[INFO] cloning repository https://github.com/ryanblock/lambda-rust-issue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryanblock/lambda-rust-issue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanblock%2Flambda-rust-issue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanblock%2Flambda-rust-issue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4e033c25683b5e5b57c08085744226ec40ab54f
[INFO] checking ryanblock/lambda-rust-issue against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanblock%2Flambda-rust-issue" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanblock/lambda-rust-issue 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 git repo https://github.com/ryanblock/lambda-rust-issue
[INFO] finished tweaking git repo https://github.com/ryanblock/lambda-rust-issue
[INFO] tweaked toml for git repo https://github.com/ryanblock/lambda-rust-issue written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanblock/lambda-rust-issue 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 lambda_runtime v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ef1d3fbceccd5c26c7c8dfa5562a89be14286549162ccd5f7847817bce9e1fcc
[INFO] running `Command { std: "docker" "start" "-a" "ef1d3fbceccd5c26c7c8dfa5562a89be14286549162ccd5f7847817bce9e1fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef1d3fbceccd5c26c7c8dfa5562a89be14286549162ccd5f7847817bce9e1fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef1d3fbceccd5c26c7c8dfa5562a89be14286549162ccd5f7847817bce9e1fcc", kill_on_drop: false }`
[INFO] [stdout] ef1d3fbceccd5c26c7c8dfa5562a89be14286549162ccd5f7847817bce9e1fcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4228ac81dbdcc5d6f14cd8662423c234434c0b74b5cd9f1e6039c34c92571556
[INFO] running `Command { std: "docker" "start" "-a" "4228ac81dbdcc5d6f14cd8662423c234434c0b74b5cd9f1e6039c34c92571556", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling time-macros v0.2.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking http v0.2.5
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking time v0.3.5
[INFO] [stderr]     Checking simple_logger v1.16.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking tracing-error v0.1.2
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]     Checking hyper v0.14.16
[INFO] [stderr]     Checking futures v0.3.19
[INFO] [stderr]     Checking lambda_runtime v0.4.1
[INFO] [stderr]     Checking handler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.03s
[INFO] running `Command { std: "docker" "inspect" "4228ac81dbdcc5d6f14cd8662423c234434c0b74b5cd9f1e6039c34c92571556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4228ac81dbdcc5d6f14cd8662423c234434c0b74b5cd9f1e6039c34c92571556", kill_on_drop: false }`
[INFO] [stdout] 4228ac81dbdcc5d6f14cd8662423c234434c0b74b5cd9f1e6039c34c92571556
[INFO] checking ryanblock/lambda-rust-issue against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanblock%2Flambda-rust-issue" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanblock/lambda-rust-issue 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 git repo https://github.com/ryanblock/lambda-rust-issue
[INFO] finished tweaking git repo https://github.com/ryanblock/lambda-rust-issue
[INFO] tweaked toml for git repo https://github.com/ryanblock/lambda-rust-issue written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanblock/lambda-rust-issue 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8290b33c460e2818df3a808a73bb81316a7448090df3a1b42b64b78e3b9e2359
[INFO] running `Command { std: "docker" "start" "-a" "8290b33c460e2818df3a808a73bb81316a7448090df3a1b42b64b78e3b9e2359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8290b33c460e2818df3a808a73bb81316a7448090df3a1b42b64b78e3b9e2359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8290b33c460e2818df3a808a73bb81316a7448090df3a1b42b64b78e3b9e2359", kill_on_drop: false }`
[INFO] [stdout] 8290b33c460e2818df3a808a73bb81316a7448090df3a1b42b64b78e3b9e2359
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 53bb56255510edf4087cb39fab6ca882056202f4230a20a257403cf49d11e04d
[INFO] running `Command { std: "docker" "start" "-a" "53bb56255510edf4087cb39fab6ca882056202f4230a20a257403cf49d11e04d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling time-macros v0.2.3
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking http v0.2.5
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking time v0.3.5
[INFO] [stderr]     Checking simple_logger v1.16.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]     Checking tokio v1.15.0
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking tracing-error v0.1.2
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]     Checking hyper v0.14.16
[INFO] [stderr]     Checking futures v0.3.19
[INFO] [stderr]     Checking lambda_runtime v0.4.1
[INFO] [stderr]     Checking handler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.06s
[INFO] running `Command { std: "docker" "inspect" "53bb56255510edf4087cb39fab6ca882056202f4230a20a257403cf49d11e04d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53bb56255510edf4087cb39fab6ca882056202f4230a20a257403cf49d11e04d", kill_on_drop: false }`
[INFO] [stdout] 53bb56255510edf4087cb39fab6ca882056202f4230a20a257403cf49d11e04d