[INFO] fetching crate fallible-option 0.1.3...
[INFO] testing fallible-option-0.1.3 against 1.69.0 for beta-1.70-1
[INFO] extracting crate fallible-option 0.1.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate fallible-option 0.1.3 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fallible-option 0.1.3
[INFO] finished tweaking crates.io crate fallible-option 0.1.3
[INFO] tweaked toml for crates.io crate fallible-option 0.1.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4abea6492b05d5695a115172df45cb958db2819b1233a065218e22823d0ae2e5
[INFO] running `Command { std: "docker" "start" "-a" "4abea6492b05d5695a115172df45cb958db2819b1233a065218e22823d0ae2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4abea6492b05d5695a115172df45cb958db2819b1233a065218e22823d0ae2e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4abea6492b05d5695a115172df45cb958db2819b1233a065218e22823d0ae2e5", kill_on_drop: false }`
[INFO] [stdout] 4abea6492b05d5695a115172df45cb958db2819b1233a065218e22823d0ae2e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59fa8ec4e07d8c4db33cbb6ed3ec268d41b537108f9b4a9ebc8f508e6250e08a
[INFO] running `Command { std: "docker" "start" "-a" "59fa8ec4e07d8c4db33cbb6ed3ec268d41b537108f9b4a9ebc8f508e6250e08a", kill_on_drop: false }`
[INFO] [stderr]    Compiling fallible-option v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:175:1
[INFO] [stdout]     |
[INFO] [stdout] 175 | #![feature(try_trait_v2)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:176:1
[INFO] [stdout]     |
[INFO] [stdout] 176 | #![feature(const_trait_impl)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:177:1
[INFO] [stdout]     |
[INFO] [stdout] 177 | #![feature(const_mut_refs)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:178:1
[INFO] [stdout]     |
[INFO] [stdout] 178 | #![feature(const_replace)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:175:12
[INFO] [stdout]     |
[INFO] [stdout] 175 | #![feature(try_trait_v2)]
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:178:12
[INFO] [stdout]     |
[INFO] [stdout] 178 | #![feature(const_replace)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fallible-option` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "59fa8ec4e07d8c4db33cbb6ed3ec268d41b537108f9b4a9ebc8f508e6250e08a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59fa8ec4e07d8c4db33cbb6ed3ec268d41b537108f9b4a9ebc8f508e6250e08a", kill_on_drop: false }`
[INFO] [stdout] 59fa8ec4e07d8c4db33cbb6ed3ec268d41b537108f9b4a9ebc8f508e6250e08a
