[INFO] fetching crate tc-executor-wasmtime 0.8.0...
[INFO] checking tc-executor-wasmtime-0.8.0 against master#6d05c430d2f0573bf98320bb1d2457a72ea1e67f for pr-116607
[INFO] extracting crate tc-executor-wasmtime 0.8.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate tc-executor-wasmtime 0.8.0 on toolchain 6d05c430d2f0573bf98320bb1d2457a72ea1e67f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tc-executor-wasmtime 0.8.0
[INFO] finished tweaking crates.io crate tc-executor-wasmtime 0.8.0
[INFO] tweaked toml for crates.io crate tc-executor-wasmtime 0.8.0 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" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasmtime-jit v0.19.0
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.66.0
[INFO] [stderr]   Downloaded wasmparser v0.59.0
[INFO] [stderr]   Downloaded tp-allocator v2.1.2
[INFO] [stderr]   Downloaded wasmtime-profiling v0.19.0
[INFO] [stderr]   Downloaded cranelift-entity v0.66.0
[INFO] [stderr]   Downloaded wasmtime-environ v0.19.0
[INFO] [stderr]   Downloaded zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]   Downloaded cranelift-native v0.66.0
[INFO] [stderr]   Downloaded serializer v2.1.2
[INFO] [stderr]   Downloaded target-lexicon v0.10.0
[INFO] [stderr]   Downloaded zstd v0.5.4+zstd.1.4.7
[INFO] [stderr]   Downloaded cranelift-bforest v0.66.0
[INFO] [stderr]   Downloaded raw-cpuid v7.0.4
[INFO] [stderr]   Downloaded twasm-utils v0.16.0
[INFO] [stderr]   Downloaded wasmparser v0.57.0
[INFO] [stderr]   Downloaded wasmtime v0.19.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.66.0
[INFO] [stderr]   Downloaded wasmtime-debug v0.19.0
[INFO] [stderr]   Downloaded region v2.2.0
[INFO] [stderr]   Downloaded regalloc v0.0.27
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.66.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.66.0
[INFO] [stderr]   Downloaded zstd-sys v1.4.18+zstd.1.4.7
[INFO] [stderr]   Downloaded tc-executor-common v0.8.0
[INFO] [stderr]   Downloaded wasmtime-runtime v0.19.0
[INFO] [stderr]   Downloaded cranelift-wasm v0.66.0
[INFO] [stderr]   Downloaded wasmtime-obj v0.19.0
[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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6a2393497dbc755c0d8c844cfe27145353b2f04c0deedc738a7f281126f2778
[INFO] running `Command { std: "docker" "start" "-a" "c6a2393497dbc755c0d8c844cfe27145353b2f04c0deedc738a7f281126f2778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6a2393497dbc755c0d8c844cfe27145353b2f04c0deedc738a7f281126f2778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a2393497dbc755c0d8c844cfe27145353b2f04c0deedc738a7f281126f2778", kill_on_drop: false }`
[INFO] [stdout] c6a2393497dbc755c0d8c844cfe27145353b2f04c0deedc738a7f281126f2778
[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=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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e1b9c946b794404f4b12d299fb2d949e87fb08798570be247c1a6d1217bcbc2
[INFO] running `Command { std: "docker" "start" "-a" "3e1b9c946b794404f4b12d299fb2d949e87fb08798570be247c1a6d1217bcbc2", kill_on_drop: false }`
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[INFO] [stderr]     Checking tetcore-wasm-interface v2.1.2
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[INFO] [stderr]    Compiling cranelift-codegen v0.66.0
[INFO] [stderr]     Checking tet-core v2.1.2
[INFO] [stderr]     Checking wat v1.0.77
[INFO] [stderr]     Checking tp-allocator v2.1.2
[INFO] [stderr]     Checking tc-executor-common v0.8.0
[INFO] [stderr]     Checking cranelift-frontend v0.66.0
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[INFO] [stderr]     Checking cranelift-wasm v0.66.0
[INFO] [stderr]     Checking zstd v0.5.4+zstd.1.4.7
[INFO] [stderr]     Checking wasmtime-debug v0.19.0
[INFO] [stderr]     Checking wasmtime-profiling v0.19.0
[INFO] [stderr]     Checking wasmtime-obj v0.19.0
[INFO] [stderr]     Checking wasmtime-jit v0.19.0
[INFO] [stderr]     Checking wasmtime v0.19.0
[INFO] [stderr]     Checking tc-executor-wasmtime v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/instance_wrapper.rs:388:4
[INFO] [stdout]     |
[INFO] [stdout] 388 |             &mut memory[range].copy_from_slice(data);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 388 |             let _ = &mut memory[range].copy_from_slice(data);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/instance_wrapper.rs:388:4
[INFO] [stdout]     |
[INFO] [stdout] 388 |             &mut memory[range].copy_from_slice(data);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 388 |             let _ = &mut memory[range].copy_from_slice(data);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.06s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.66.0, wasmparser v0.57.0, wasmparser v0.59.0, wasmtime-debug v0.19.0, wasmtime-environ v0.19.0
[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" "3e1b9c946b794404f4b12d299fb2d949e87fb08798570be247c1a6d1217bcbc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e1b9c946b794404f4b12d299fb2d949e87fb08798570be247c1a6d1217bcbc2", kill_on_drop: false }`
[INFO] [stdout] 3e1b9c946b794404f4b12d299fb2d949e87fb08798570be247c1a6d1217bcbc2