[INFO] cloning repository https://github.com/jakeisnt/wasm-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakeisnt/wasm-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeisnt%2Fwasm-experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeisnt%2Fwasm-experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] edfcc812d25395c00468bfd7a527b8ba1dd13803
[INFO] checking jakeisnt/wasm-experiments against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeisnt%2Fwasm-experiments" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakeisnt/wasm-experiments 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] removed /workspace/builds/worker-1-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/jakeisnt/wasm-experiments
[INFO] finished tweaking git repo https://github.com/jakeisnt/wasm-experiments
[INFO] tweaked toml for git repo https://github.com/jakeisnt/wasm-experiments written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jakeisnt/wasm-experiments 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.22
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a952b763a490db7a9f633caa14667e30cf157ed706c7804d3d8a934e82eddef8
[INFO] running `Command { std: "docker" "start" "-a" "a952b763a490db7a9f633caa14667e30cf157ed706c7804d3d8a934e82eddef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a952b763a490db7a9f633caa14667e30cf157ed706c7804d3d8a934e82eddef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a952b763a490db7a9f633caa14667e30cf157ed706c7804d3d8a934e82eddef8", kill_on_drop: false }`
[INFO] [stdout] a952b763a490db7a9f633caa14667e30cf157ed706c7804d3d8a934e82eddef8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 53da763d7af0cca0eb25028c2e8b524516ede69947aa33740b39422d2d2441e6
[INFO] running `Command { std: "docker" "start" "-a" "53da763d7af0cca0eb25028c2e8b524516ede69947aa33740b39422d2d2441e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.72
[INFO] [stderr]    Compiling bumpalo v3.6.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.72
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.22
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.72
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.72
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.72
[INFO] [stderr]     Checking js-sys v0.3.49
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.22
[INFO] [stderr]     Checking wasm-game-of-life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.22
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.38s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.72
[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" "53da763d7af0cca0eb25028c2e8b524516ede69947aa33740b39422d2d2441e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53da763d7af0cca0eb25028c2e8b524516ede69947aa33740b39422d2d2441e6", kill_on_drop: false }`
[INFO] [stdout] 53da763d7af0cca0eb25028c2e8b524516ede69947aa33740b39422d2d2441e6
[INFO] checking jakeisnt/wasm-experiments against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakeisnt%2Fwasm-experiments" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jakeisnt/wasm-experiments 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] removed /workspace/builds/worker-1-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/jakeisnt/wasm-experiments
[INFO] finished tweaking git repo https://github.com/jakeisnt/wasm-experiments
[INFO] tweaked toml for git repo https://github.com/jakeisnt/wasm-experiments written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jakeisnt/wasm-experiments 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 38d95c6d46785f89549ed3f16ce1a443eb706729349728b0bc002428aec22fd4
[INFO] running `Command { std: "docker" "start" "-a" "38d95c6d46785f89549ed3f16ce1a443eb706729349728b0bc002428aec22fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38d95c6d46785f89549ed3f16ce1a443eb706729349728b0bc002428aec22fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38d95c6d46785f89549ed3f16ce1a443eb706729349728b0bc002428aec22fd4", kill_on_drop: false }`
[INFO] [stdout] 38d95c6d46785f89549ed3f16ce1a443eb706729349728b0bc002428aec22fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 83dedefe6404d584f6df48e85953887af47056d8749db8e9dbd9d71a1adc7a68
[INFO] running `Command { std: "docker" "start" "-a" "83dedefe6404d584f6df48e85953887af47056d8749db8e9dbd9d71a1adc7a68", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bumpalo v3.6.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.72
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.22
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.72
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.72
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.72
[INFO] [stderr]     Checking js-sys v0.3.49
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.22
[INFO] [stderr]     Checking wasm-game-of-life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.22
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.75s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.72
[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" "83dedefe6404d584f6df48e85953887af47056d8749db8e9dbd9d71a1adc7a68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83dedefe6404d584f6df48e85953887af47056d8749db8e9dbd9d71a1adc7a68", kill_on_drop: false }`
[INFO] [stdout] 83dedefe6404d584f6df48e85953887af47056d8749db8e9dbd9d71a1adc7a68