[INFO] cloning repository https://github.com/eeeeeta/sqa-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eeeeeta/sqa-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feeeeeta%2Fsqa-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feeeeeta%2Fsqa-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1609f2e19ae7bcad7d38d1d9fa9f507eabddf5cb
[INFO] checking eeeeeta/sqa-engine against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feeeeeta%2Fsqa-engine" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eeeeeta/sqa-engine on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eeeeeta/sqa-engine
[INFO] finished tweaking git repo https://github.com/eeeeeta/sqa-engine
[INFO] tweaked toml for git repo https://github.com/eeeeeta/sqa-engine written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/eeeeeta/sqa-engine 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v0.7.1
[INFO] [stderr]   Downloaded failure_derive v0.1.3
[INFO] [stderr]   Downloaded nodrop-union v0.1.9
[INFO] [stderr]   Downloaded failure v0.1.3
[INFO] [stderr]   Downloaded synstructure v0.10.0
[INFO] [stderr]   Downloaded jack-sys v0.1.5
[INFO] [stderr]   Downloaded backtrace v0.3.9
[INFO] [stderr]   Downloaded arrayvec v0.3.25
[INFO] [stderr]   Downloaded odds v0.2.26
[INFO] [stderr]   Downloaded lock_api v0.1.4
[INFO] [stderr]   Downloaded cc v1.0.25
[INFO] [stderr]   Downloaded bounded-spsc-queue v0.4.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.9
[INFO] [stderr]   Downloaded backtrace-sys v0.1.24
[INFO] [stderr]   Downloaded syn v0.15.13
[INFO] [stderr]   Downloaded sqa-jack v0.6.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7022c53f7c93018aa90c40bc9538ec19944755a7519ef3814e413a81efc8c50
[INFO] running `Command { std: "docker" "start" "-a" "e7022c53f7c93018aa90c40bc9538ec19944755a7519ef3814e413a81efc8c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7022c53f7c93018aa90c40bc9538ec19944755a7519ef3814e413a81efc8c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7022c53f7c93018aa90c40bc9538ec19944755a7519ef3814e413a81efc8c50", kill_on_drop: false }`
[INFO] [stdout] e7022c53f7c93018aa90c40bc9538ec19944755a7519ef3814e413a81efc8c50
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f377280f7c3123e33b4442b2843aedb70b05e85f5aa6ca23cd5dc9668947d21e
[INFO] running `Command { std: "docker" "start" "-a" "f377280f7c3123e33b4442b2843aedb70b05e85f5aa6ca23cd5dc9668947d21e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking nodrop-union v0.1.9
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/nodrop-union-0.1.9/src/lib.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | #![feature(untagged_unions)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stdout] error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/nodrop-union-0.1.9/src/lib.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     value: T,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
[INFO] [stdout] help: wrap the field type in `ManuallyDrop<...>`
[INFO] [stdout]    |
[INFO] [stdout] 32 |     value: std::mem::ManuallyDrop<T>,
[INFO] [stdout]    |            +++++++++++++++++++++++ +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0740.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr] error: could not compile `nodrop-union` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f377280f7c3123e33b4442b2843aedb70b05e85f5aa6ca23cd5dc9668947d21e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f377280f7c3123e33b4442b2843aedb70b05e85f5aa6ca23cd5dc9668947d21e", kill_on_drop: false }`
[INFO] [stdout] f377280f7c3123e33b4442b2843aedb70b05e85f5aa6ca23cd5dc9668947d21e