[INFO] fetching crate expr 0.0.1...
[INFO] checking expr-0.0.1 against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] extracting crate expr 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate expr 0.0.1 on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate expr 0.0.1
[INFO] finished tweaking crates.io crate expr 0.0.1
[INFO] tweaked toml for crates.io crate expr 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "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" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9677b748249b2f16ec409db78be8d3d5b22c668590510d56b68cc972a7380689
[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" "9677b748249b2f16ec409db78be8d3d5b22c668590510d56b68cc972a7380689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9677b748249b2f16ec409db78be8d3d5b22c668590510d56b68cc972a7380689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9677b748249b2f16ec409db78be8d3d5b22c668590510d56b68cc972a7380689", kill_on_drop: false }`
[INFO] [stdout] 9677b748249b2f16ec409db78be8d3d5b22c668590510d56b68cc972a7380689
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 52cfd443536acfc83a3f4db1f385f42298fc116093d048483cdb6e91b95bf8b0
[INFO] running `Command { std: "docker" "start" "-a" "52cfd443536acfc83a3f4db1f385f42298fc116093d048483cdb6e91b95bf8b0", kill_on_drop: false }`
[INFO] [stderr]     Checking expr v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]    --> src/expr.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |         if token[].contains(".") {
[INFO] [stdout]     |                  ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]    --> src/expr.rs:317:37
[INFO] [stdout]     |
[INFO] [stdout] 317 |     pub fn set_variables(&mut self, f: |&str| -> Val<T>) {
[INFO] [stdout]     |                                        ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]    --> src/expr.rs:319:39
[INFO] [stdout]     |
[INFO] [stdout] 319 |             self.variables[*idx] = Some(f(name[]));
[INFO] [stdout]     |                                                ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `regex`
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate regex;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]    --> src/expr.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 163 |         if token[].contains(".") {
[INFO] [stdout]     |                  ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `|`
[INFO] [stdout]    --> src/expr.rs:317:37
[INFO] [stdout]     |
[INFO] [stdout] 317 |     pub fn set_variables(&mut self, f: |&str| -> Val<T>) {
[INFO] [stdout]     |                                        ^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]    --> src/expr.rs:319:39
[INFO] [stdout]     |
[INFO] [stdout] 319 |             self.variables[*idx] = Some(f(name[]));
[INFO] [stdout]     |                                                ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `expr`
[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] [stdout] error[E0463]: can't find crate for `regex`
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | extern crate regex;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "52cfd443536acfc83a3f4db1f385f42298fc116093d048483cdb6e91b95bf8b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52cfd443536acfc83a3f4db1f385f42298fc116093d048483cdb6e91b95bf8b0", kill_on_drop: false }`
[INFO] [stdout] 52cfd443536acfc83a3f4db1f385f42298fc116093d048483cdb6e91b95bf8b0