[INFO] fetching crate smart-debug-derive 0.0.3...
[INFO] building smart-debug-derive-0.0.3 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate smart-debug-derive 0.0.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate smart-debug-derive 0.0.3
[INFO] finished tweaking crates.io crate smart-debug-derive 0.0.3
[INFO] tweaked toml for crates.io crate smart-debug-derive 0.0.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate smart-debug-derive 0.0.3 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2782a577dd8b666920c340fd82276bf6d7a10fa67b92b7a8532692351011d948
[INFO] running `Command { std: "docker" "start" "-a" "2782a577dd8b666920c340fd82276bf6d7a10fa67b92b7a8532692351011d948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2782a577dd8b666920c340fd82276bf6d7a10fa67b92b7a8532692351011d948", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2782a577dd8b666920c340fd82276bf6d7a10fa67b92b7a8532692351011d948", kill_on_drop: false }`
[INFO] [stdout] 2782a577dd8b666920c340fd82276bf6d7a10fa67b92b7a8532692351011d948
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b44d6a533328043a30e632ff260dc0f7dedebb726b797c1e55f837b9b1e3912
[INFO] running `Command { std: "docker" "start" "-a" "6b44d6a533328043a30e632ff260dc0f7dedebb726b797c1e55f837b9b1e3912", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling smart-debug-derive v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/attr/container.rs:160:10
[INFO] [stdout]     |
[INFO] [stdout] 160 |     Expr(Expr),
[INFO] [stdout]     |     ---- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AttrValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 160 -     Expr(Expr),
[INFO] [stdout] 160 +     Expr(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/attr/container.rs:161:10
[INFO] [stdout]     |
[INFO] [stdout] 161 |     Call(Vec<Expr>),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AttrValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 161 -     Call(Vec<Expr>),
[INFO] [stdout] 161 +     Call(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "6b44d6a533328043a30e632ff260dc0f7dedebb726b797c1e55f837b9b1e3912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b44d6a533328043a30e632ff260dc0f7dedebb726b797c1e55f837b9b1e3912", kill_on_drop: false }`
[INFO] [stdout] 6b44d6a533328043a30e632ff260dc0f7dedebb726b797c1e55f837b9b1e3912
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 073d9946f4689d635179f7313b937c3729325f108e8955622f6e9b0a61bea850
[INFO] running `Command { std: "docker" "start" "-a" "073d9946f4689d635179f7313b937c3729325f108e8955622f6e9b0a61bea850", kill_on_drop: false }`
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling smart-debug-derive v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/attr/container.rs:160:10
[INFO] [stdout]     |
[INFO] [stdout] 160 |     Expr(Expr),
[INFO] [stdout]     |     ---- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AttrValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 160 -     Expr(Expr),
[INFO] [stdout] 160 +     Expr(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/attr/container.rs:161:10
[INFO] [stdout]     |
[INFO] [stdout] 161 |     Call(Vec<Expr>),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AttrValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 161 -     Call(Vec<Expr>),
[INFO] [stdout] 161 +     Call(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling insta v1.43.2
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/attr/container.rs:160:10
[INFO] [stdout]     |
[INFO] [stdout] 160 |     Expr(Expr),
[INFO] [stdout]     |     ---- ^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AttrValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 160 -     Expr(Expr),
[INFO] [stdout] 160 +     Expr(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/attr/container.rs:161:10
[INFO] [stdout]     |
[INFO] [stdout] 161 |     Call(Vec<Expr>),
[INFO] [stdout]     |     ---- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `AttrValue` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 161 -     Call(Vec<Expr>),
[INFO] [stdout] 161 +     Call(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.72s
[INFO] running `Command { std: "docker" "inspect" "073d9946f4689d635179f7313b937c3729325f108e8955622f6e9b0a61bea850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073d9946f4689d635179f7313b937c3729325f108e8955622f6e9b0a61bea850", kill_on_drop: false }`
[INFO] [stdout] 073d9946f4689d635179f7313b937c3729325f108e8955622f6e9b0a61bea850