[INFO] fetching crate serde-html 0.0.1...
[INFO] testing serde-html-0.0.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate serde-html 0.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate serde-html 0.0.1
[INFO] finished tweaking crates.io crate serde-html 0.0.1
[INFO] tweaked toml for crates.io crate serde-html 0.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-html 0.0.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 049d5ba6caf7eff1af2539ae38ec8df95681eef0fc05e7197cd78cbe0983f456
[INFO] running `Command { std: "docker" "start" "-a" "049d5ba6caf7eff1af2539ae38ec8df95681eef0fc05e7197cd78cbe0983f456", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "049d5ba6caf7eff1af2539ae38ec8df95681eef0fc05e7197cd78cbe0983f456", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "049d5ba6caf7eff1af2539ae38ec8df95681eef0fc05e7197cd78cbe0983f456", kill_on_drop: false }`
[INFO] [stdout] 049d5ba6caf7eff1af2539ae38ec8df95681eef0fc05e7197cd78cbe0983f456
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a410631fabafbfb4e6748158c8ef214b865c9417be1dab2ddb6b00aeae79c5e5
[INFO] running `Command { std: "docker" "start" "-a" "a410631fabafbfb4e6748158c8ef214b865c9417be1dab2ddb6b00aeae79c5e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-html v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::ops::AddAssign`
[INFO] [stdout]  --> src/traits/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::ops::AddAssign;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `indexmap::IndexSet::<T, S>::remove`: `remove` disrupts the set order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stdout]   --> src/traits/edit.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         self.classes.remove(class)
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AttributePair` is never constructed
[INFO] [stdout]   --> src/values/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AttributePair {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "a410631fabafbfb4e6748158c8ef214b865c9417be1dab2ddb6b00aeae79c5e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a410631fabafbfb4e6748158c8ef214b865c9417be1dab2ddb6b00aeae79c5e5", kill_on_drop: false }`
[INFO] [stdout] a410631fabafbfb4e6748158c8ef214b865c9417be1dab2ddb6b00aeae79c5e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8090418490061c6f2fc2b8079da7deb190a68145edbf99036844932b7d28e02
[INFO] running `Command { std: "docker" "start" "-a" "d8090418490061c6f2fc2b8079da7deb190a68145edbf99036844932b7d28e02", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `core::ops::AddAssign`
[INFO] [stdout]  --> src/traits/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::ops::AddAssign;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde-html v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `indexmap::IndexSet::<T, S>::remove`: `remove` disrupts the set order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stdout]   --> src/traits/edit.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         self.classes.remove(class)
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AttributePair` is never constructed
[INFO] [stdout]   --> src/values/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AttributePair {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ops::AddAssign`
[INFO] [stdout]  --> src/traits/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use core::ops::AddAssign;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `indexmap::IndexSet::<T, S>::remove`: `remove` disrupts the set order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stdout]   --> src/traits/edit.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         self.classes.remove(class)
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AttributePair` is never constructed
[INFO] [stdout]   --> src/values/mod.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AttributePair {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "d8090418490061c6f2fc2b8079da7deb190a68145edbf99036844932b7d28e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8090418490061c6f2fc2b8079da7deb190a68145edbf99036844932b7d28e02", kill_on_drop: false }`
[INFO] [stdout] d8090418490061c6f2fc2b8079da7deb190a68145edbf99036844932b7d28e02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 50e3fe5e6de86ae824d55657148a515f8aa8e4ddbfd73f97b433b6055dcb2b3f
[INFO] running `Command { std: "docker" "start" "-a" "50e3fe5e6de86ae824d55657148a515f8aa8e4ddbfd73f97b433b6055dcb2b3f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `core::ops::AddAssign`
[INFO] [stderr]  --> src/traits/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use core::ops::AddAssign;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `return_position_impl_trait_in_trait` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(return_position_impl_trait_in_trait)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `indexmap::IndexSet::<T, S>::remove`: `remove` disrupts the set order -- use `swap_remove` or `shift_remove` for explicit behavior.
[INFO] [stderr]   --> src/traits/edit.rs:48:22
[INFO] [stderr]    |
[INFO] [stderr] 48 |         self.classes.remove(class)
[INFO] [stderr]    |                      ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `AttributePair` is never constructed
[INFO] [stderr]   --> src/values/mod.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct AttributePair {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `serde-html` (lib) generated 4 warnings (run `cargo fix --lib -p serde-html` to apply 1 suggestion)
[INFO] [stderr] warning: `serde-html` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_html-c1fd93b825ae691a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_html
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "50e3fe5e6de86ae824d55657148a515f8aa8e4ddbfd73f97b433b6055dcb2b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50e3fe5e6de86ae824d55657148a515f8aa8e4ddbfd73f97b433b6055dcb2b3f", kill_on_drop: false }`
[INFO] [stdout] 50e3fe5e6de86ae824d55657148a515f8aa8e4ddbfd73f97b433b6055dcb2b3f