[INFO] fetching crate ruma-serde 0.6.1...
[INFO] checking ruma-serde-0.6.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate ruma-serde 0.6.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ruma-serde 0.6.1
[INFO] finished tweaking crates.io crate ruma-serde 0.6.1
[INFO] tweaked toml for crates.io crate ruma-serde 0.6.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ruma-serde 0.6.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded form_urlencoded v1.2.2
[INFO] [stderr]   Downloaded matches v0.1.10
[INFO] [stderr]   Downloaded percent-encoding v2.3.2
[INFO] [stderr]   Downloaded ruma-serde-macros v0.6.1
[INFO] [stderr]   Downloaded base64 v0.13.1
[INFO] [stderr]   Downloaded serde_json v1.0.143
[INFO] [stderr]   Downloaded syn v2.0.106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6388406764f224a073624716445844ba4b84b9acdecf829b04a378da4893ec2
[INFO] running `Command { std: "docker" "start" "-a" "d6388406764f224a073624716445844ba4b84b9acdecf829b04a378da4893ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6388406764f224a073624716445844ba4b84b9acdecf829b04a378da4893ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6388406764f224a073624716445844ba4b84b9acdecf829b04a378da4893ec2", kill_on_drop: false }`
[INFO] [stdout] d6388406764f224a073624716445844ba4b84b9acdecf829b04a378da4893ec2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df21354f00e25091e1b153b7a9dc4fbbef41537a61264bbd2510e6448835ad11
[INFO] running `Command { std: "docker" "start" "-a" "df21354f00e25091e1b153b7a9dc4fbbef41537a61264bbd2510e6448835ad11", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]    Compiling indexmap v2.11.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling ruma-serde-macros v0.6.1
[INFO] [stderr]     Checking js_int v0.2.2
[INFO] [stderr]     Checking ruma-serde v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `ruma_identifiers`
[INFO] [stdout]   --> tests/empty_strings.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     use ruma_identifiers::{user_id, UserId};
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `ruma_identifiers`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `ruma_identifiers`, use `cargo add ruma_identifiers` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruma-serde` (test "empty_strings") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `Wrapper` is never constructed
[INFO] [stdout]    --> tests/url_deserialize.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | struct Wrapper<T> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Struct` is never constructed
[INFO] [stdout]    --> tests/url_deserialize.rs:188:8
[INFO] [stdout]     |
[INFO] [stdout] 188 | struct Struct<'a> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ListStruct` is never constructed
[INFO] [stdout]    --> tests/url_deserialize.rs:199:8
[INFO] [stdout]     |
[INFO] [stdout] 199 | struct ListStruct {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "df21354f00e25091e1b153b7a9dc4fbbef41537a61264bbd2510e6448835ad11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df21354f00e25091e1b153b7a9dc4fbbef41537a61264bbd2510e6448835ad11", kill_on_drop: false }`
[INFO] [stdout] df21354f00e25091e1b153b7a9dc4fbbef41537a61264bbd2510e6448835ad11