[INFO] cloning repository https://github.com/jedahan/random_unicode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jedahan/random_unicode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjedahan%2Frandom_unicode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjedahan%2Frandom_unicode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79f19a488e79cd8de0aa757a7846af40de7f0aa9
[INFO] checking jedahan/random_unicode against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjedahan%2Frandom_unicode" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jedahan/random_unicode on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jedahan/random_unicode
[INFO] finished tweaking git repo https://github.com/jedahan/random_unicode
[INFO] tweaked toml for git repo https://github.com/jedahan/random_unicode written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jedahan/random_unicode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: path `/workspace/builds/worker-6/source/src/random_unicode.rs` was erroneously implicitly accepted for binary `random_unicode`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7eea6f653f8bd330c60a53c3427041f7aa69bbbc0727805f90c8f15b4c832604
[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" "7eea6f653f8bd330c60a53c3427041f7aa69bbbc0727805f90c8f15b4c832604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7eea6f653f8bd330c60a53c3427041f7aa69bbbc0727805f90c8f15b4c832604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eea6f653f8bd330c60a53c3427041f7aa69bbbc0727805f90c8f15b4c832604", kill_on_drop: false }`
[INFO] [stdout] 7eea6f653f8bd330c60a53c3427041f7aa69bbbc0727805f90c8f15b4c832604
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1700e660f1aaaa94825dd100329fccc70c723865b0b0a6117047feb1dfd1d34b
[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" "1700e660f1aaaa94825dd100329fccc70c723865b0b0a6117047feb1dfd1d34b", kill_on_drop: false }`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/random_unicode.rs` was erroneously implicitly accepted for binary `random_unicode`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking random_unicode v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]  --> src/random_unicode.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |   for u in range(std::u32::MIN, std::char::MAX as u32) {
[INFO] [stdout]   |            ^^^^^ not found in this scope
[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 E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `random_unicode`
[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[E0425]: cannot find function `range` in this scope
[INFO] [stdout]  --> src/random_unicode.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 |   for u in range(std::u32::MIN, std::char::MAX as u32) {
[INFO] [stdout]   |            ^^^^^ not found in this scope
[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 E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1700e660f1aaaa94825dd100329fccc70c723865b0b0a6117047feb1dfd1d34b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1700e660f1aaaa94825dd100329fccc70c723865b0b0a6117047feb1dfd1d34b", kill_on_drop: false }`
[INFO] [stdout] 1700e660f1aaaa94825dd100329fccc70c723865b0b0a6117047feb1dfd1d34b