[INFO] fetching crate from_remote_derive 0.2.2...
[INFO] checking from_remote_derive-0.2.2 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate from_remote_derive 0.2.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate from_remote_derive 0.2.2 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate from_remote_derive 0.2.2
[INFO] finished tweaking crates.io crate from_remote_derive 0.2.2
[INFO] tweaked toml for crates.io crate from_remote_derive 0.2.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate from_remote_derive 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fb330e6c16e32324ecd3d320a9e1853dddd44ed9deae23894820a95e7eb5026
[INFO] running `Command { std: "docker" "start" "-a" "0fb330e6c16e32324ecd3d320a9e1853dddd44ed9deae23894820a95e7eb5026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fb330e6c16e32324ecd3d320a9e1853dddd44ed9deae23894820a95e7eb5026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fb330e6c16e32324ecd3d320a9e1853dddd44ed9deae23894820a95e7eb5026", kill_on_drop: false }`
[INFO] [stdout] 0fb330e6c16e32324ecd3d320a9e1853dddd44ed9deae23894820a95e7eb5026
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32bb53a25ac81f89ff42887972c7f7c0426018fe372893ddad9f563ec8a60b6b
[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" "32bb53a25ac81f89ff42887972c7f7c0426018fe372893ddad9f563ec8a60b6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking syn v0.15.44
[INFO] [stderr]     Checking from_remote_derive v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `bar`
[INFO] [stdout]  --> examples/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     bar: BTreeMap<u64, u64>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fizz`
[INFO] [stdout]  --> examples/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fizz: Vec<String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> examples/main.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         x: u16,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> examples/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         y: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `A`
[INFO] [stdout]   --> examples/main.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     A(u64, Option<u64>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `B`
[INFO] [stdout]   --> examples/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     B(HashMap<String, Bar>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `C`
[INFO] [stdout]   --> examples/main.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     C(Bar),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `D`
[INFO] [stdout]   --> examples/main.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | /     D {
[INFO] [stdout] 39 | |         x: u16,
[INFO] [stdout] 40 | |         y: u32,
[INFO] [stdout] 41 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.16s
[INFO] running `Command { std: "docker" "inspect" "32bb53a25ac81f89ff42887972c7f7c0426018fe372893ddad9f563ec8a60b6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32bb53a25ac81f89ff42887972c7f7c0426018fe372893ddad9f563ec8a60b6b", kill_on_drop: false }`
[INFO] [stdout] 32bb53a25ac81f89ff42887972c7f7c0426018fe372893ddad9f563ec8a60b6b