[INFO] cloning repository https://github.com/davidneumann/rust-glyph-recog
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidneumann/rust-glyph-recog" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidneumann%2Frust-glyph-recog", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidneumann%2Frust-glyph-recog'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] deb8adf86c26494330af38b4e02a11d7495ed88b
[INFO] checking davidneumann/rust-glyph-recog against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidneumann%2Frust-glyph-recog" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  48% (7492/15600)
Updating files:  49% (7644/15600)
Updating files:  50% (7800/15600)
Updating files:  51% (7956/15600)
Updating files:  52% (8112/15600)
Updating files:  53% (8268/15600)
Updating files:  54% (8424/15600)
Updating files:  55% (8580/15600)
Updating files:  56% (8736/15600)
Updating files:  57% (8892/15600)
Updating files:  58% (9048/15600)
Updating files:  59% (9204/15600)
Updating files:  60% (9360/15600)
Updating files:  61% (9516/15600)
Updating files:  62% (9672/15600)
Updating files:  63% (9828/15600)
Updating files:  64% (9984/15600)
Updating files:  65% (10140/15600)
Updating files:  66% (10296/15600)
Updating files:  67% (10452/15600)
Updating files:  68% (10608/15600)
Updating files:  69% (10764/15600)
Updating files:  70% (10920/15600)
Updating files:  71% (11076/15600)
Updating files:  72% (11232/15600)
Updating files:  73% (11388/15600)
Updating files:  74% (11544/15600)
Updating files:  75% (11700/15600)
Updating files:  76% (11856/15600)
Updating files:  77% (12012/15600)
Updating files:  78% (12168/15600)
Updating files:  79% (12324/15600)
Updating files:  80% (12480/15600)
Updating files:  81% (12636/15600)
Updating files:  82% (12792/15600)
Updating files:  83% (12948/15600)
Updating files:  84% (13104/15600)
Updating files:  85% (13260/15600)
Updating files:  86% (13416/15600)
Updating files:  87% (13572/15600)
Updating files:  88% (13728/15600)
Updating files:  89% (13884/15600)
Updating files:  90% (14040/15600)
Updating files:  91% (14196/15600)
Updating files:  92% (14352/15600)
Updating files:  93% (14508/15600)
Updating files:  94% (14664/15600)
Updating files:  95% (14820/15600)
Updating files:  96% (14976/15600)
Updating files:  97% (15132/15600)
Updating files:  98% (15288/15600)
Updating files:  99% (15444/15600)
Updating files: 100% (15600/15600)
Updating files: 100% (15600/15600), done.
[INFO] validating manifest of git repo https://github.com/davidneumann/rust-glyph-recog 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/davidneumann/rust-glyph-recog
[INFO] finished tweaking git repo https://github.com/davidneumann/rust-glyph-recog
[INFO] tweaked toml for git repo https://github.com/davidneumann/rust-glyph-recog written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/davidneumann/rust-glyph-recog 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 2db0ada097f284bc5450bf600935016cecde85e51c1846fe54bcf83c69df9806
[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" "2db0ada097f284bc5450bf600935016cecde85e51c1846fe54bcf83c69df9806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2db0ada097f284bc5450bf600935016cecde85e51c1846fe54bcf83c69df9806", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2db0ada097f284bc5450bf600935016cecde85e51c1846fe54bcf83c69df9806", kill_on_drop: false }`
[INFO] [stdout] 2db0ada097f284bc5450bf600935016cecde85e51c1846fe54bcf83c69df9806
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20b715f00e94cc6ded5f3711b2f8581bf29d176494a853a55f81e1b999678c19
[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" "20b715f00e94cc6ded5f3711b2f8581bf29d176494a853a55f81e1b999678c19", kill_on_drop: false }`
[INFO] [stderr]     Checking trees v0.4.2
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking rust-glyph-recog v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-glyph-recog` 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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "20b715f00e94cc6ded5f3711b2f8581bf29d176494a853a55f81e1b999678c19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b715f00e94cc6ded5f3711b2f8581bf29d176494a853a55f81e1b999678c19", kill_on_drop: false }`
[INFO] [stdout] 20b715f00e94cc6ded5f3711b2f8581bf29d176494a853a55f81e1b999678c19
