[INFO] fetching crate rustc-ap-rustc_ast_passes 679.0.0...
[INFO] checking rustc-ap-rustc_ast_passes-679.0.0 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate rustc-ap-rustc_ast_passes 679.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rustc-ap-rustc_ast_passes 679.0.0 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustc-ap-rustc_ast_passes 679.0.0
[INFO] finished tweaking crates.io crate rustc-ap-rustc_ast_passes 679.0.0
[INFO] tweaked toml for crates.io crate rustc-ap-rustc_ast_passes 679.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a769f4bbdb1f5a6597e4e860cdc3788799156628c0bbc866ed49bda6541a580
[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" "4a769f4bbdb1f5a6597e4e860cdc3788799156628c0bbc866ed49bda6541a580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a769f4bbdb1f5a6597e4e860cdc3788799156628c0bbc866ed49bda6541a580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a769f4bbdb1f5a6597e4e860cdc3788799156628c0bbc866ed49bda6541a580", kill_on_drop: false }`
[INFO] [stdout] 4a769f4bbdb1f5a6597e4e860cdc3788799156628c0bbc866ed49bda6541a580
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa1667bd2339b6372f0fb6e13e91a332137e53da2afebafd1500dc787027569e
[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" "fa1667bd2339b6372f0fb6e13e91a332137e53da2afebafd1500dc787027569e", kill_on_drop: false }`
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast_pretty v679.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_session v679.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_parse v679.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_attr v679.0.0
[INFO] [stdout] error: environment variable `CFG_RELEASE_CHANNEL` not defined
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_attr-679.0.0/src/builtin.rs:576:27
[INFO] [stdout]     |
[INFO] [stdout] 576 |             let channel = env!("CFG_RELEASE_CHANNEL");
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `CFG_RELEASE` not defined
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_attr-679.0.0/src/builtin.rs:578:48
[INFO] [stdout]     |
[INFO] [stdout] 578 |             let rustc_version = Version::parse(env!("CFG_RELEASE")).unwrap();
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-ap-rustc_attr`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fa1667bd2339b6372f0fb6e13e91a332137e53da2afebafd1500dc787027569e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1667bd2339b6372f0fb6e13e91a332137e53da2afebafd1500dc787027569e", kill_on_drop: false }`
[INFO] [stdout] fa1667bd2339b6372f0fb6e13e91a332137e53da2afebafd1500dc787027569e