[INFO] cloning repository https://github.com/vn-ki/letterboxd-compare
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vn-ki/letterboxd-compare" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvn-ki%2Fletterboxd-compare", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvn-ki%2Fletterboxd-compare'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a899b927fef09eebd07dd51e50f5977d60156051
[INFO] checking vn-ki/letterboxd-compare/a899b927fef09eebd07dd51e50f5977d60156051 against master#32cd9114712a24010b0583624dc52ac302194128 for pr-143717
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvn-ki%2Fletterboxd-compare" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/vn-ki/letterboxd-compare
[INFO] finished tweaking git repo https://github.com/vn-ki/letterboxd-compare
[INFO] tweaked toml for git repo https://github.com/vn-ki/letterboxd-compare written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vn-ki/letterboxd-compare on toolchain 32cd9114712a24010b0583624dc52ac302194128
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vn-ki/letterboxd-compare 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" "+32cd9114712a24010b0583624dc52ac302194128" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sharded-slab v0.1.0
[INFO] [stderr]   Downloaded askama_escape v0.2.0
[INFO] [stderr]   Downloaded askama v0.8.0
[INFO] [stderr]   Downloaded parking_lot_core v0.8.2
[INFO] [stderr]   Downloaded askama_derive v0.8.0
[INFO] [stderr]   Downloaded markup5ever v0.10.0
[INFO] [stderr]   Downloaded loom v0.3.6
[INFO] [stderr]   Downloaded tendril v0.4.1
[INFO] [stderr]   Downloaded generator v0.6.23
[INFO] [stderr]   Downloaded askama_shared v0.8.0
[INFO] [stderr]   Downloaded hyper v0.14.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9421264437db7c7116317c3a926a55a3b2abf872c47a5c70d957749a509bde4
[INFO] running `Command { std: "docker" "start" "-a" "d9421264437db7c7116317c3a926a55a3b2abf872c47a5c70d957749a509bde4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9421264437db7c7116317c3a926a55a3b2abf872c47a5c70d957749a509bde4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9421264437db7c7116317c3a926a55a3b2abf872c47a5c70d957749a509bde4", kill_on_drop: false }`
[INFO] [stdout] d9421264437db7c7116317c3a926a55a3b2abf872c47a5c70d957749a509bde4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+32cd9114712a24010b0583624dc52ac302194128" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23c94a7fae6af355eddbe4c381d9fba9678a5f0a86ff3e195ee9ed31aaeb44ff
[INFO] running `Command { std: "docker" "start" "-a" "23c94a7fae6af355eddbe4c381d9fba9678a5f0a86ff3e195ee9ed31aaeb44ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.31
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking dtoa-short v0.3.3
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stdout] error[E0793]: reference to packed field is unaligned
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tendril-0.4.1/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 signal-hook-registry v1.2.2
[INFO] [stdout] error[E0793]: reference to packed field is unaligned
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tendril-0.4.1/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] For more information about this error, try `rustc --explain E0793`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tendril` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "23c94a7fae6af355eddbe4c381d9fba9678a5f0a86ff3e195ee9ed31aaeb44ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c94a7fae6af355eddbe4c381d9fba9678a5f0a86ff3e195ee9ed31aaeb44ff", kill_on_drop: false }`
[INFO] [stdout] 23c94a7fae6af355eddbe4c381d9fba9678a5f0a86ff3e195ee9ed31aaeb44ff