[INFO] cloning repository https://github.com/yashlondhe90960/Async-Await-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yashlondhe90960/Async-Await-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyashlondhe90960%2FAsync-Await-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyashlondhe90960%2FAsync-Await-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f23d58429691a85f6c9e382cec2470f45affdddb
[INFO] checking yashlondhe90960/Async-Await-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyashlondhe90960%2FAsync-Await-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yashlondhe90960/Async-Await-rust 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/yashlondhe90960/Async-Await-rust
[INFO] finished tweaking git repo https://github.com/yashlondhe90960/Async-Await-rust
[INFO] tweaked toml for git repo https://github.com/yashlondhe90960/Async-Await-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yashlondhe90960/Async-Await-rust 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] 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] 431a3eb8b41d509afeb8d8142da69ff2b21a588411a2e43f08d6b1228d7d1c51
[INFO] running `Command { std: "docker" "start" "-a" "431a3eb8b41d509afeb8d8142da69ff2b21a588411a2e43f08d6b1228d7d1c51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "431a3eb8b41d509afeb8d8142da69ff2b21a588411a2e43f08d6b1228d7d1c51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "431a3eb8b41d509afeb8d8142da69ff2b21a588411a2e43f08d6b1228d7d1c51", kill_on_drop: false }`
[INFO] [stdout] 431a3eb8b41d509afeb8d8142da69ff2b21a588411a2e43f08d6b1228d7d1c51
[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] ae57879e15fde34c09c60c0e71485a989c71774c3cc82a5924387c16c07504d9
[INFO] running `Command { std: "docker" "start" "-a" "ae57879e15fde34c09c60c0e71485a989c71774c3cc82a5924387c16c07504d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling openssl v0.10.55
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]    Compiling serde_json v1.0.102
[INFO] [stderr]     Checking gimli v0.27.3
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking ipnet v2.8.0
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking addr2line v0.20.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v1.1.2
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking pin-project v1.1.2
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking async-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.04s
[INFO] running `Command { std: "docker" "inspect" "ae57879e15fde34c09c60c0e71485a989c71774c3cc82a5924387c16c07504d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae57879e15fde34c09c60c0e71485a989c71774c3cc82a5924387c16c07504d9", kill_on_drop: false }`
[INFO] [stdout] ae57879e15fde34c09c60c0e71485a989c71774c3cc82a5924387c16c07504d9
[INFO] checking yashlondhe90960/Async-Await-rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyashlondhe90960%2FAsync-Await-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yashlondhe90960/Async-Await-rust 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/yashlondhe90960/Async-Await-rust
[INFO] finished tweaking git repo https://github.com/yashlondhe90960/Async-Await-rust
[INFO] tweaked toml for git repo https://github.com/yashlondhe90960/Async-Await-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yashlondhe90960/Async-Await-rust 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-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] d1454eed41205487bcecdf1050f71e8fa8fae93ddac24b26b81737a34a553eaf
[INFO] running `Command { std: "docker" "start" "-a" "d1454eed41205487bcecdf1050f71e8fa8fae93ddac24b26b81737a34a553eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1454eed41205487bcecdf1050f71e8fa8fae93ddac24b26b81737a34a553eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1454eed41205487bcecdf1050f71e8fa8fae93ddac24b26b81737a34a553eaf", kill_on_drop: false }`
[INFO] [stdout] d1454eed41205487bcecdf1050f71e8fa8fae93ddac24b26b81737a34a553eaf
[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] 0c2773854cc154f829d51c57845ab872e2f8f43e4cddeca8a85bf49455d8445e
[INFO] running `Command { std: "docker" "start" "-a" "0c2773854cc154f829d51c57845ab872e2f8f43e4cddeca8a85bf49455d8445e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking pin-project-lite v0.1.12
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[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling openssl v0.10.55
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling serde_json v1.0.102
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking gimli v0.27.3
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking ipnet v2.8.0
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]    Compiling syn v2.0.26
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking addr2line v0.20.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling pin-project-internal v1.1.2
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]     Checking tokio v0.2.25
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[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking async-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.08s
[INFO] running `Command { std: "docker" "inspect" "0c2773854cc154f829d51c57845ab872e2f8f43e4cddeca8a85bf49455d8445e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c2773854cc154f829d51c57845ab872e2f8f43e4cddeca8a85bf49455d8445e", kill_on_drop: false }`
[INFO] [stdout] 0c2773854cc154f829d51c57845ab872e2f8f43e4cddeca8a85bf49455d8445e