[INFO] fetching crate rio_rt 0.1.0-alpha.2...
[INFO] building rio_rt-0.1.0-alpha.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rio_rt 0.1.0-alpha.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rio_rt 0.1.0-alpha.2
[INFO] finished tweaking crates.io crate rio_rt 0.1.0-alpha.2
[INFO] tweaked toml for crates.io crate rio_rt 0.1.0-alpha.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rio_rt 0.1.0-alpha.2 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4701e1b7b180c08623540f34072fb1e49ff8ae1e6d7496addb1a534fe8a43c19
[INFO] running `Command { std: "docker" "start" "-a" "4701e1b7b180c08623540f34072fb1e49ff8ae1e6d7496addb1a534fe8a43c19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4701e1b7b180c08623540f34072fb1e49ff8ae1e6d7496addb1a534fe8a43c19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4701e1b7b180c08623540f34072fb1e49ff8ae1e6d7496addb1a534fe8a43c19", kill_on_drop: false }`
[INFO] [stdout] 4701e1b7b180c08623540f34072fb1e49ff8ae1e6d7496addb1a534fe8a43c19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ce3075196b7576b32bcafa6fe3020e630a87084604810bc4138c9191896cf10
[INFO] running `Command { std: "docker" "start" "-a" "7ce3075196b7576b32bcafa6fe3020e630a87084604810bc4138c9191896cf10", kill_on_drop: false }`
[INFO] [stderr]    Compiling rio_rt v0.1.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `once_cell` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(once_cell)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "7ce3075196b7576b32bcafa6fe3020e630a87084604810bc4138c9191896cf10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce3075196b7576b32bcafa6fe3020e630a87084604810bc4138c9191896cf10", kill_on_drop: false }`
[INFO] [stdout] 7ce3075196b7576b32bcafa6fe3020e630a87084604810bc4138c9191896cf10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c2c322f252bcad6abf98dd11c230b6aefe026f830f308a0692b6a391683205c
[INFO] running `Command { std: "docker" "start" "-a" "1c2c322f252bcad6abf98dd11c230b6aefe026f830f308a0692b6a391683205c", kill_on_drop: false }`
[INFO] [stdout] warning: the feature `once_cell` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(once_cell)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rio_rt v0.1.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `once_cell` has been stable since 1.70.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(once_cell)]
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "1c2c322f252bcad6abf98dd11c230b6aefe026f830f308a0692b6a391683205c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2c322f252bcad6abf98dd11c230b6aefe026f830f308a0692b6a391683205c", kill_on_drop: false }`
[INFO] [stdout] 1c2c322f252bcad6abf98dd11c230b6aefe026f830f308a0692b6a391683205c