[INFO] cloning repository https://github.com/Gustorn/tsp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gustorn/tsp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustorn%2Ftsp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustorn%2Ftsp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 096a391667eb5b12d3abbfdff5fe277a657f9a87
[INFO] checking Gustorn/tsp against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGustorn%2Ftsp" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Gustorn/tsp on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Gustorn/tsp
[INFO] finished tweaking git repo https://github.com/Gustorn/tsp
[INFO] tweaked toml for git repo https://github.com/Gustorn/tsp written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Gustorn/tsp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-14/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/japaric/approx.rs`
[INFO] [stderr]     Updating git repository `https://github.com/japaric/float.rs`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cast v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60435152b61f0972c59cffdfb4e64e973a8031596ce28f15be0489a180638307
[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" "60435152b61f0972c59cffdfb4e64e973a8031596ce28f15be0489a180638307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60435152b61f0972c59cffdfb4e64e973a8031596ce28f15be0489a180638307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60435152b61f0972c59cffdfb4e64e973a8031596ce28f15be0489a180638307", kill_on_drop: false }`
[INFO] [stdout] 60435152b61f0972c59cffdfb4e64e973a8031596ce28f15be0489a180638307
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b08969bb7dcecaca8353ff6a6120b9c588c4f0c05e3e4a42ae3aa780532548e4
[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" "b08969bb7dcecaca8353ff6a6120b9c588c4f0c05e3e4a42ae3aa780532548e4", kill_on_drop: false }`
[INFO] [stderr]     Checking cast v0.1.0
[INFO] [stderr]     Checking timeit v0.1.2
[INFO] [stderr]     Checking floaty v0.1.0 (https://github.com/japaric/float.rs#83c05c3f)
[INFO] [stderr]     Checking approx v0.0.0 (https://github.com/japaric/approx.rs#b2024ba2)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/approx.rs-39c842a0a84d5e90/b2024ba/src/lib.rs:64:1
[INFO] [stdout]    |
[INFO] [stdout] 64 | #![feature(plugin)]
[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 `approx`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b08969bb7dcecaca8353ff6a6120b9c588c4f0c05e3e4a42ae3aa780532548e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b08969bb7dcecaca8353ff6a6120b9c588c4f0c05e3e4a42ae3aa780532548e4", kill_on_drop: false }`
[INFO] [stdout] b08969bb7dcecaca8353ff6a6120b9c588c4f0c05e3e4a42ae3aa780532548e4