[INFO] fetching crate memedb_api 0.1.0...
[INFO] checking memedb_api-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate memedb_api 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate memedb_api 0.1.0 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 memedb_api 0.1.0
[INFO] finished tweaking crates.io crate memedb_api 0.1.0
[INFO] tweaked toml for crates.io crate memedb_api 0.1.0 written to /workspace/builds/worker-6-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 12 packages
[INFO] [stderr]       Adding crc v1.8.1 (latest: v3.0.1)
[INFO] [stderr]       Adding memedb_core v1.0.2 (latest: v2.0.1)
[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 custom_error v1.9.2
[INFO] [stderr]   Downloaded build_const v0.2.2
[INFO] [stderr]   Downloaded memedb_core v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 17f6ba5a7ecd87fb60907f6aef073efd990ba2f0ca20bf1dbab4636dcb43a146
[INFO] running `Command { std: "docker" "start" "-a" "17f6ba5a7ecd87fb60907f6aef073efd990ba2f0ca20bf1dbab4636dcb43a146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17f6ba5a7ecd87fb60907f6aef073efd990ba2f0ca20bf1dbab4636dcb43a146", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f6ba5a7ecd87fb60907f6aef073efd990ba2f0ca20bf1dbab4636dcb43a146", kill_on_drop: false }`
[INFO] [stdout] 17f6ba5a7ecd87fb60907f6aef073efd990ba2f0ca20bf1dbab4636dcb43a146
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9f58e95f77bc4b66fbca594b8dedd95a9bf1295b0660261669c54e1742d4e173
[INFO] running `Command { std: "docker" "start" "-a" "9f58e95f77bc4b66fbca594b8dedd95a9bf1295b0660261669c54e1742d4e173", kill_on_drop: false }`
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking custom_error v1.9.2
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking memedb_core v1.0.2
[INFO] [stderr]     Checking memedb_api v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `memedb_core` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use memedb_core;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `memedb_core` 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 `memedb_core` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use memedb_core;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `memedb_core` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.98s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9f58e95f77bc4b66fbca594b8dedd95a9bf1295b0660261669c54e1742d4e173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f58e95f77bc4b66fbca594b8dedd95a9bf1295b0660261669c54e1742d4e173", kill_on_drop: false }`
[INFO] [stdout] 9f58e95f77bc4b66fbca594b8dedd95a9bf1295b0660261669c54e1742d4e173
[INFO] checking memedb_api-0.1.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate memedb_api 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate memedb_api 0.1.0 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 memedb_api 0.1.0
[INFO] finished tweaking crates.io crate memedb_api 0.1.0
[INFO] tweaked toml for crates.io crate memedb_api 0.1.0 written to /workspace/builds/worker-6-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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 39d948c9165f0b35df443d97bda920818a7f24d4ccb2a3457dab9eb43a6d258a
[INFO] running `Command { std: "docker" "start" "-a" "39d948c9165f0b35df443d97bda920818a7f24d4ccb2a3457dab9eb43a6d258a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39d948c9165f0b35df443d97bda920818a7f24d4ccb2a3457dab9eb43a6d258a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d948c9165f0b35df443d97bda920818a7f24d4ccb2a3457dab9eb43a6d258a", kill_on_drop: false }`
[INFO] [stdout] 39d948c9165f0b35df443d97bda920818a7f24d4ccb2a3457dab9eb43a6d258a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 92ad4feea7f6adaa218f833f53a003213113de394782cd2753dd5cca26b637fb
[INFO] running `Command { std: "docker" "start" "-a" "92ad4feea7f6adaa218f833f53a003213113de394782cd2753dd5cca26b637fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking custom_error v1.9.2
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking memedb_core v1.0.2
[INFO] [stderr]     Checking memedb_api v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `memedb_core` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use memedb_core;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `memedb_core` 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 `memedb_core` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use memedb_core;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `memedb_core` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `Command { std: "docker" "inspect" "92ad4feea7f6adaa218f833f53a003213113de394782cd2753dd5cca26b637fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ad4feea7f6adaa218f833f53a003213113de394782cd2753dd5cca26b637fb", kill_on_drop: false }`
[INFO] [stdout] 92ad4feea7f6adaa218f833f53a003213113de394782cd2753dd5cca26b637fb