[INFO] cloning repository https://github.com/chinatsu/experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chinatsu/experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinatsu%2Fexperiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinatsu%2Fexperiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c6486f1df91fb191df2499b66b0f65cfef6fde5
[INFO] testing chinatsu/experiments against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinatsu%2Fexperiments" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chinatsu/experiments on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chinatsu/experiments
[INFO] finished tweaking git repo https://github.com/chinatsu/experiments
[INFO] tweaked toml for git repo https://github.com/chinatsu/experiments written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/chinatsu/experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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 hyper v0.14.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6028db5726f4659b59bdbf2278acfc1d403cb0ef640ab9a3e2be61d4404b40d6
[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" "6028db5726f4659b59bdbf2278acfc1d403cb0ef640ab9a3e2be61d4404b40d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6028db5726f4659b59bdbf2278acfc1d403cb0ef640ab9a3e2be61d4404b40d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6028db5726f4659b59bdbf2278acfc1d403cb0ef640ab9a3e2be61d4404b40d6", kill_on_drop: false }`
[INFO] [stdout] 6028db5726f4659b59bdbf2278acfc1d403cb0ef640ab9a3e2be61d4404b40d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aeb821c6c2720493402a73013e7edce6ce32e0f976720c11dad9606c4da65636
[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" "aeb821c6c2720493402a73013e7edce6ce32e0f976720c11dad9606c4da65636", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling futures-core v0.3.14
[INFO] [stderr]    Compiling futures-sink v0.3.14
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling const_fn v0.4.7
[INFO] [stderr]    Compiling inlinable_string v0.1.14
[INFO] [stderr]    Compiling httpdate v1.0.0
[INFO] [stderr]    Compiling state v0.4.2 (https://github.com/SergioBenitez/state.git?rev=8f94dc#8f94dce6)
[INFO] [stderr]    Compiling unchecked-index v0.2.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling binascii v0.1.4
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling cookie v0.15.0
[INFO] [stderr]    Compiling figment v0.10.5
[INFO] [stderr]    Compiling multer v1.2.2 (https://github.com/rousan/multer-rs.git?rev=7e4f0c5f#7e4f0c5f)
[INFO] [stderr]    Compiling rocket v0.5.0-dev (https://github.com/SergioBenitez/Rocket#e1307ddf)
[INFO] [stderr]    Compiling futures-channel v0.3.14
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]    Compiling http-body v0.4.1
[INFO] [stderr]    Compiling stable-pattern v0.1.0
[INFO] [stderr]    Compiling twoway v0.2.1
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling devise_core v0.3.0 (https://github.com/SergioBenitez/Devise.git?rev=df00b5#df00b516)
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling pear_codegen v0.2.2
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling devise_codegen v0.3.0 (https://github.com/SergioBenitez/Devise.git?rev=df00b5#df00b516)
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling devise v0.3.0 (https://github.com/SergioBenitez/Devise.git?rev=df00b5#df00b516)
[INFO] [stderr]    Compiling futures-util v0.3.14
[INFO] [stderr]    Compiling pear v0.2.2
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling futures-executor v0.3.14
[INFO] [stderr]    Compiling futures v0.3.14
[INFO] [stderr]    Compiling tokio-util v0.6.6
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling ubyte v0.10.1
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling h2 v0.3.2
[INFO] [stderr]    Compiling hyper v0.14.6
[INFO] [stderr]    Compiling rocket_http v0.5.0-dev (https://github.com/SergioBenitez/Rocket#e1307ddf)
[INFO] [stderr]    Compiling rocket_codegen v0.5.0-dev (https://github.com/SergioBenitez/Rocket#e1307ddf)
[INFO] [stderr]    Compiling rocket_contrib v0.5.0-dev (https://github.com/SergioBenitez/Rocket#e1307ddf)
[INFO] [stderr]    Compiling experiments v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene, decl_macro)]
[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 `experiments`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "aeb821c6c2720493402a73013e7edce6ce32e0f976720c11dad9606c4da65636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeb821c6c2720493402a73013e7edce6ce32e0f976720c11dad9606c4da65636", kill_on_drop: false }`
[INFO] [stdout] aeb821c6c2720493402a73013e7edce6ce32e0f976720c11dad9606c4da65636
