[INFO] fetching crate trivial-kernel 0.9.0...
[INFO] checking trivial-kernel-0.9.0 against master#d8810e3e2dab96778d20dd6d746ff95465515509 for pr-137033
[INFO] extracting crate trivial-kernel 0.9.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate trivial-kernel 0.9.0 on toolchain d8810e3e2dab96778d20dd6d746ff95465515509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate trivial-kernel 0.9.0
[INFO] finished tweaking crates.io crate trivial-kernel 0.9.0
[INFO] tweaked toml for crates.io crate trivial-kernel 0.9.0 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" "+d8810e3e2dab96778d20dd6d746ff95465515509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mmb-types v0.3.1
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 748e00047ebc133ff749106af531ab4af309cdd2e92d9a2c8026c93fe4a15449
[INFO] running `Command { std: "docker" "start" "-a" "748e00047ebc133ff749106af531ab4af309cdd2e92d9a2c8026c93fe4a15449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "748e00047ebc133ff749106af531ab4af309cdd2e92d9a2c8026c93fe4a15449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "748e00047ebc133ff749106af531ab4af309cdd2e92d9a2c8026c93fe4a15449", kill_on_drop: false }`
[INFO] [stdout] 748e00047ebc133ff749106af531ab4af309cdd2e92d9a2c8026c93fe4a15449
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+d8810e3e2dab96778d20dd6d746ff95465515509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 338e72187fb160676cee704bf527eeae3a1e9ede79907246f112e801b62295f7
[INFO] running `Command { std: "docker" "start" "-a" "338e72187fb160676cee704bf527eeae3a1e9ede79907246f112e801b62295f7", kill_on_drop: false }`
[INFO] [stderr]     Checking mmb-types v0.3.1
[INFO] [stderr]     Checking trivial-kernel v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/context/store.rs:74:54
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub struct DisplayPackedPtr<'a, S: Store>(PackedPtr, &'a S);
[INFO] [stdout]    |            ---------------- field in this struct     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/context/store.rs:74:54
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub struct DisplayPackedPtr<'a, S: Store>(PackedPtr, &'a S);
[INFO] [stdout]    |            ---------------- field in this struct     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "338e72187fb160676cee704bf527eeae3a1e9ede79907246f112e801b62295f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "338e72187fb160676cee704bf527eeae3a1e9ede79907246f112e801b62295f7", kill_on_drop: false }`
[INFO] [stdout] 338e72187fb160676cee704bf527eeae3a1e9ede79907246f112e801b62295f7