[INFO] cloning repository https://github.com/AdamLatos/rust-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AdamLatos/rust-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamLatos%2Frust-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamLatos%2Frust-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c599cd9bfc43de2f80f6b15bf4ebe195ccb3536e
[INFO] testing AdamLatos/rust-os against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamLatos%2Frust-os" "/workspace/builds/worker-99/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-99/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AdamLatos/rust-os on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-99/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/AdamLatos/rust-os
[INFO] finished tweaking git repo https://github.com/AdamLatos/rust-os
[INFO] tweaked toml for git repo https://github.com/AdamLatos/rust-os written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] crate git repo https://github.com/AdamLatos/rust-os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2d313335eed502e839b37cc64a9cdeaa5ecbe19024ae52a5a00b4a1cf1c29fe
[INFO] running `Command { std: "docker" "start" "-a" "e2d313335eed502e839b37cc64a9cdeaa5ecbe19024ae52a5a00b4a1cf1c29fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2d313335eed502e839b37cc64a9cdeaa5ecbe19024ae52a5a00b4a1cf1c29fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2d313335eed502e839b37cc64a9cdeaa5ecbe19024ae52a5a00b4a1cf1c29fe", kill_on_drop: false }`
[INFO] [stdout] e2d313335eed502e839b37cc64a9cdeaa5ecbe19024ae52a5a00b4a1cf1c29fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be066c81b240d21f07688db3021d96619b616e4cf875e8f9e3bc0e378d25ded4
[INFO] running `Command { std: "docker" "start" "-a" "be066c81b240d21f07688db3021d96619b616e4cf875e8f9e3bc0e378d25ded4", kill_on_drop: false }`
[INFO] [stderr]    Compiling x86_64 v0.11.1
[INFO] [stderr]    Compiling bootloader v0.9.8
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling rlibc v1.0.0
[INFO] [stderr]    Compiling volatile v0.2.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/x86_64-0.11.1/src/lib.rs:5:43
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[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]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/x86_64-0.11.1/src/lib.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "const_fn", feature(const_in_array_repeat_expressions))]
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed due to causing promotable bugs
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `x86_64` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "be066c81b240d21f07688db3021d96619b616e4cf875e8f9e3bc0e378d25ded4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be066c81b240d21f07688db3021d96619b616e4cf875e8f9e3bc0e378d25ded4", kill_on_drop: false }`
[INFO] [stdout] be066c81b240d21f07688db3021d96619b616e4cf875e8f9e3bc0e378d25ded4