[INFO] cloning repository https://github.com/Lincyaw/os_exp_lab0to6
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lincyaw/os_exp_lab0to6" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLincyaw%2Fos_exp_lab0to6", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLincyaw%2Fos_exp_lab0to6'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54e6ee0be5c5fe7e9c71ae0b14c4ed57ad895ed0
[INFO] testing Lincyaw/os_exp_lab0to6 against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLincyaw%2Fos_exp_lab0to6" "/workspace/builds/worker-96/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-96/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/Lincyaw/os_exp_lab0to6 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-96/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Lincyaw/os_exp_lab0to6
[INFO] finished tweaking git repo https://github.com/Lincyaw/os_exp_lab0to6
[INFO] tweaked toml for git repo https://github.com/Lincyaw/os_exp_lab0to6 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] crate git repo https://github.com/Lincyaw/os_exp_lab0to6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c044395f6b3a126c16ee9be9038237fa651a5de77097ee8f9b21f0d4286ee74
[INFO] running `Command { std: "docker" "start" "-a" "1c044395f6b3a126c16ee9be9038237fa651a5de77097ee8f9b21f0d4286ee74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c044395f6b3a126c16ee9be9038237fa651a5de77097ee8f9b21f0d4286ee74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c044395f6b3a126c16ee9be9038237fa651a5de77097ee8f9b21f0d4286ee74", kill_on_drop: false }`
[INFO] [stdout] 1c044395f6b3a126c16ee9be9038237fa651a5de77097ee8f9b21f0d4286ee74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb3aedc22c96a77a4abcfc1f9729761630b692844cc00048991c091e5ef96a24
[INFO] running `Command { std: "docker" "start" "-a" "eb3aedc22c96a77a4abcfc1f9729761630b692844cc00048991c091e5ef96a24", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling radium v0.3.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling volatile v0.2.6
[INFO] [stderr]    Compiling zero v0.1.2
[INFO] [stderr]    Compiling static_assertions v0.3.4
[INFO] [stderr]    Compiling bit_field v0.10.0
[INFO] [stderr]    Compiling device_tree v1.0.3 (https://github.com/rcore-os/device_tree-rs#2fa8411c)
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling rcore-fs v0.1.0 (https://github.com/rcore-os/rcore-fs#b9aaa4c1)
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling xmas-elf v0.7.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/device_tree-rs-7c65dd35cede3b4e/2fa8411/src/lib.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | #![feature(alloc)]
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `device_tree` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rcore-fs-7fdf258332f6146d/b9aaa4c/rcore-fs/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_closure)]
[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 `rcore-fs` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "eb3aedc22c96a77a4abcfc1f9729761630b692844cc00048991c091e5ef96a24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb3aedc22c96a77a4abcfc1f9729761630b692844cc00048991c091e5ef96a24", kill_on_drop: false }`
[INFO] [stdout] eb3aedc22c96a77a4abcfc1f9729761630b692844cc00048991c091e5ef96a24