[INFO] fetching crate buildkit-llb 0.2.0...
[INFO] checking buildkit-llb-0.2.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate buildkit-llb 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate buildkit-llb 0.2.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buildkit-llb 0.2.0
[INFO] finished tweaking crates.io crate buildkit-llb 0.2.0
[INFO] tweaked toml for crates.io crate buildkit-llb 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate buildkit-llb 0.2.0 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd0b34ad3ac6acc438c6de051ef9969f3aa367f30543a2f076ec150ceecb3c4c
[INFO] running `Command { std: "docker" "start" "-a" "fd0b34ad3ac6acc438c6de051ef9969f3aa367f30543a2f076ec150ceecb3c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd0b34ad3ac6acc438c6de051ef9969f3aa367f30543a2f076ec150ceecb3c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd0b34ad3ac6acc438c6de051ef9969f3aa367f30543a2f076ec150ceecb3c4c", kill_on_drop: false }`
[INFO] [stdout] fd0b34ad3ac6acc438c6de051ef9969f3aa367f30543a2f076ec150ceecb3c4c
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 840da1f646040bc4f84d56c4ea18c883963e122cbb0c3debe09376edeea652af
[INFO] running `Command { std: "docker" "start" "-a" "840da1f646040bc4f84d56c4ea18c883963e122cbb0c3debe09376edeea652af", kill_on_drop: false }`
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[INFO] [stderr]    Compiling either v1.5.3
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[INFO] [stderr]     Checking tower-layer v0.3.0
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[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
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[INFO] [stderr]    Compiling heck v0.3.1
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[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking futures-sink v0.3.4
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[INFO] [stderr]     Checking tokio-util v0.2.0
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[INFO] [stderr]    Compiling failure_derive v0.1.6
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[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking block-padding v0.1.5
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[INFO] [stderr]    Compiling prost-derive v0.6.1
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[INFO] [stderr]    Compiling async-stream-impl v0.2.1
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[INFO] [stderr]     Checking tower-timeout v0.3.0
[INFO] [stderr]     Checking tower-retry v0.3.0
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[INFO] [stderr]     Checking tower-load v0.3.0
[INFO] [stderr]     Checking tracing-futures v0.2.3
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[INFO] [stderr]    Compiling prost v0.6.1
[INFO] [stderr]    Compiling prost-types v0.6.1
[INFO] [stderr]     Checking tonic v0.1.1
[INFO] [stderr]    Compiling tonic-build v0.1.1
[INFO] [stderr]    Compiling buildkit-proto v0.2.0
[INFO] [stderr]     Checking buildkit-llb v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: fields `description` and `caps` are never read
[INFO] [stdout]   --> src/ops/fs/mkdir.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct MakeDirOperation<'a> {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     description: HashMap<String, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 20 |     caps: HashMap<String, bool>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MakeDirOperation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: fields `description` and `caps` are never read
[INFO] [stdout]   --> src/ops/fs/mkfile.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct MakeFileOperation<'a> {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     description: HashMap<String, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 20 |     caps: HashMap<String, bool>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MakeFileOperation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `buildkit-llb` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: fields `description` and `caps` are never read
[INFO] [stdout]   --> src/ops/fs/mkdir.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct MakeDirOperation<'a> {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     description: HashMap<String, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 20 |     caps: HashMap<String, bool>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MakeDirOperation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: fields `description` and `caps` are never read
[INFO] [stdout]   --> src/ops/fs/mkfile.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct MakeFileOperation<'a> {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     description: HashMap<String, String>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 20 |     caps: HashMap<String, bool>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MakeFileOperation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `buildkit-llb` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "840da1f646040bc4f84d56c4ea18c883963e122cbb0c3debe09376edeea652af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840da1f646040bc4f84d56c4ea18c883963e122cbb0c3debe09376edeea652af", kill_on_drop: false }`
[INFO] [stdout] 840da1f646040bc4f84d56c4ea18c883963e122cbb0c3debe09376edeea652af
