[INFO] fetching crate epub 2.1.4...
[INFO] checking epub-2.1.4 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate epub 2.1.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate epub 2.1.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate epub 2.1.4
[INFO] tweaked toml for crates.io crate epub 2.1.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate epub 2.1.4 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate epub 2.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ba9c7973d137ef04fa155310f37e949a15cf6da765ca80f948f4bd177a92acc
[INFO] running `Command { std: "docker" "start" "-a" "7ba9c7973d137ef04fa155310f37e949a15cf6da765ca80f948f4bd177a92acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ba9c7973d137ef04fa155310f37e949a15cf6da765ca80f948f4bd177a92acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ba9c7973d137ef04fa155310f37e949a15cf6da765ca80f948f4bd177a92acc", kill_on_drop: false }`
[INFO] [stdout] 7ba9c7973d137ef04fa155310f37e949a15cf6da765ca80f948f4bd177a92acc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e777f7a69bf0fd1973fd8818613e2044626555454f36cdaee0095537e60af48
[INFO] running `Command { std: "docker" "start" "-a" "4e777f7a69bf0fd1973fd8818613e2044626555454f36cdaee0095537e60af48", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking zlib-rs v0.5.0
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]     Checking bumpalo v3.17.0
[INFO] [stderr]     Checking hashbrown v0.15.3
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking xml-rs v0.8.26
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]     Checking zopfli v0.8.2
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking libz-rs-sys v0.5.0
[INFO] [stderr]     Checking flate2 v1.1.1
[INFO] [stderr]     Checking zip v3.0.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]     Checking epub v2.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `namespace` is never read
[INFO] [stdout]    --> src/xmlutils.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub struct XMLNode {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub namespace: xml::namespace::Namespace,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `XMLNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `namespace` is never read
[INFO] [stdout]    --> src/xmlutils.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub struct XMLNode {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub namespace: xml::namespace::Namespace,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `XMLNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.98s
[INFO] running `Command { std: "docker" "inspect" "4e777f7a69bf0fd1973fd8818613e2044626555454f36cdaee0095537e60af48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e777f7a69bf0fd1973fd8818613e2044626555454f36cdaee0095537e60af48", kill_on_drop: false }`
[INFO] [stdout] 4e777f7a69bf0fd1973fd8818613e2044626555454f36cdaee0095537e60af48