[INFO] fetching crate javelin-codec 0.3.4...
[INFO] checking javelin-codec-0.3.4 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate javelin-codec 0.3.4 into /workspace/builds/worker-40/source
[INFO] validating manifest of crates.io crate javelin-codec 0.3.4 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate javelin-codec 0.3.4
[INFO] finished tweaking crates.io crate javelin-codec 0.3.4
[INFO] tweaked toml for crates.io crate javelin-codec 0.3.4 written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0aef8fc618f7190164df9ddcbc474848217d88b8414d44e8b92e988949a6b3b
[INFO] running `Command { std: "docker" "start" "-a" "a0aef8fc618f7190164df9ddcbc474848217d88b8414d44e8b92e988949a6b3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0aef8fc618f7190164df9ddcbc474848217d88b8414d44e8b92e988949a6b3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0aef8fc618f7190164df9ddcbc474848217d88b8414d44e8b92e988949a6b3b", kill_on_drop: false }`
[INFO] [stdout] a0aef8fc618f7190164df9ddcbc474848217d88b8414d44e8b92e988949a6b3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a4dcf30e00440eeab2fd78cd38cd400ab0a5c27c1bbd905ec7de4d521cb733c
[INFO] running `Command { std: "docker" "start" "-a" "9a4dcf30e00440eeab2fd78cd38cd400ab0a5c27c1bbd905ec7de4d521cb733c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking javelin-codec v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]   --> src/aac/adts.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     metadata: Metadata,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `metadata`
[INFO] [stdout]   --> src/aac/adts.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     metadata: Metadata,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `Command { std: "docker" "inspect" "9a4dcf30e00440eeab2fd78cd38cd400ab0a5c27c1bbd905ec7de4d521cb733c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a4dcf30e00440eeab2fd78cd38cd400ab0a5c27c1bbd905ec7de4d521cb733c", kill_on_drop: false }`
[INFO] [stdout] 9a4dcf30e00440eeab2fd78cd38cd400ab0a5c27c1bbd905ec7de4d521cb733c