[INFO] cloning repository https://github.com/txstate-etc/mediadepot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/txstate-etc/mediadepot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftxstate-etc%2Fmediadepot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftxstate-etc%2Fmediadepot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eaa32fb1b43c111975704e04b2f638b7592a3193
[INFO] testing txstate-etc/mediadepot against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftxstate-etc%2Fmediadepot" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/txstate-etc/mediadepot 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/txstate-etc/mediadepot
[INFO] finished tweaking git repo https://github.com/txstate-etc/mediadepot
[INFO] tweaked toml for git repo https://github.com/txstate-etc/mediadepot written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/txstate-etc/mediadepot 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded checked v0.5.0
[INFO] [stderr]   Downloaded hyper-rustls v0.16.0
[INFO] [stderr]   Downloaded tokio-rustls v0.9.0
[INFO] [stderr]   Downloaded proc-macro-hack-impl v0.4.1
[INFO] [stderr]   Downloaded proc-macro-hack v0.4.1
[INFO] [stderr]   Downloaded atoi v0.2.3
[INFO] [stderr]   Downloaded handlebars v1.0.5
[INFO] [stderr]   Downloaded hyper v0.12.23
[INFO] [stderr]   Downloaded maud_macros v0.19.0
[INFO] [stderr]   Downloaded tokio-async-await v0.1.5
[INFO] [stderr]   Downloaded maud v0.19.0
[INFO] [stderr]   Downloaded rustls v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 36146e1868389dfe499f942e33e6a39ac7d78c9aaad3119336085d650395b358
[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" "36146e1868389dfe499f942e33e6a39ac7d78c9aaad3119336085d650395b358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36146e1868389dfe499f942e33e6a39ac7d78c9aaad3119336085d650395b358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36146e1868389dfe499f942e33e6a39ac7d78c9aaad3119336085d650395b358", kill_on_drop: false }`
[INFO] [stdout] 36146e1868389dfe499f942e33e6a39ac7d78c9aaad3119336085d650395b358
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] d5d797bd6d724e44920ef53c74fc2b0ce57028d11068593bce623643e6a691b2
[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" "d5d797bd6d724e44920ef53c74fc2b0ce57028d11068593bce623643e6a691b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.25
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling spin v0.5.0
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.1
[INFO] [stderr]    Compiling opaque-debug v0.2.2
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling literalext v0.1.1
[INFO] [stderr]    Compiling maud_htmlescape v0.17.0
[INFO] [stderr]    Compiling humansize v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling block-padding v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]    Compiling smallvec v0.6.8
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/literalext-0.1.1/src/lib.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![cfg_attr(feature = "proc-macro", feature(proc_macro))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `proc_macro` has been stable since 1.29.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling base64 v0.6.0
[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 `literalext` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.25/src/lib.rs:161:34
[INFO] [stdout]     |
[INFO] [stdout] 161 | #![cfg_attr(feature = "nightly", feature(pin))]
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "d5d797bd6d724e44920ef53c74fc2b0ce57028d11068593bce623643e6a691b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5d797bd6d724e44920ef53c74fc2b0ce57028d11068593bce623643e6a691b2", kill_on_drop: false }`
[INFO] [stdout] d5d797bd6d724e44920ef53c74fc2b0ce57028d11068593bce623643e6a691b2