[INFO] fetching crate prusti-specs 0.2.0...
[INFO] checking prusti-specs-0.2.0 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate prusti-specs 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate prusti-specs 0.2.0 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prusti-specs 0.2.0
[INFO] finished tweaking crates.io crate prusti-specs 0.2.0
[INFO] tweaked toml for crates.io crate prusti-specs 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.11.0 (available: v0.13.0)
[INFO] [stderr]       Adding rustc-hash v1.1.0 (available: v2.0.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.77)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c707747c1a55cb07de36d80e77994d8f929d4ceab1621683eef2f5aa56d03a16
[INFO] running `Command { std: "docker" "start" "-a" "c707747c1a55cb07de36d80e77994d8f929d4ceab1621683eef2f5aa56d03a16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c707747c1a55cb07de36d80e77994d8f929d4ceab1621683eef2f5aa56d03a16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c707747c1a55cb07de36d80e77994d8f929d4ceab1621683eef2f5aa56d03a16", kill_on_drop: false }`
[INFO] [stdout] c707747c1a55cb07de36d80e77994d8f929d4ceab1621683eef2f5aa56d03a16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ad7a32bea9c8f0ddd0b78d88db60932adc18bfa176e39abd26946489279b07f
[INFO] running `Command { std: "docker" "start" "-a" "6ad7a32bea9c8f0ddd0b78d88db60932adc18bfa176e39abd26946489279b07f", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.13
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking uuid v1.10.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking prusti-specs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `sig_mut` is never used
[INFO] [stdout]   --> src/common.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub(crate) trait HasSignature {
[INFO] [stdout]    |                      ------------ method in this trait
[INFO] [stdout] 64 |         fn sig(&self) -> &Signature;
[INFO] [stdout] 65 |         fn sig_mut(&mut self) -> &mut Signature;
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/specifications/preparser.rs:652:20
[INFO] [stdout]     |
[INFO] [stdout] 652 |     CallDesc(Span, bool),
[INFO] [stdout]     |     --------       ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrustiToken` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 652 |     CallDesc(Span, ()),
[INFO] [stdout]     |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sig_mut` is never used
[INFO] [stdout]   --> src/common.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub(crate) trait HasSignature {
[INFO] [stdout]    |                      ------------ method in this trait
[INFO] [stdout] 64 |         fn sig(&self) -> &Signature;
[INFO] [stdout] 65 |         fn sig_mut(&mut self) -> &mut Signature;
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/specifications/preparser.rs:652:20
[INFO] [stdout]     |
[INFO] [stdout] 652 |     CallDesc(Span, bool),
[INFO] [stdout]     |     --------       ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrustiToken` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 652 |     CallDesc(Span, ()),
[INFO] [stdout]     |                    ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.48s
[INFO] running `Command { std: "docker" "inspect" "6ad7a32bea9c8f0ddd0b78d88db60932adc18bfa176e39abd26946489279b07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad7a32bea9c8f0ddd0b78d88db60932adc18bfa176e39abd26946489279b07f", kill_on_drop: false }`
[INFO] [stdout] 6ad7a32bea9c8f0ddd0b78d88db60932adc18bfa176e39abd26946489279b07f