[INFO] cloning repository https://github.com/mtoohey31/spaced
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mtoohey31/spaced" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtoohey31%2Fspaced", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtoohey31%2Fspaced'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f29028395da5a785b7c383c758f674e508f63f8
[INFO] testing mtoohey31/spaced against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtoohey31%2Fspaced" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mtoohey31/spaced 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 git repo https://github.com/mtoohey31/spaced
[INFO] finished tweaking git repo https://github.com/mtoohey31/spaced
[INFO] tweaked toml for git repo https://github.com/mtoohey31/spaced written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mtoohey31/spaced 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_complete v3.1.1
[INFO] [stderr]   Downloaded zip v0.6.0
[INFO] [stderr]   Downloaded try_map v0.3.1
[INFO] [stderr]   Downloaded libsqlite3-sys v0.24.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 39741c2ab2409af4d22b4a90ca27363ddffb9eb7193bcc34de77ada31dae97a7
[INFO] running `Command { std: "docker" "start" "-a" "39741c2ab2409af4d22b4a90ca27363ddffb9eb7193bcc34de77ada31dae97a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39741c2ab2409af4d22b4a90ca27363ddffb9eb7193bcc34de77ada31dae97a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39741c2ab2409af4d22b4a90ca27363ddffb9eb7193bcc34de77ada31dae97a7", kill_on_drop: false }`
[INFO] [stdout] 39741c2ab2409af4d22b4a90ca27363ddffb9eb7193bcc34de77ada31dae97a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 2b2b8529bfb9463a107f88ca8950decb3c657c4d819b47dd8bc9eef26a76d2a5
[INFO] running `Command { std: "docker" "start" "-a" "2b2b8529bfb9463a107f88ca8950decb3c657c4d819b47dd8bc9eef26a76d2a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling zstd-safe v4.1.4+zstd.1.5.2
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling base64ct v1.0.1
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling num_threads v0.1.5
[INFO] [stderr]    Compiling smawk v0.3.1
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling try_map v0.3.1
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling unicode-linebreak v0.1.2
[INFO] [stderr]    Compiling password-hash v0.3.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.24.1
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling clap v3.1.6
[INFO] [stderr]    Compiling crypto-common v0.1.3
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling cipher v0.3.0
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling aes v0.7.5
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling signal-hook-mio v0.2.1
[INFO] [stderr]    Compiling sha2 v0.10.2
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling sha1 v0.10.1
[INFO] [stderr]    Compiling crossterm v0.23.1
[INFO] [stderr]    Compiling hashlink v0.7.0
[INFO] [stderr]    Compiling zstd-sys v1.6.3+zstd.1.5.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling pbkdf2 v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling rusqlite v0.27.0
[INFO] [stderr]    Compiling serde_yaml v0.8.21
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling bzip2 v0.4.3
[INFO] [stderr]    Compiling clap_complete v3.1.1
[INFO] [stderr]    Compiling spaced v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling zstd v0.10.0+zstd.1.5.2
[INFO] [stderr]    Compiling zip v0.6.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/main.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | #![feature(iter_intersperse)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spaced` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2b2b8529bfb9463a107f88ca8950decb3c657c4d819b47dd8bc9eef26a76d2a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b2b8529bfb9463a107f88ca8950decb3c657c4d819b47dd8bc9eef26a76d2a5", kill_on_drop: false }`
[INFO] [stdout] 2b2b8529bfb9463a107f88ca8950decb3c657c4d819b47dd8bc9eef26a76d2a5