[INFO] fetching crate buildkit-frontend 0.3.0...
[INFO] checking buildkit-frontend-0.3.0 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate buildkit-frontend 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate buildkit-frontend 0.3.0 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buildkit-frontend 0.3.0
[INFO] finished tweaking crates.io crate buildkit-frontend 0.3.0
[INFO] tweaked toml for crates.io crate buildkit-frontend 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate buildkit-frontend 0.3.0 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded failure_derive v0.1.6
[INFO] [stderr]   Downloaded tracing-attributes v0.1.7
[INFO] [stderr]   Downloaded tower-ready-cache v0.3.1
[INFO] [stderr]   Downloaded output_vt100 v0.1.2
[INFO] [stderr]   Downloaded tokio-macros v0.2.5
[INFO] [stderr]   Downloaded ctor v0.1.13
[INFO] [stderr]   Downloaded tracing-futures v0.2.3
[INFO] [stderr]   Downloaded buildkit-llb v0.2.0
[INFO] [stderr]   Downloaded failure v0.1.6
[INFO] [stderr]   Downloaded tracing v0.1.13
[INFO] [stderr]   Downloaded hyper v0.13.3
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded h2 v0.2.2
[INFO] [stderr]   Downloaded pretty_assertions v0.6.1
[INFO] [stderr]   Downloaded sha2 v0.8.1
[INFO] [stderr]   Downloaded tracing-core v0.1.10
[INFO] [stderr]   Downloaded backtrace v0.3.45
[INFO] [stderr]   Downloaded buildkit-proto v0.2.0
[INFO] [stderr]   Downloaded backtrace-sys v0.1.33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8939d379d08a959b851eddfefc31c40a240c8edc6a287e5aa5396a43c627dd8
[INFO] running `Command { std: "docker" "start" "-a" "f8939d379d08a959b851eddfefc31c40a240c8edc6a287e5aa5396a43c627dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8939d379d08a959b851eddfefc31c40a240c8edc6a287e5aa5396a43c627dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8939d379d08a959b851eddfefc31c40a240c8edc6a287e5aa5396a43c627dd8", kill_on_drop: false }`
[INFO] [stdout] f8939d379d08a959b851eddfefc31c40a240c8edc6a287e5aa5396a43c627dd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30bf2ceafbbafc72bf2b17f4af9276feeae0eb81a3df082e39b57c5c9727f5ec
[INFO] running `Command { std: "docker" "start" "-a" "30bf2ceafbbafc72bf2b17f4af9276feeae0eb81a3df082e39b57c5c9727f5ec", kill_on_drop: false }`
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[INFO] [stderr]    Compiling unicode-xid v0.2.0
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[INFO] [stderr]     Checking backtrace v0.3.45
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling prost-derive v0.6.1
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[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling async-trait v0.1.24
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[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]     Checking tokio-util v0.2.0
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[INFO] [stderr]     Checking tower-load v0.3.0
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[INFO] [stderr]    Compiling prost-types v0.6.1
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[INFO] [stderr]     Checking tower-make v0.3.0
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[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking tower-balance v0.3.0
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tower v0.3.1
[INFO] [stderr]    Compiling tonic-build v0.1.1
[INFO] [stderr]    Compiling buildkit-proto v0.2.0
[INFO] [stderr]     Checking hyper v0.13.3
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking tonic v0.1.1
[INFO] [stderr]     Checking buildkit-llb v0.2.0
[INFO] [stderr]     Checking buildkit-frontend v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unused import: `ResolveMode`
[INFO] [stdout]   --> src/bridge.rs:19:50
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub use buildkit_llb::ops::source::{ImageSource, ResolveMode};
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `ResolveMode`
[INFO] [stdout]   --> src/bridge.rs:19:50
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub use buildkit_llb::ops::source::{ImageSource, ResolveMode};
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused borrow that must be used
[INFO] [stdout]  --> src/stdio.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[pin_project]
[INFO] [stdout]   | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[deny(unused_must_use)]` implied by `#[deny(warnings)]`
[INFO] [stdout]   = note: this error originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `buildkit-frontend` (lib test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: unused borrow that must be used
[INFO] [stdout]  --> src/stdio.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[pin_project]
[INFO] [stdout]   | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[deny(unused_must_use)]` implied by `#[deny(warnings)]`
[INFO] [stdout]   = note: this error originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `buildkit-frontend` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "30bf2ceafbbafc72bf2b17f4af9276feeae0eb81a3df082e39b57c5c9727f5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30bf2ceafbbafc72bf2b17f4af9276feeae0eb81a3df082e39b57c5c9727f5ec", kill_on_drop: false }`
[INFO] [stdout] 30bf2ceafbbafc72bf2b17f4af9276feeae0eb81a3df082e39b57c5c9727f5ec
