[INFO] fetching crate idealist 0.1.1...
[INFO] checking idealist-0.1.1 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate idealist 0.1.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate idealist 0.1.1 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate idealist 0.1.1
[INFO] finished tweaking crates.io crate idealist 0.1.1
[INFO] tweaked toml for crates.io crate idealist 0.1.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90a7e7ec161067d0e59583541d23d56f825c526af34bc2b4611b7b3d8faa8952
[INFO] running `Command { std: "docker" "start" "-a" "90a7e7ec161067d0e59583541d23d56f825c526af34bc2b4611b7b3d8faa8952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90a7e7ec161067d0e59583541d23d56f825c526af34bc2b4611b7b3d8faa8952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90a7e7ec161067d0e59583541d23d56f825c526af34bc2b4611b7b3d8faa8952", kill_on_drop: false }`
[INFO] [stdout] 90a7e7ec161067d0e59583541d23d56f825c526af34bc2b4611b7b3d8faa8952
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89f1c7fa51101186e04414f0e475a3adc596de65a5a519b8f00c3f2575a848a8
[INFO] running `Command { std: "docker" "start" "-a" "89f1c7fa51101186e04414f0e475a3adc596de65a5a519b8f00c3f2575a848a8", kill_on_drop: false }`
[INFO] [stderr]     Checking idealist v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:93
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_generics, const_evaluatable_checked, generic_associated_types, never_type, const_fn, const_trait_impl, arbitrary_self_ty...
[INFO] [stdout]   |                                                                                             ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:93
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_generics, const_evaluatable_checked, generic_associated_types, never_type, const_fn, const_trait_impl, arbitrary_self_ty...
[INFO] [stdout]   |                                                                                             ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[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 `idealist` due to 2 previous errors
[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] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "89f1c7fa51101186e04414f0e475a3adc596de65a5a519b8f00c3f2575a848a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89f1c7fa51101186e04414f0e475a3adc596de65a5a519b8f00c3f2575a848a8", kill_on_drop: false }`
[INFO] [stdout] 89f1c7fa51101186e04414f0e475a3adc596de65a5a519b8f00c3f2575a848a8