[INFO] cloning repository https://github.com/Multimo/rusty-chat-tute
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Multimo/rusty-chat-tute" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMultimo%2Frusty-chat-tute", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMultimo%2Frusty-chat-tute'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b975b49e350895861a87b47175ee6e3dbef6ca2
[INFO] testing Multimo/rusty-chat-tute against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMultimo%2Frusty-chat-tute" "/workspace/builds/worker-47/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-47/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Multimo/rusty-chat-tute 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/Multimo/rusty-chat-tute
[INFO] finished tweaking git repo https://github.com/Multimo/rusty-chat-tute
[INFO] tweaked toml for git repo https://github.com/Multimo/rusty-chat-tute written to /workspace/builds/worker-47/source/Cargo.toml
[INFO] crate git repo https://github.com/Multimo/rusty-chat-tute 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] 53275fc30e886b7637d01a798683cf06c88673ff8c9828708514383205084394
[INFO] running `Command { std: "docker" "start" "-a" "53275fc30e886b7637d01a798683cf06c88673ff8c9828708514383205084394", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53275fc30e886b7637d01a798683cf06c88673ff8c9828708514383205084394", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53275fc30e886b7637d01a798683cf06c88673ff8c9828708514383205084394", kill_on_drop: false }`
[INFO] [stdout] 53275fc30e886b7637d01a798683cf06c88673ff8c9828708514383205084394
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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] 3c59c89b979f365be14e529a59a08f42c80f18649c5127167e9c2e58ad298992
[INFO] running `Command { std: "docker" "start" "-a" "3c59c89b979f365be14e529a59a08f42c80f18649c5127167e9c2e58ad298992", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.39
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling futures v0.1.18
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.5
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]    Compiling arrayref v0.3.4
[INFO] [stderr]    Compiling constant_time_eq v0.1.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling pq-sys v0.4.4
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling scoped-tls v0.1.1
[INFO] [stderr]    Compiling md5 v0.3.7
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling regex v0.2.9
[INFO] [stderr]    Compiling fallible-iterator v0.1.4
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling maud_htmlescape v0.17.0
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling quick-error v1.2.1
[INFO] [stderr]    Compiling hex v0.2.0
[INFO] [stderr]    Compiling literalext v0.1.1
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling termcolor v0.3.5
[INFO] [stderr]    Compiling httparse v1.2.4
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling serde v1.0.35
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[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 phf_shared v0.7.21
[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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3c59c89b979f365be14e529a59a08f42c80f18649c5127167e9c2e58ad298992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c59c89b979f365be14e529a59a08f42c80f18649c5127167e9c2e58ad298992", kill_on_drop: false }`
[INFO] [stdout] 3c59c89b979f365be14e529a59a08f42c80f18649c5127167e9c2e58ad298992
