[INFO] fetching crate warp-contracts-core 0.1.3...
[INFO] checking warp-contracts-core-0.1.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate warp-contracts-core 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate warp-contracts-core 0.1.3 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 warp-contracts-core 0.1.3
[INFO] finished tweaking crates.io crate warp-contracts-core 0.1.3
[INFO] tweaked toml for crates.io crate warp-contracts-core 0.1.3 written to /workspace/builds/worker-4-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]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages
[INFO] [stderr]       Adding js-sys v0.3.61 (latest: v0.3.69)
[INFO] [stderr]       Adding serde-wasm-bindgen v0.5.0 (latest: v0.6.5)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasm-bindgen v0.2.84 (latest: v0.2.92)
[INFO] [stderr]       Adding wasm-bindgen-backend v0.2.84 (latest: v0.2.92)
[INFO] [stderr]       Adding wasm-bindgen-futures v0.4.34 (latest: v0.4.42)
[INFO] [stderr]       Adding wasm-bindgen-macro v0.2.84 (latest: v0.2.92)
[INFO] [stderr]       Adding wasm-bindgen-macro-support v0.2.84 (latest: v0.2.92)
[INFO] [stderr]       Adding wasm-bindgen-shared v0.2.84 (latest: v0.2.92)
[INFO] [stderr]       Adding web-sys v0.3.61 (latest: v0.3.69)
[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 wasm-bindgen-macro v0.2.84
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.84
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.84
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.84
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.34
[INFO] [stderr]   Downloaded js-sys v0.3.61
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.84
[INFO] [stderr]   Downloaded web-sys v0.3.61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a449e7b80eb2b7f84e1a96509066cce116d4c097be6c7170775d4d22e5982d6e
[INFO] running `Command { std: "docker" "start" "-a" "a449e7b80eb2b7f84e1a96509066cce116d4c097be6c7170775d4d22e5982d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a449e7b80eb2b7f84e1a96509066cce116d4c097be6c7170775d4d22e5982d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a449e7b80eb2b7f84e1a96509066cce116d4c097be6c7170775d4d22e5982d6e", kill_on_drop: false }`
[INFO] [stdout] a449e7b80eb2b7f84e1a96509066cce116d4c097be6c7170775d4d22e5982d6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c9ca10d887d4b239fe23c29d8233365129b0a4e8e1be5a365a6db79875d7e5c7
[INFO] running `Command { std: "docker" "start" "-a" "c9ca10d887d4b239fe23c29d8233365129b0a4e8e1be5a365a6db79875d7e5c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.84
[INFO] [stderr]    Compiling wasm-bindgen v0.2.84
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.84
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.84
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.84
[INFO] [stderr]     Checking js-sys v0.3.61
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.34
[INFO] [stderr]     Checking serde-wasm-bindgen v0.5.0
[INFO] [stderr]     Checking warp-contracts-core v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.64s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.84
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "c9ca10d887d4b239fe23c29d8233365129b0a4e8e1be5a365a6db79875d7e5c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ca10d887d4b239fe23c29d8233365129b0a4e8e1be5a365a6db79875d7e5c7", kill_on_drop: false }`
[INFO] [stdout] c9ca10d887d4b239fe23c29d8233365129b0a4e8e1be5a365a6db79875d7e5c7
[INFO] checking warp-contracts-core-0.1.3 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate warp-contracts-core 0.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate warp-contracts-core 0.1.3 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate warp-contracts-core 0.1.3
[INFO] finished tweaking crates.io crate warp-contracts-core 0.1.3
[INFO] tweaked toml for crates.io crate warp-contracts-core 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e6bbd491a6927f86ec03ee065e93593170145ead4d755197956a2bd8e559bfe
[INFO] running `Command { std: "docker" "start" "-a" "1e6bbd491a6927f86ec03ee065e93593170145ead4d755197956a2bd8e559bfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e6bbd491a6927f86ec03ee065e93593170145ead4d755197956a2bd8e559bfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e6bbd491a6927f86ec03ee065e93593170145ead4d755197956a2bd8e559bfe", kill_on_drop: false }`
[INFO] [stdout] 1e6bbd491a6927f86ec03ee065e93593170145ead4d755197956a2bd8e559bfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73f0b1457b37a8453ee7cb60e91317b8718608f93bd8466c2ce382955a5297cc
[INFO] running `Command { std: "docker" "start" "-a" "73f0b1457b37a8453ee7cb60e91317b8718608f93bd8466c2ce382955a5297cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.84
[INFO] [stderr]    Compiling wasm-bindgen v0.2.84
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.84
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.84
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.84
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking js-sys v0.3.61
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.34
[INFO] [stderr]     Checking serde-wasm-bindgen v0.5.0
[INFO] [stderr]     Checking warp-contracts-core v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.77s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.84
[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" "73f0b1457b37a8453ee7cb60e91317b8718608f93bd8466c2ce382955a5297cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f0b1457b37a8453ee7cb60e91317b8718608f93bd8466c2ce382955a5297cc", kill_on_drop: false }`
[INFO] [stdout] 73f0b1457b37a8453ee7cb60e91317b8718608f93bd8466c2ce382955a5297cc