[INFO] cloning repository https://github.com/dmaahs2017/planner-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmaahs2017/planner-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmaahs2017%2Fplanner-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmaahs2017%2Fplanner-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3a4d236001ab815ff8390663868337f89817bc2
[INFO] testing dmaahs2017/planner-rs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmaahs2017%2Fplanner-rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmaahs2017/planner-rs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmaahs2017/planner-rs
[INFO] finished tweaking git repo https://github.com/dmaahs2017/planner-rs
[INFO] tweaked toml for git repo https://github.com/dmaahs2017/planner-rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dmaahs2017/planner-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c303d26155f30ad471dfb07f2a589a9a4a6263a149e122ff678ae9ea9be9dda
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6c303d26155f30ad471dfb07f2a589a9a4a6263a149e122ff678ae9ea9be9dda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c303d26155f30ad471dfb07f2a589a9a4a6263a149e122ff678ae9ea9be9dda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c303d26155f30ad471dfb07f2a589a9a4a6263a149e122ff678ae9ea9be9dda", kill_on_drop: false }`
[INFO] [stdout] 6c303d26155f30ad471dfb07f2a589a9a4a6263a149e122ff678ae9ea9be9dda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] afdf4ed4032bb013cece404c4fdf1714166b88ac55753f0083262698ad560f19
[INFO] running `Command { std: "docker" "start" "-a" "afdf4ed4032bb013cece404c4fdf1714166b88ac55753f0083262698ad560f19", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]    Compiling textwrap v0.14.0
[INFO] [stderr]    Compiling app_dirs2 v2.3.2
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling signal-hook-mio v0.2.1
[INFO] [stderr]    Compiling crossterm v0.20.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2 (https://github.com/clap-rs/clap#89d1519f)
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling comfy-table v3.0.0
[INFO] [stderr]    Compiling clap v3.0.0-beta.2 (https://github.com/clap-rs/clap#89d1519f)
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling ron v0.6.4
[INFO] [stderr]    Compiling calendarize v1.1.0
[INFO] [stderr]    Compiling planner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(io_read_to_string)]
[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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(slice_group_by)]
[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 `planner` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "afdf4ed4032bb013cece404c4fdf1714166b88ac55753f0083262698ad560f19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afdf4ed4032bb013cece404c4fdf1714166b88ac55753f0083262698ad560f19", kill_on_drop: false }`
[INFO] [stdout] afdf4ed4032bb013cece404c4fdf1714166b88ac55753f0083262698ad560f19