[INFO] cloning repository https://github.com/imcbee/rust-backend-emply
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imcbee/rust-backend-emply" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimcbee%2Frust-backend-emply", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimcbee%2Frust-backend-emply'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea776ae0479579ac380e8f6e7d5d171f61818df9
[INFO] checking imcbee/rust-backend-emply against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimcbee%2Frust-backend-emply" "/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/imcbee/rust-backend-emply 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/imcbee/rust-backend-emply
[INFO] finished tweaking git repo https://github.com/imcbee/rust-backend-emply
[INFO] tweaked toml for git repo https://github.com/imcbee/rust-backend-emply written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/imcbee/rust-backend-emply 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 listenfd v0.3.5
[INFO] [stderr]   Downloaded derive-error-chain v0.11.2
[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] ae160c0e2a58bd704548a58c2be99b0a1e062c515a3f0916eb1ff4d02e4df853
[INFO] running `Command { std: "docker" "start" "-a" "ae160c0e2a58bd704548a58c2be99b0a1e062c515a3f0916eb1ff4d02e4df853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae160c0e2a58bd704548a58c2be99b0a1e062c515a3f0916eb1ff4d02e4df853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae160c0e2a58bd704548a58c2be99b0a1e062c515a3f0916eb1ff4d02e4df853", kill_on_drop: false }`
[INFO] [stdout] ae160c0e2a58bd704548a58c2be99b0a1e062c515a3f0916eb1ff4d02e4df853
[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] bafd177f1ffd2487beba2ced0d2a1a401f9f816bdd34f939b9da5114d2b5d224
[INFO] running `Command { std: "docker" "start" "-a" "bafd177f1ffd2487beba2ced0d2a1a401f9f816bdd34f939b9da5114d2b5d224", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.181
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[INFO] [stderr]    Compiling serde_derive v1.0.181
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking gimli v0.27.3
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[INFO] [stderr]     Checking rustc-demangle v0.1.23
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[INFO] [stderr]    Compiling scopeguard v1.2.0
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[INFO] [stderr]     Checking employee v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `r2d2` is imported redundantly
[INFO] [stdout]  --> src/db.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | 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 `r2d2` is imported redundantly
[INFO] [stdout]  --> src/db.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | 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: 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 45.63s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "bafd177f1ffd2487beba2ced0d2a1a401f9f816bdd34f939b9da5114d2b5d224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bafd177f1ffd2487beba2ced0d2a1a401f9f816bdd34f939b9da5114d2b5d224", kill_on_drop: false }`
[INFO] [stdout] bafd177f1ffd2487beba2ced0d2a1a401f9f816bdd34f939b9da5114d2b5d224