[INFO] cloning repository https://github.com/cloudsftp/TheLastAlgorithmsCourseYouWillEverNeed
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cloudsftp/TheLastAlgorithmsCourseYouWillEverNeed" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcloudsftp%2FTheLastAlgorithmsCourseYouWillEverNeed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcloudsftp%2FTheLastAlgorithmsCourseYouWillEverNeed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7fb09bd84bee1f201d300b1f330f899fae02b095
[INFO] checking cloudsftp/TheLastAlgorithmsCourseYouWillEverNeed against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcloudsftp%2FTheLastAlgorithmsCourseYouWillEverNeed" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cloudsftp/TheLastAlgorithmsCourseYouWillEverNeed
[INFO] finished tweaking git repo https://github.com/cloudsftp/TheLastAlgorithmsCourseYouWillEverNeed
[INFO] tweaked toml for git repo https://github.com/cloudsftp/TheLastAlgorithmsCourseYouWillEverNeed written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cloudsftp/TheLastAlgorithmsCourseYouWillEverNeed 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/cloudsftp/TheLastAlgorithmsCourseYouWillEverNeed 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 65b2e831b24f511757eef41714529ef73f5d654f811d83967e35c5bd01f85eb9
[INFO] running `Command { std: "docker" "start" "-a" "65b2e831b24f511757eef41714529ef73f5d654f811d83967e35c5bd01f85eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65b2e831b24f511757eef41714529ef73f5d654f811d83967e35c5bd01f85eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65b2e831b24f511757eef41714529ef73f5d654f811d83967e35c5bd01f85eb9", kill_on_drop: false }`
[INFO] [stdout] 65b2e831b24f511757eef41714529ef73f5d654f811d83967e35c5bd01f85eb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6662cd932445a5bc9a1326e6a21915726a6e8fdd33bb092cc633bfa49d09d498
[INFO] running `Command { std: "docker" "start" "-a" "6662cd932445a5bc9a1326e6a21915726a6e8fdd33bb092cc633bfa49d09d498", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking binary-tree v0.1.0 (/opt/rustwide/workdir/binary-tree)
[INFO] [stderr]     Checking binary-search v0.1.0 (/opt/rustwide/workdir/binary-search)
[INFO] [stderr]     Checking bubble-sort v0.1.0 (/opt/rustwide/workdir/bubble-sort)
[INFO] [stderr]     Checking two-crystal-balls v0.1.0 (/opt/rustwide/workdir/two-crystal-balls)
[INFO] [stderr]     Checking priority-queue v0.1.0 (/opt/rustwide/workdir/priority-queue)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> binary-tree/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `binary-tree` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> binary-tree/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `binary-tree` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6662cd932445a5bc9a1326e6a21915726a6e8fdd33bb092cc633bfa49d09d498", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6662cd932445a5bc9a1326e6a21915726a6e8fdd33bb092cc633bfa49d09d498", kill_on_drop: false }`
[INFO] [stdout] 6662cd932445a5bc9a1326e6a21915726a6e8fdd33bb092cc633bfa49d09d498
