[INFO] fetching crate tarpc-bincode-transport 0.7.0...
[INFO] checking tarpc-bincode-transport-0.7.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate tarpc-bincode-transport 0.7.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate tarpc-bincode-transport 0.7.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tarpc-bincode-transport 0.7.0
[INFO] finished tweaking crates.io crate tarpc-bincode-transport 0.7.0
[INFO] tweaked toml for crates.io crate tarpc-bincode-transport 0.7.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44163541463e4421f99c962935092bc247000a9c38e375586a144a2aa3ace144
[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" "44163541463e4421f99c962935092bc247000a9c38e375586a144a2aa3ace144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44163541463e4421f99c962935092bc247000a9c38e375586a144a2aa3ace144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44163541463e4421f99c962935092bc247000a9c38e375586a144a2aa3ace144", kill_on_drop: false }`
[INFO] [stdout] 44163541463e4421f99c962935092bc247000a9c38e375586a144a2aa3ace144
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] eec969193e867798afb149782794da99040ce98cd0cc95e52098d1307ff15931
[INFO] running `Command { std: "docker" "start" "-a" "eec969193e867798afb149782794da99040ce98cd0cc95e52098d1307ff15931", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking rustc_term v0.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_term-0.0.1/lib.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![feature(custom_attribute)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking tokio-serde v0.3.0
[INFO] [stdout] error: aborting due to previous error
[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_term`
[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" "eec969193e867798afb149782794da99040ce98cd0cc95e52098d1307ff15931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eec969193e867798afb149782794da99040ce98cd0cc95e52098d1307ff15931", kill_on_drop: false }`
[INFO] [stdout] eec969193e867798afb149782794da99040ce98cd0cc95e52098d1307ff15931