509ca37e3b507887607c2f4a7f23bd4838f099
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53509ca37e3b507887607c2f4a7f23bd4838f099" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wasi_virt_layer-cli 0.4.12 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" "+53509ca37e3b507887607c2f4a7f23bd4838f099" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+53509ca37e3b507887607c2f4a7f23bd4838f099" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "0ae7fc7ddac96f88344b6118821d6124c7623a5896bcff3de2ee1e1dd6f7c793", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `instrs::InstrRewrite as _`
[INFO] [stdout]   --> src/generator/multi_memory_lowering.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     instrs::InstrRewrite as _,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `instrs::InstrRewrite as _`
[INFO] [stdout]   --> src/generator/multi_memory_lowering.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     instrs::InstrRewrite as _,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContextCompat`
[INFO] [stdout]  --> src/generator/memory.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use eyre::{Context as _, ContextCompat as _};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WalrusUtilModule`
[INFO] [stdout]    --> src/generator/threads.rs:473:38
[INFO] [stdout]     |
[INFO] [stdout] 473 |         use crate::util::{WalrusFID, WalrusUtilModule};
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContextCompat`
[INFO] [stdout]  --> src/generator/memory.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use eyre::{Context as _, ContextCompat as _};
[INFO] [stdout]   |                          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WalrusUtilModule`
[INFO] [stdout]    --> src/generator/threads.rs:473:38
[INFO] [stdout]     |
[INFO] [stdout] 473 |         use crate::util::{WalrusFID, WalrusUtilModule};
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/generator/wrap_unreachable.rs:529:13
[INFO] [stdout]     |
[INFO] [stdout] 529 |         let mut scan_results: Vec<(FunctionId, Vec<ValType>, InstrScanResult)> = func_ids
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/generator/multi_memory_lowering.rs:389:79
[INFO] [stdout]     |
[INFO] [stdout] 389 |             let fid = module.add_func(&[ValType::I32], &[ValType::I32], move |mut builder, args| {
[INFO] [stdout]     |                                                                               ----^^^^^^^
[INFO] [stdout]     |                                                                               |
[INFO] [stdout]     |                                                                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/generator/wrap_unreachable.rs:529:13
[INFO] [stdout]     |
[INFO] [stdout] 529 |         let mut scan_results: Vec<(FunctionId, Vec<ValType>, InstrScanResult)> = func_ids
[INFO] [stdout]     |             ----^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/generator/multi_memory_lowering.rs:389:79
[INFO] [stdout]     |
[INFO] [stdout] 389 |             let fid = module.add_func(&[ValType::I32], &[ValType::I32], move |mut builder, args| {
[INFO] [stdout]     |                                                                               ----^^^^^^^
[INFO] [stdout]     |                                                                               |
[INFO] [stdout]     |                                                                               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `flat_read` and `all_rewrite` are never used
[INFO] [stdout]    --> src/util.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub(crate) trait WalrusUtilFuncs {
[INFO] [stdout]     |                  --------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn flat_read<T>(
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     fn all_rewrite<T>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a function
[INFO] [stdout]  --> src/feature_extractor.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / pub fn extract_features(
[INFO] [stdout] 4 | |     matches: &ArgMatches,
[INFO] [stdout] 5 | |     wasm_count: usize,
[INFO] [stdout] 6 | | ) -> (
[INFO] [stdout] 7 | |     crate::args::VfsBuildOptions,
[INFO] [stdout] 8 | |     Box<[crate::args::VfsBuildOptions]>,
[INFO] [stdout] 9 | | ) {
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]   --> src/generator/mod.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub mod starts;
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]   --> src/generator/mod.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub mod vfs_host;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]   --> src/generator/mod.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub starts: starts::FnInStarts,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/generator/shared_global.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     GlobalAltSetWithLock,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/generator/starts.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn new(wasms: &[WasmName]) -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]    --> src/generator/starts.rs:174:1
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub struct FnInStartsGeneratorFirst;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]    --> src/generator/starts.rs:177:1
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub struct FnInStartsGeneratorLast;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `flat_read` and `all_rewrite` are never used
[INFO] [stdout]    --> src/util.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub(crate) trait WalrusUtilFuncs {
[INFO] [stdout]     |                  --------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn flat_read<T>(
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     fn all_rewrite<T>(
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a function
[INFO] [stdout]  --> src/feature_extractor.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | / pub fn extract_features(
[INFO] [stdout] 4 | |     matches: &ArgMatches,
[INFO] [stdout] 5 | |     wasm_count: usize,
[INFO] [stdout] 6 | | ) -> (
[INFO] [stdout] 7 | |     crate::args::VfsBuildOptions,
[INFO] [stdout] 8 | |     Box<[crate::args::VfsBuildOptions]>,
[INFO] [stdout] 9 | | ) {
[INFO] [stdout]   | |_^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![warn(missing_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]   --> src/generator/mod.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub mod starts;
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]   --> src/generator/mod.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub mod vfs_host;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct field
[INFO] [stdout]   --> src/generator/mod.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub starts: starts::FnInStarts,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]   --> src/generator/shared_global.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     GlobalAltSetWithLock,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an associated function
[INFO] [stdout]   --> src/generator/starts.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn new(wasms: &[WasmName]) -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]    --> src/generator/starts.rs:174:1
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub struct FnInStartsGeneratorFirst;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a struct
[INFO] [stdout]    --> src/generator/starts.rs:177:1
[INFO] [stdout]     |
[INFO] [stdout] 177 | pub struct FnInStartsGeneratorLast;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 59.74s
[INFO] running `Command { std: "docker" "inspect" "31218ced53942e4cf962218703251ad5860180454c02432b384c4268c745728a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31218ced53942e4cf962218703251ad5860180454c02432b384c4268c745728a", kill_on_drop: false }`
[INFO] [stdout] 31218ced53942e4cf962218703251ad5860180454c02432b384c4268c745728a
