[INFO] cloning repository https://github.com/scole66/rust-e262
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scole66/rust-e262" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscole66%2Frust-e262", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscole66%2Frust-e262'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e50c4901dc5c9501982e1b4c78a2667dce3df7e2
[INFO] testing scole66/rust-e262 against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscole66%2Frust-e262" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/scole66/rust-e262 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/scole66/rust-e262
[INFO] finished tweaking git repo https://github.com/scole66/rust-e262
[INFO] tweaked toml for git repo https://github.com/scole66/rust-e262 written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/scole66/rust-e262 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9194e4cb10fffeace760a8ca4a35ab36d0e41f7c3e48f84e422c93acab0c79b
[INFO] running `Command { std: "docker" "start" "-a" "f9194e4cb10fffeace760a8ca4a35ab36d0e41f7c3e48f84e422c93acab0c79b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9194e4cb10fffeace760a8ca4a35ab36d0e41f7c3e48f84e422c93acab0c79b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9194e4cb10fffeace760a8ca4a35ab36d0e41f7c3e48f84e422c93acab0c79b", kill_on_drop: false }`
[INFO] [stdout] f9194e4cb10fffeace760a8ca4a35ab36d0e41f7c3e48f84e422c93acab0c79b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1d548436905233e9068a0a3d61b3ddd031a5dffc2a8791b854e61bcad51a369
[INFO] running `Command { std: "docker" "start" "-a" "f1d548436905233e9068a0a3d61b3ddd031a5dffc2a8791b854e61bcad51a369", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling uid v0.1.7
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling res v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(ptr_metadata)]
[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 `res` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f1d548436905233e9068a0a3d61b3ddd031a5dffc2a8791b854e61bcad51a369", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1d548436905233e9068a0a3d61b3ddd031a5dffc2a8791b854e61bcad51a369", kill_on_drop: false }`
[INFO] [stdout] f1d548436905233e9068a0a3d61b3ddd031a5dffc2a8791b854e61bcad51a369