[INFO] cloning repository https://github.com/ttaubert/rust-md2-collision
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ttaubert/rust-md2-collision" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttaubert%2Frust-md2-collision", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttaubert%2Frust-md2-collision'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97592077c83421e4d1e269aa7fec5c4dfbd7dae7
[INFO] checking ttaubert/rust-md2-collision against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fttaubert%2Frust-md2-collision" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ttaubert/rust-md2-collision 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/ttaubert/rust-md2-collision
[INFO] finished tweaking git repo https://github.com/ttaubert/rust-md2-collision
[INFO] tweaked toml for git repo https://github.com/ttaubert/rust-md2-collision written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ttaubert/rust-md2-collision 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] error: the lock file /workspace/builds/worker-1/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[INFO] the lockfile is outdated, regenerating it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/ttaubert/rust-md2.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] fdf488dfb49ede7fbfce0eb0f9c2dae3815831bc9409c1266d0975edc7ae2df6
[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" "fdf488dfb49ede7fbfce0eb0f9c2dae3815831bc9409c1266d0975edc7ae2df6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdf488dfb49ede7fbfce0eb0f9c2dae3815831bc9409c1266d0975edc7ae2df6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdf488dfb49ede7fbfce0eb0f9c2dae3815831bc9409c1266d0975edc7ae2df6", kill_on_drop: false }`
[INFO] [stdout] fdf488dfb49ede7fbfce0eb0f9c2dae3815831bc9409c1266d0975edc7ae2df6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] a1a4a01d191cb7507b7ecd09e50785364094aa63c33f5695ca329831a48c1330
[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" "a1a4a01d191cb7507b7ecd09e50785364094aa63c33f5695ca329831a48c1330", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-md2 v0.0.1 (https://github.com/ttaubert/rust-md2.git#e6e77fa7)
[INFO] [stderr]     Checking rust-md2-collisions v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found `"rust-md2"`
[INFO] [stdout]  --> src/lib.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate "rust-md2" as md2;
[INFO] [stdout]   |              ^^^^^^^^^^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found `"rust-md2"`
[INFO] [stdout]  --> src/lib.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | extern crate "rust-md2" as md2;
[INFO] [stdout]   |              ^^^^^^^^^^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-md2-collisions`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a1a4a01d191cb7507b7ecd09e50785364094aa63c33f5695ca329831a48c1330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1a4a01d191cb7507b7ecd09e50785364094aa63c33f5695ca329831a48c1330", kill_on_drop: false }`
[INFO] [stdout] a1a4a01d191cb7507b7ecd09e50785364094aa63c33f5695ca329831a48c1330