[INFO] fetching crate tobaru 0.7.1...
[INFO] testing tobaru-0.7.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate tobaru 0.7.1 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate tobaru 0.7.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tobaru 0.7.1
[INFO] finished tweaking crates.io crate tobaru 0.7.1
[INFO] tweaked toml for crates.io crate tobaru 0.7.1 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate tobaru 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inotify-sys v0.1.5
[INFO] [stderr]   Downloaded kqueue-sys v1.0.3
[INFO] [stderr]   Downloaded tokio-rustls v0.23.2
[INFO] [stderr]   Downloaded notify v5.0.0-pre.13
[INFO] [stderr]   Downloaded treebitmap v0.4.0
[INFO] [stderr]   Downloaded kqueue v1.0.4
[INFO] [stderr]   Downloaded inotify v0.9.6
[INFO] [stderr]   Downloaded fsevent-sys v4.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70184454b3ee4b66383458993bea9bf0653ec22144d38464b56bf20419c79f72
[INFO] running `Command { std: "docker" "start" "-a" "70184454b3ee4b66383458993bea9bf0653ec22144d38464b56bf20419c79f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70184454b3ee4b66383458993bea9bf0653ec22144d38464b56bf20419c79f72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70184454b3ee4b66383458993bea9bf0653ec22144d38464b56bf20419c79f72", kill_on_drop: false }`
[INFO] [stdout] 70184454b3ee4b66383458993bea9bf0653ec22144d38464b56bf20419c79f72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3b705f98d7b8ec153053cc0daa98b2b732a7f6f5350bcf714d22448bd44e663
[INFO] running `Command { std: "docker" "start" "-a" "c3b705f98d7b8ec153053cc0daa98b2b732a7f6f5350bcf714d22448bd44e663", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling ipnet v2.3.1
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling treebitmap v0.4.0
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling rustls-pemfile v0.3.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling notify v5.0.0-pre.13
[INFO] [stderr]    Compiling webpki v0.22.0
[INFO] [stderr]    Compiling sct v0.7.0
[INFO] [stderr]    Compiling webpki-roots v0.22.2
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling tokio-rustls v0.23.2
[INFO] [stderr]    Compiling tobaru v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(build_hasher_simple_hash_one)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(once_cell)]
[INFO] [stdout]   |            ^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tobaru` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "c3b705f98d7b8ec153053cc0daa98b2b732a7f6f5350bcf714d22448bd44e663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3b705f98d7b8ec153053cc0daa98b2b732a7f6f5350bcf714d22448bd44e663", kill_on_drop: false }`
[INFO] [stdout] c3b705f98d7b8ec153053cc0daa98b2b732a7f6f5350bcf714d22448bd44e663