[INFO] fetching crate r2d2_arangors 0.2.3...
[INFO] checking r2d2_arangors-0.2.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate r2d2_arangors 0.2.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate r2d2_arangors 0.2.3 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 r2d2_arangors 0.2.3
[INFO] finished tweaking crates.io crate r2d2_arangors 0.2.3
[INFO] tweaked toml for crates.io crate r2d2_arangors 0.2.3 written to /workspace/builds/worker-0-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 144 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
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[INFO] [stderr]       Adding typed-builder v0.10.0 (latest: v0.18.1)
[INFO] [stderr]       Adding uclient v0.1.3 (latest: v0.2.3)
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[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
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[INFO] [stderr]       Adding winreg v0.50.0 (latest: v0.52.0)
[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 uclient v0.1.3
[INFO] [stderr]   Downloaded arangors v0.5.4
[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] 3196dd436d986fe2ce7990a8a64b5299ce65d742886e46c40e57483326f7f733
[INFO] running `Command { std: "docker" "start" "-a" "3196dd436d986fe2ce7990a8a64b5299ce65d742886e46c40e57483326f7f733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3196dd436d986fe2ce7990a8a64b5299ce65d742886e46c40e57483326f7f733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3196dd436d986fe2ce7990a8a64b5299ce65d742886e46c40e57483326f7f733", kill_on_drop: false }`
[INFO] [stdout] 3196dd436d986fe2ce7990a8a64b5299ce65d742886e46c40e57483326f7f733
[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] 824141d61f9c1861d48b446a85356bae205f632238110dfe740776c4548e188c
[INFO] running `Command { std: "docker" "start" "-a" "824141d61f9c1861d48b446a85356bae205f632238110dfe740776c4548e188c", kill_on_drop: false }`
[INFO] [stderr]     Checking openssl-sys v0.9.102
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling maybe-async v0.2.10
[INFO] [stderr]    Compiling typed-builder v0.10.0
[INFO] [stderr]     Checking serde_qs v0.10.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.7
[INFO] [stderr]     Checking r2d2 v0.8.10
[INFO] [stderr]     Checking openssl v0.10.64
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking async-compression v0.4.8
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking uclient v0.1.3
[INFO] [stderr]     Checking arangors v0.5.4
[INFO] [stderr]     Checking r2d2_arangors v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]  --> src/pool.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use r2d2;
[INFO] [stdout]   |     ^^^^ the item `r2d2` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/pool.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::result::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]  --> src/pool.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use r2d2;
[INFO] [stdout]   |     ^^^^ the item `r2d2` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/pool.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::result::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.75s
[INFO] running `Command { std: "docker" "inspect" "824141d61f9c1861d48b446a85356bae205f632238110dfe740776c4548e188c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "824141d61f9c1861d48b446a85356bae205f632238110dfe740776c4548e188c", kill_on_drop: false }`
[INFO] [stdout] 824141d61f9c1861d48b446a85356bae205f632238110dfe740776c4548e188c
[INFO] checking r2d2_arangors-0.2.3 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate r2d2_arangors 0.2.3 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate r2d2_arangors 0.2.3 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 r2d2_arangors 0.2.3
[INFO] finished tweaking crates.io crate r2d2_arangors 0.2.3
[INFO] tweaked toml for crates.io crate r2d2_arangors 0.2.3 written to /workspace/builds/worker-0-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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 9c5200bef992bba97b90a4e95ac9534620f12da9fd746895bbccf416df5dcc1f
[INFO] running `Command { std: "docker" "start" "-a" "9c5200bef992bba97b90a4e95ac9534620f12da9fd746895bbccf416df5dcc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c5200bef992bba97b90a4e95ac9534620f12da9fd746895bbccf416df5dcc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c5200bef992bba97b90a4e95ac9534620f12da9fd746895bbccf416df5dcc1f", kill_on_drop: false }`
[INFO] [stdout] 9c5200bef992bba97b90a4e95ac9534620f12da9fd746895bbccf416df5dcc1f
[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] 692da094a6975aa990f4ae2c616dec36223b1d7f960f5b990ba70d38d1598613
[INFO] running `Command { std: "docker" "start" "-a" "692da094a6975aa990f4ae2c616dec36223b1d7f960f5b990ba70d38d1598613", kill_on_drop: false }`
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking openssl-sys v0.9.102
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]    Compiling maybe-async v0.2.10
[INFO] [stderr]    Compiling typed-builder v0.10.0
[INFO] [stderr]     Checking serde_qs v0.10.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.7
[INFO] [stderr]     Checking r2d2 v0.8.10
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking openssl v0.10.64
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking async-compression v0.4.8
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hyper v0.14.28
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking uclient v0.1.3
[INFO] [stderr]     Checking arangors v0.5.4
[INFO] [stderr]     Checking r2d2_arangors v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]  --> src/pool.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use r2d2;
[INFO] [stdout]   |     ^^^^ the item `r2d2` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/pool.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::result::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]  --> src/pool.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use r2d2;
[INFO] [stdout]   |     ^^^^ the item `r2d2` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/pool.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::result::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.19s
[INFO] running `Command { std: "docker" "inspect" "692da094a6975aa990f4ae2c616dec36223b1d7f960f5b990ba70d38d1598613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "692da094a6975aa990f4ae2c616dec36223b1d7f960f5b990ba70d38d1598613", kill_on_drop: false }`
[INFO] [stdout] 692da094a6975aa990f4ae2c616dec36223b1d7f960f5b990ba70d38d1598613