[INFO] fetching crate rustc-ap-rustc_index 727.0.0...
[INFO] checking rustc-ap-rustc_index-727.0.0 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate rustc-ap-rustc_index 727.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate rustc-ap-rustc_index 727.0.0 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustc-ap-rustc_index 727.0.0
[INFO] finished tweaking crates.io crate rustc-ap-rustc_index 727.0.0
[INFO] tweaked toml for crates.io crate rustc-ap-rustc_index 727.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 13 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44268fe5a94b1dc9c92e5725837b84bb5ca9b40fc36b639acc2f899ebf328e6b
[INFO] running `Command { std: "docker" "start" "-a" "44268fe5a94b1dc9c92e5725837b84bb5ca9b40fc36b639acc2f899ebf328e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44268fe5a94b1dc9c92e5725837b84bb5ca9b40fc36b639acc2f899ebf328e6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44268fe5a94b1dc9c92e5725837b84bb5ca9b40fc36b639acc2f899ebf328e6b", kill_on_drop: false }`
[INFO] [stdout] 44268fe5a94b1dc9c92e5725837b84bb5ca9b40fc36b639acc2f899ebf328e6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72a6869f44404effdee561ae123e34bdc2df708ec9e869c5acb0e5b7b1f41730
[INFO] running `Command { std: "docker" "start" "-a" "72a6869f44404effdee561ae123e34bdc2df708ec9e869c5acb0e5b7b1f41730", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking rustc-ap-rustc_serialize v727.0.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-ap-rustc_serialize-727.0.0/src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(box_syntax)]
[INFO] [stdout]    |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-ap-rustc_serialize-727.0.0/src/serialize.rs:682:12
[INFO] [stdout]     |
[INFO] [stdout] 682 |         Ok(box Decodable::decode(d)?)
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 682 |         Ok(Box::new(Decodable::decode(d)?))
[INFO] [stdout]     |            ~~~~~~~~~                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-ap-rustc_serialize` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "72a6869f44404effdee561ae123e34bdc2df708ec9e869c5acb0e5b7b1f41730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a6869f44404effdee561ae123e34bdc2df708ec9e869c5acb0e5b7b1f41730", kill_on_drop: false }`
[INFO] [stdout] 72a6869f44404effdee561ae123e34bdc2df708ec9e869c5acb0e5b7b1f41730
