[INFO] cloning repository https://github.com/LordGoatius/cubers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LordGoatius/cubers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLordGoatius%2Fcubers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLordGoatius%2Fcubers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ebbb6091230d07d0335a262c1d3e19aab6f09b6
[INFO] checking LordGoatius/cubers against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLordGoatius%2Fcubers" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/LordGoatius/cubers
[INFO] finished tweaking git repo https://github.com/LordGoatius/cubers
[INFO] tweaked toml for git repo https://github.com/LordGoatius/cubers written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LordGoatius/cubers 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/LordGoatius/cubers 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]  Downloading crates ...
[INFO] [stderr]   Downloaded numtoa v0.2.4
[INFO] [stderr]   Downloaded redox_syscall v0.5.10
[INFO] [stderr]   Downloaded termion v4.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 10e2f31a80972fa6d032e7c658c473993b35c9f5ea0efd49244c5f23c9866ae5
[INFO] running `Command { std: "docker" "start" "-a" "10e2f31a80972fa6d032e7c658c473993b35c9f5ea0efd49244c5f23c9866ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10e2f31a80972fa6d032e7c658c473993b35c9f5ea0efd49244c5f23c9866ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10e2f31a80972fa6d032e7c658c473993b35c9f5ea0efd49244c5f23c9866ae5", kill_on_drop: false }`
[INFO] [stdout] 10e2f31a80972fa6d032e7c658c473993b35c9f5ea0efd49244c5f23c9866ae5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4d2334a2b01f33a84f6f665e5a0cb31f2476ebb880a412d1ec2d1c306c003044
[INFO] running `Command { std: "docker" "start" "-a" "4d2334a2b01f33a84f6f665e5a0cb31f2476ebb880a412d1ec2d1c306c003044", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]     Checking numtoa v0.2.4
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking termion v4.0.4
[INFO] [stderr]     Checking cubers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(f128, mpmc_channel)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(f128, mpmc_channel)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `choice` is never read
[INFO] [stdout]   --> src/main.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut choice = 0;
[INFO] [stdout]    |                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cubers` (bin "cubers") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: value assigned to `choice` is never read
[INFO] [stdout]   --> src/main.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut choice = 0;
[INFO] [stdout]    |                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cubers` (bin "cubers" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "4d2334a2b01f33a84f6f665e5a0cb31f2476ebb880a412d1ec2d1c306c003044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d2334a2b01f33a84f6f665e5a0cb31f2476ebb880a412d1ec2d1c306c003044", kill_on_drop: false }`
[INFO] [stdout] 4d2334a2b01f33a84f6f665e5a0cb31f2476ebb880a412d1ec2d1c306c003044
