[INFO] cloning repository https://github.com/KazApps/Crux
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KazApps/Crux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKazApps%2FCrux", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKazApps%2FCrux'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8eacc05f4984a08d18477167b308a73253c80892
[INFO] checking KazApps/Crux against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKazApps%2FCrux" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/KazApps/Crux
[INFO] finished tweaking git repo https://github.com/KazApps/Crux
[INFO] tweaked toml for git repo https://github.com/KazApps/Crux written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KazApps/Crux on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KazApps/Crux already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const_for v0.1.5
[INFO] [stderr]   Downloaded rand_core v0.10.1
[INFO] [stderr]   Downloaded rand v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f2b60512dbc85371d3039f8477e0454ca2418c2bf7d6012e45516b703f6eb8d
[INFO] running `Command { std: "docker" "start" "-a" "5f2b60512dbc85371d3039f8477e0454ca2418c2bf7d6012e45516b703f6eb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f2b60512dbc85371d3039f8477e0454ca2418c2bf7d6012e45516b703f6eb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f2b60512dbc85371d3039f8477e0454ca2418c2bf7d6012e45516b703f6eb8d", kill_on_drop: false }`
[INFO] [stdout] 5f2b60512dbc85371d3039f8477e0454ca2418c2bf7d6012e45516b703f6eb8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95bca809258502c670d20d5131066737414774eb8853d4e5cc6d84ca07df67ba
[INFO] running `Command { std: "docker" "start" "-a" "95bca809258502c670d20d5131066737414774eb8853d4e5cc6d84ca07df67ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]     Checking const_for v0.1.5
[INFO] [stderr]     Checking rand_core v0.10.1
[INFO] [stderr]     Checking cpufeatures v0.3.0
[INFO] [stderr]     Checking crux-trainer v0.1.0 (/opt/rustwide/workdir/crux-trainer)
[INFO] [stderr]     Checking crux-lib v0.1.0 (/opt/rustwide/workdir/crux-lib)
[INFO] [stderr]     Checking chacha20 v0.10.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> crux-lib/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_cmp)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.10.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> crux-lib/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_cmp)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crux-lib` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crux-lib` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "95bca809258502c670d20d5131066737414774eb8853d4e5cc6d84ca07df67ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95bca809258502c670d20d5131066737414774eb8853d4e5cc6d84ca07df67ba", kill_on_drop: false }`
[INFO] [stdout] 95bca809258502c670d20d5131066737414774eb8853d4e5cc6d84ca07df67ba
