[INFO] fetching crate shared-string 0.1.7...
[INFO] checking shared-string-0.1.7 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate shared-string 0.1.7 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate shared-string 0.1.7 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shared-string 0.1.7
[INFO] finished tweaking crates.io crate shared-string 0.1.7
[INFO] tweaked toml for crates.io crate shared-string 0.1.7 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a79dcfd7c8a93d3be73b80e7123ffbd228c0ea6d35d666f1c2d6810d93adf40e
[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" "a79dcfd7c8a93d3be73b80e7123ffbd228c0ea6d35d666f1c2d6810d93adf40e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a79dcfd7c8a93d3be73b80e7123ffbd228c0ea6d35d666f1c2d6810d93adf40e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79dcfd7c8a93d3be73b80e7123ffbd228c0ea6d35d666f1c2d6810d93adf40e", kill_on_drop: false }`
[INFO] [stdout] a79dcfd7c8a93d3be73b80e7123ffbd228c0ea6d35d666f1c2d6810d93adf40e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05e98e46e339c9d8cdfb6e4a8911e4215da97adc76feef4408367f744be851df
[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" "05e98e46e339c9d8cdfb6e4a8911e4215da97adc76feef4408367f744be851df", kill_on_drop: false }`
[INFO] [stderr]     Checking shared-string v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling serde_derive v1.0.128
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stdout] warning: field is never read: `firstname`
[INFO] [stdout]   --> benches/main_example.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub firstname: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `middlename`
[INFO] [stdout]   --> benches/main_example.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub middlename: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lastname`
[INFO] [stdout]   --> benches/main_example.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub lastname: String
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `firstname`
[INFO] [stdout]   --> benches/main_example.rs:31:2
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub firstname: SharedString,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `middlename`
[INFO] [stdout]   --> benches/main_example.rs:32:2
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub middlename: SharedString,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `lastname`
[INFO] [stdout]   --> benches/main_example.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub lastname: SharedString
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.06s
[INFO] running `Command { std: "docker" "inspect" "05e98e46e339c9d8cdfb6e4a8911e4215da97adc76feef4408367f744be851df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05e98e46e339c9d8cdfb6e4a8911e4215da97adc76feef4408367f744be851df", kill_on_drop: false }`
[INFO] [stdout] 05e98e46e339c9d8cdfb6e4a8911e4215da97adc76feef4408367f744be851df