[INFO] fetching crate ddbug_parser 0.3.0... [INFO] checking ddbug_parser-0.3.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate ddbug_parser 0.3.0 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate ddbug_parser 0.3.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate ddbug_parser 0.3.0 [INFO] finished tweaking crates.io crate ddbug_parser 0.3.0 [INFO] tweaked toml for crates.io crate ddbug_parser 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 22 packages [INFO] [stderr] Adding fallible-iterator v0.2.0 (latest: v0.3.0) [INFO] [stderr] Adding gimli v0.23.0 (latest: v0.28.1) [INFO] [stderr] Adding hashbrown v0.12.3 (latest: v0.14.3) [INFO] [stderr] Adding indexmap v1.9.3 (latest: v2.2.6) [INFO] [stderr] Adding object v0.23.0 (latest: v0.34.0) [INFO] [stderr] Adding wasmparser v0.57.0 (latest: v0.202.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded wasmparser v0.57.0 [INFO] [stderr] Downloaded object v0.23.0 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fe6f41b09dcfede61335df07a21b913638a14dd473800c20a5669f95c54eccec [INFO] running `Command { std: "docker" "start" "-a" "fe6f41b09dcfede61335df07a21b913638a14dd473800c20a5669f95c54eccec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fe6f41b09dcfede61335df07a21b913638a14dd473800c20a5669f95c54eccec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fe6f41b09dcfede61335df07a21b913638a14dd473800c20a5669f95c54eccec", kill_on_drop: false }` [INFO] [stdout] fe6f41b09dcfede61335df07a21b913638a14dd473800c20a5669f95c54eccec [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 37d652f33d34c32dbd26f5fcca08291c7eef4a97d8a5d2a6794a14a130d41ae2 [INFO] running `Command { std: "docker" "start" "-a" "37d652f33d34c32dbd26f5fcca08291c7eef4a97d8a5d2a6794a14a130d41ae2", kill_on_drop: false }` [INFO] [stderr] Checking wasmparser v0.57.0 [INFO] [stderr] Checking typed-arena v2.0.2 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking object v0.23.0 [INFO] [stderr] Checking ddbug_parser v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/file/mod.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `gimli` is imported redundantly [INFO] [stdout] --> src/file/dwarf.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use gimli; [INFO] [stdout] | ^^^^^ the item `gimli` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `object` is imported redundantly [INFO] [stdout] --> src/file/dwarf.rs:10:14 [INFO] [stdout] | [INFO] [stdout] 10 | use object::{self, ObjectSection, ObjectSymbol}; [INFO] [stdout] | ^^^^ the item `object` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `gimli` is imported redundantly [INFO] [stdout] --> src/file/mod.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use gimli; [INFO] [stdout] | ^^^^^ the item `gimli` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `memmap` is imported redundantly [INFO] [stdout] --> src/file/mod.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use memmap; [INFO] [stdout] | ^^^^^^ the item `memmap` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `object` is imported redundantly [INFO] [stdout] --> src/file/mod.rs:11:14 [INFO] [stdout] | [INFO] [stdout] 11 | use object::{self, Object, ObjectSection, ObjectSegment, ObjectSymbol, ObjectSymbolTable}; [INFO] [stdout] | ^^^^ the item `object` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `gimli` is imported redundantly [INFO] [stdout] --> src/unit.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use gimli; [INFO] [stdout] | ^^^^^ the item `gimli` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Default` is imported redundantly [INFO] [stdout] --> src/file/mod.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::default::Default; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Default` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `gimli` is imported redundantly [INFO] [stdout] --> src/file/dwarf.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use gimli; [INFO] [stdout] | ^^^^^ the item `gimli` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `object` is imported redundantly [INFO] [stdout] --> src/file/dwarf.rs:10:14 [INFO] [stdout] | [INFO] [stdout] 10 | use object::{self, ObjectSection, ObjectSymbol}; [INFO] [stdout] | ^^^^ the item `object` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `gimli` is imported redundantly [INFO] [stdout] --> src/file/mod.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use gimli; [INFO] [stdout] | ^^^^^ the item `gimli` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `memmap` is imported redundantly [INFO] [stdout] --> src/file/mod.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use memmap; [INFO] [stdout] | ^^^^^^ the item `memmap` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `object` is imported redundantly [INFO] [stdout] --> src/file/mod.rs:11:14 [INFO] [stdout] | [INFO] [stdout] 11 | use object::{self, Object, ObjectSection, ObjectSegment, ObjectSymbol, ObjectSymbolTable}; [INFO] [stdout] | ^^^^ the item `object` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `gimli` is imported redundantly [INFO] [stdout] --> src/unit.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use gimli; [INFO] [stdout] | ^^^^^ the item `gimli` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `discr` is never read [INFO] [stdout] --> src/types.rs:808:16 [INFO] [stdout] | [INFO] [stdout] 807 | pub struct Variant<'input> { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 808 | pub(crate) discr: MemberOffset, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Variant` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `discr` is never read [INFO] [stdout] --> src/types.rs:808:16 [INFO] [stdout] | [INFO] [stdout] 807 | pub struct Variant<'input> { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 808 | pub(crate) discr: MemberOffset, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Variant` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.19s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasmparser v0.57.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "37d652f33d34c32dbd26f5fcca08291c7eef4a97d8a5d2a6794a14a130d41ae2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "37d652f33d34c32dbd26f5fcca08291c7eef4a97d8a5d2a6794a14a130d41ae2", kill_on_drop: false }` [INFO] [stdout] 37d652f33d34c32dbd26f5fcca08291c7eef4a97d8a5d2a6794a14a130d41ae2