[INFO] cloning repository https://github.com/Max-E/servo_library_bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Max-E/servo_library_bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMax-E%2Fservo_library_bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMax-E%2Fservo_library_bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fe63106a437832437c6903531bd3b705d1b9420
[INFO] checking Max-E/servo_library_bug/2fe63106a437832437c6903531bd3b705d1b9420 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMax-E%2Fservo_library_bug" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Max-E/servo_library_bug on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/Max-E/servo_library_bug
[INFO] finished tweaking git repo https://github.com/Max-E/servo_library_bug
[INFO] tweaked toml for git repo https://github.com/Max-E/servo_library_bug written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Max-E/servo_library_bug 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
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[INFO] [stderr]     Updating git repository `https://github.com/servo/devices`
[INFO] [stderr]     Updating git repository `https://github.com/servo/rust-azure`
[INFO] [stderr]     Updating git repository `https://github.com/servo/fontsan`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3485ad26fe7304a23711fdacc6ae1a5447884785d353731b571ddeefe98a2abf
[INFO] running `Command { std: "docker" "start" "-a" "3485ad26fe7304a23711fdacc6ae1a5447884785d353731b571ddeefe98a2abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3485ad26fe7304a23711fdacc6ae1a5447884785d353731b571ddeefe98a2abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3485ad26fe7304a23711fdacc6ae1a5447884785d353731b571ddeefe98a2abf", kill_on_drop: false }`
[INFO] [stdout] 3485ad26fe7304a23711fdacc6ae1a5447884785d353731b571ddeefe98a2abf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2764205b20c345c4f17a63d730eeed31235a76f2b0db19fb6c3bbfa7443fb26
[INFO] running `Command { std: "docker" "start" "-a" "d2764205b20c345c4f17a63d730eeed31235a76f2b0db19fb6c3bbfa7443fb26", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]    Compiling cc v1.0.8
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking num-traits v0.2.1
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking smallvec v0.6.0
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking futf v0.1.3
[INFO] [stderr]     Checking utf-8 v0.7.2
[INFO] [stderr]    Compiling mozjs_sys v0.50.1
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]     Checking tendril v0.4.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stdout] error[E0793]: reference to packed field is unaligned
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tendril-0.4.0/src/tendril.rs:241:20
[INFO] [stdout]     |
[INFO] [stdout] 241 |                 if (*header).refcount.decrement() == 1 {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
[INFO] [stdout]     = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout]     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stdout] error[E0793]: reference to packed field is unaligned
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tendril-0.4.0/src/tendril.rs:958:9
[INFO] [stdout]     |
[INFO] [stdout] 958 |         (*self.header()).refcount.increment();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
[INFO] [stdout]     = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout]     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0793`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tendril` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d2764205b20c345c4f17a63d730eeed31235a76f2b0db19fb6c3bbfa7443fb26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2764205b20c345c4f17a63d730eeed31235a76f2b0db19fb6c3bbfa7443fb26", kill_on_drop: false }`
[INFO] [stdout] d2764205b20c345c4f17a63d730eeed31235a76f2b0db19fb6c3bbfa7443fb26