[INFO] fetching crate red-editor 0.2.1...
[INFO] testing red-editor-0.2.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate red-editor 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate red-editor 0.2.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate red-editor 0.2.1
[INFO] finished tweaking crates.io crate red-editor 0.2.1
[INFO] tweaked toml for crates.io crate red-editor 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd625a0d67ee7c889f3042da0518d3ac7c8c3228cd742e673ad891fe80b7f7f0
[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" "cd625a0d67ee7c889f3042da0518d3ac7c8c3228cd742e673ad891fe80b7f7f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd625a0d67ee7c889f3042da0518d3ac7c8c3228cd742e673ad891fe80b7f7f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd625a0d67ee7c889f3042da0518d3ac7c8c3228cd742e673ad891fe80b7f7f0", kill_on_drop: false }`
[INFO] [stdout] cd625a0d67ee7c889f3042da0518d3ac7c8c3228cd742e673ad891fe80b7f7f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ca8f797300f3801163a8a4d239280981ccf536ae695edc620564b8b3c5d4451
[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" "2ca8f797300f3801163a8a4d239280981ccf536ae695edc620564b8b3c5d4451", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling exitfailure v0.5.1
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling rustyline v2.1.0
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustyline-2.1.0/src/lib.rs:639:43
[INFO] [stdout]     |
[INFO] [stdout] 639 |             editor.add_history_entry(line.as_ref());
[INFO] [stdout]     |                                      -----^^^^^^--
[INFO] [stdout]     |                                      |    |
[INFO] [stdout]     |                                      |    cannot infer type for type parameter `T` declared on the trait `AsRef`
[INFO] [stdout]     |                                      this method call resolves to `&T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `String: AsRef<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustyline-2.1.0/src/history.rs:150:33
[INFO] [stdout]     |
[INFO] [stdout] 150 |             self.add(try!(line).as_ref()); // TODO truncate to MAX_LINE
[INFO] [stdout]     |                      -----------^^^^^^--
[INFO] [stdout]     |                      |          |
[INFO] [stdout]     |                      |          cannot infer type for type parameter `T` declared on the trait `AsRef`
[INFO] [stdout]     |                      this method call resolves to `&T`
[INFO] [stdout]     |
[INFO] [stdout]     = note: cannot satisfy `String: AsRef<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustyline`
[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] running `Command { std: "docker" "inspect" "2ca8f797300f3801163a8a4d239280981ccf536ae695edc620564b8b3c5d4451", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca8f797300f3801163a8a4d239280981ccf536ae695edc620564b8b3c5d4451", kill_on_drop: false }`
[INFO] [stdout] 2ca8f797300f3801163a8a4d239280981ccf536ae695edc620564b8b3c5d4451