[INFO] fetching crate monkey-wasm 0.9.1...
[INFO] checking monkey-wasm-0.9.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate monkey-wasm 0.9.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate monkey-wasm 0.9.1 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 monkey-wasm 0.9.1
[INFO] finished tweaking crates.io crate monkey-wasm 0.9.1
[INFO] tweaked toml for crates.io crate monkey-wasm 0.9.1 written to /workspace/builds/worker-1-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 44 packages
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding strum v0.24.1 (latest: v0.26.2)
[INFO] [stderr]       Adding strum_macros v0.24.3 (latest: v0.26.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[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 monkey-lexer v0.9.1
[INFO] [stderr]   Downloaded monkey-parser v0.9.1
[INFO] [stderr]   Downloaded monkey-object v0.9.1
[INFO] [stderr]   Downloaded monkey-compiler v0.9.1
[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] a8ceed2c31afd498f1ebfa3066ddaaddfbf87c7a6fca4e956974426e2cb3c1ea
[INFO] running `Command { std: "docker" "start" "-a" "a8ceed2c31afd498f1ebfa3066ddaaddfbf87c7a6fca4e956974426e2cb3c1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8ceed2c31afd498f1ebfa3066ddaaddfbf87c7a6fca4e956974426e2cb3c1ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8ceed2c31afd498f1ebfa3066ddaaddfbf87c7a6fca4e956974426e2cb3c1ea", kill_on_drop: false }`
[INFO] [stdout] a8ceed2c31afd498f1ebfa3066ddaaddfbf87c7a6fca4e956974426e2cb3c1ea
[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] e8696572eb9f0545778119105fddf6ff8e7b6a7cb4a0c4eaca40375aeba2b5ea
[INFO] running `Command { std: "docker" "start" "-a" "e8696572eb9f0545778119105fddf6ff8e7b6a7cb4a0c4eaca40375aeba2b5ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.42
[INFO] [stderr]     Checking monkey-lexer v0.9.1
[INFO] [stderr]     Checking monkey-parser v0.9.1
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.42
[INFO] [stderr]     Checking monkey-object v0.9.1
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking monkey-compiler v0.9.1
[INFO] [stderr]     Checking monkey-wasm v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.85s
[INFO] running `Command { std: "docker" "inspect" "e8696572eb9f0545778119105fddf6ff8e7b6a7cb4a0c4eaca40375aeba2b5ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8696572eb9f0545778119105fddf6ff8e7b6a7cb4a0c4eaca40375aeba2b5ea", kill_on_drop: false }`
[INFO] [stdout] e8696572eb9f0545778119105fddf6ff8e7b6a7cb4a0c4eaca40375aeba2b5ea
[INFO] checking monkey-wasm-0.9.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate monkey-wasm 0.9.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate monkey-wasm 0.9.1 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 monkey-wasm 0.9.1
[INFO] finished tweaking crates.io crate monkey-wasm 0.9.1
[INFO] tweaked toml for crates.io crate monkey-wasm 0.9.1 written to /workspace/builds/worker-1-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-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] a216fb5eefe857b50d26cbe2b572e3e67c8e112c8ee64465b6f68c1caf018248
[INFO] running `Command { std: "docker" "start" "-a" "a216fb5eefe857b50d26cbe2b572e3e67c8e112c8ee64465b6f68c1caf018248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a216fb5eefe857b50d26cbe2b572e3e67c8e112c8ee64465b6f68c1caf018248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a216fb5eefe857b50d26cbe2b572e3e67c8e112c8ee64465b6f68c1caf018248", kill_on_drop: false }`
[INFO] [stdout] a216fb5eefe857b50d26cbe2b572e3e67c8e112c8ee64465b6f68c1caf018248
[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] 60ddc765dbc06f655e4baba7c7c9ff207835dcc97a10ca5c68eee76dc9643a4f
[INFO] running `Command { std: "docker" "start" "-a" "60ddc765dbc06f655e4baba7c7c9ff207835dcc97a10ca5c68eee76dc9643a4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.42
[INFO] [stderr]     Checking monkey-lexer v0.9.1
[INFO] [stderr]     Checking monkey-parser v0.9.1
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.42
[INFO] [stderr]     Checking monkey-object v0.9.1
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking monkey-compiler v0.9.1
[INFO] [stderr]     Checking monkey-wasm v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.21s
[INFO] running `Command { std: "docker" "inspect" "60ddc765dbc06f655e4baba7c7c9ff207835dcc97a10ca5c68eee76dc9643a4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60ddc765dbc06f655e4baba7c7c9ff207835dcc97a10ca5c68eee76dc9643a4f", kill_on_drop: false }`
[INFO] [stdout] 60ddc765dbc06f655e4baba7c7c9ff207835dcc97a10ca5c68eee76dc9643a4f