[INFO] fetching crate smash-arc 0.2.1...
[INFO] checking smash-arc-0.2.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate smash-arc 0.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate smash-arc 0.2.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smash-arc 0.2.1
[INFO] finished tweaking crates.io crate smash-arc 0.2.1
[INFO] tweaked toml for crates.io crate smash-arc 0.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded modular-bitfield v0.10.0
[INFO] [stderr]   Downloaded network-reader-adapter v0.1.0
[INFO] [stderr]   Downloaded modular-bitfield-impl v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 513ce0cacbb810c30db042acd00bdf6c5ac0030b684d218e2cffd81a268a9e67
[INFO] running `Command { std: "docker" "start" "-a" "513ce0cacbb810c30db042acd00bdf6c5ac0030b684d218e2cffd81a268a9e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "513ce0cacbb810c30db042acd00bdf6c5ac0030b684d218e2cffd81a268a9e67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "513ce0cacbb810c30db042acd00bdf6c5ac0030b684d218e2cffd81a268a9e67", kill_on_drop: false }`
[INFO] [stdout] 513ce0cacbb810c30db042acd00bdf6c5ac0030b684d218e2cffd81a268a9e67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dbfdbb63b715ae97980cb6a6b49e5618b66b2406414afc0a6b22b39a0013d33
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8dbfdbb63b715ae97980cb6a6b49e5618b66b2406414afc0a6b22b39a0013d33", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking network-reader-adapter v0.1.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling binread_derive v1.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling modular-bitfield-impl v0.10.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking modular-bitfield v0.10.0
[INFO] [stderr]     Checking binread v1.4.1
[INFO] [stderr]     Checking smash-arc v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: At least one ZSTD backend feature must be enabled
[INFO] [stdout]   --> src/zstd_backend/mod.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | compile_error!("At least one ZSTD backend feature must be enabled");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: At least one ZSTD backend feature must be enabled
[INFO] [stdout]   --> src/zstd_backend/mod.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | compile_error!("At least one ZSTD backend feature must be enabled");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smash-arc`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8dbfdbb63b715ae97980cb6a6b49e5618b66b2406414afc0a6b22b39a0013d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dbfdbb63b715ae97980cb6a6b49e5618b66b2406414afc0a6b22b39a0013d33", kill_on_drop: false }`
[INFO] [stdout] 8dbfdbb63b715ae97980cb6a6b49e5618b66b2406414afc0a6b22b39a0013d33