[INFO] updating cached repository https://github.com/aknuds1/decentralized-meetup
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 602b627f32c04b47ce6be8a1562e42bb8a628cb2
[INFO] testing aknuds1/decentralized-meetup against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Faknuds1%2Fdecentralized-meetup" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aknuds1/decentralized-meetup on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/aknuds1/decentralized-meetup
[INFO] finished tweaking git repo https://github.com/aknuds1/decentralized-meetup
[INFO] tweaked toml for git repo https://github.com/aknuds1/decentralized-meetup written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/aknuds1/decentralized-meetup already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] ebfa1610043898dcb8efecff225c0cdb2e3c6c4ffc77a06bd341d4668961eeec
[INFO] running `"docker" "start" "-a" "ebfa1610043898dcb8efecff225c0cdb2e3c6c4ffc77a06bd341d4668961eeec"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.15
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling smallvec v0.6.9
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling futures v0.1.26
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling string v0.1.3
[INFO] [stderr]    Compiling try-lock v0.2.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling safemem v0.3.0
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling route-recognizer v0.1.12
[INFO] [stderr]    Compiling literalext v0.1.1
[INFO] [stderr]    Compiling maud_htmlescape v0.17.0 (https://github.com/aknuds1/maud?rev=69d25d0b9a3152008588de1eec00f452d1e68127#69d25d0b)
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling tokio-trace-core v0.1.0
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/literalext-0.1.1/src/lib.rs:19:37
[INFO] [stderr]    |
[INFO] [stderr] 19 | #![cfg_attr(feature = "proc-macro", feature(proc_macro))]
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.15
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `literalext`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ebfa1610043898dcb8efecff225c0cdb2e3c6c4ffc77a06bd341d4668961eeec"`
[INFO] running `"docker" "rm" "-f" "ebfa1610043898dcb8efecff225c0cdb2e3c6c4ffc77a06bd341d4668961eeec"`
[INFO] [stdout] ebfa1610043898dcb8efecff225c0cdb2e3c6c4ffc77a06bd341d4668961eeec