[INFO] fetching crate data-rw 1.5.5...
[INFO] checking data-rw-1.5.5 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate data-rw 1.5.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate data-rw 1.5.5 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate data-rw 1.5.5
[INFO] finished tweaking crates.io crate data-rw 1.5.5
[INFO] tweaked toml for crates.io crate data-rw 1.5.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f25f99277eb3eae251b23153c2a3ba7ea679035b45e78f58d1ff21857dcacc89
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f25f99277eb3eae251b23153c2a3ba7ea679035b45e78f58d1ff21857dcacc89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f25f99277eb3eae251b23153c2a3ba7ea679035b45e78f58d1ff21857dcacc89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f25f99277eb3eae251b23153c2a3ba7ea679035b45e78f58d1ff21857dcacc89", kill_on_drop: false }`
[INFO] [stdout] f25f99277eb3eae251b23153c2a3ba7ea679035b45e78f58d1ff21857dcacc89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d989f9089590882eda7c6e191b533c3b044b47270cd7caf3238ac4f70227c498
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d989f9089590882eda7c6e191b533c3b044b47270cd7caf3238ac4f70227c498", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.48
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling auto_impl v0.4.1
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.72
[INFO] [stderr]     Checking data-rw v1.5.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/data_owned_reader.rs:33:15
[INFO] [stdout]    |
[INFO] [stdout] 33 |     #[inline] #[inline]
[INFO] [stdout]    |               ^^^^^^^^^ help: remove this attribute
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: attribute also specified here
[INFO] [stdout]   --> src/data_owned_reader.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     #[inline] #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/data_owned_reader.rs:33:15
[INFO] [stdout]    |
[INFO] [stdout] 33 |     #[inline] #[inline]
[INFO] [stdout]    |               ^^^^^^^^^ help: remove this attribute
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: attribute also specified here
[INFO] [stdout]   --> src/data_owned_reader.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     #[inline] #[inline]
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.00s
[INFO] running `Command { std: "docker" "inspect" "d989f9089590882eda7c6e191b533c3b044b47270cd7caf3238ac4f70227c498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d989f9089590882eda7c6e191b533c3b044b47270cd7caf3238ac4f70227c498", kill_on_drop: false }`
[INFO] [stdout] d989f9089590882eda7c6e191b533c3b044b47270cd7caf3238ac4f70227c498