[INFO] cloning repository https://github.com/sathishvinayk/mongodb_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sathishvinayk/mongodb_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsathishvinayk%2Fmongodb_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsathishvinayk%2Fmongodb_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd3553741c8b26698bb1ac6786902c09b99bc86e
[INFO] checking sathishvinayk/mongodb_rust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsathishvinayk%2Fmongodb_rust" "/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/sathishvinayk/mongodb_rust on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sathishvinayk/mongodb_rust
[INFO] finished tweaking git repo https://github.com/sathishvinayk/mongodb_rust
[INFO] tweaked toml for git repo https://github.com/sathishvinayk/mongodb_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sathishvinayk/mongodb_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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f03ea7bfa6e4af7bf10a20c8935452600e16addfd93351e348da686422a5ef8d
[INFO] running `Command { std: "docker" "start" "-a" "f03ea7bfa6e4af7bf10a20c8935452600e16addfd93351e348da686422a5ef8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f03ea7bfa6e4af7bf10a20c8935452600e16addfd93351e348da686422a5ef8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f03ea7bfa6e4af7bf10a20c8935452600e16addfd93351e348da686422a5ef8d", kill_on_drop: false }`
[INFO] [stdout] f03ea7bfa6e4af7bf10a20c8935452600e16addfd93351e348da686422a5ef8d
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11bd53a0499bb0c17730982226ca958a8e1d89321cd87ffaed859040b87447fc
[INFO] running `Command { std: "docker" "start" "-a" "11bd53a0499bb0c17730982226ca958a8e1d89321cd87ffaed859040b87447fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
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[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]     Checking async-std v1.8.0
[INFO] [stderr]     Checking tokio-rustls v0.13.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling serde_with_macros v1.3.0
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
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[INFO] [stderr]     Checking bson v1.1.0
[INFO] [stderr]     Checking mongodb v1.1.1
[INFO] [stderr]     Checking mongo-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `dotenv` is imported redundantly
[INFO] [stdout]  --> src/article/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use dotenv;
[INFO] [stdout]   |     ^^^^^^ the item `dotenv` 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 `dotenv` is imported redundantly
[INFO] [stdout]  --> src/article/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use dotenv;
[INFO] [stdout]   |     ^^^^^^ the item `dotenv` 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 11.96s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bson v1.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "11bd53a0499bb0c17730982226ca958a8e1d89321cd87ffaed859040b87447fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11bd53a0499bb0c17730982226ca958a8e1d89321cd87ffaed859040b87447fc", kill_on_drop: false }`
[INFO] [stdout] 11bd53a0499bb0c17730982226ca958a8e1d89321cd87ffaed859040b87447fc