[INFO] cloning repository https://github.com/jimbob88/huffman_coding
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jimbob88/huffman_coding" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimbob88%2Fhuffman_coding", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimbob88%2Fhuffman_coding'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3987e023ecd8a8e266ab840b4c1d33edded597ff
[INFO] testing jimbob88/huffman_coding against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimbob88%2Fhuffman_coding" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jimbob88/huffman_coding
[INFO] finished tweaking git repo https://github.com/jimbob88/huffman_coding
[INFO] tweaked toml for git repo https://github.com/jimbob88/huffman_coding written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jimbob88/huffman_coding on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jimbob88/huffman_coding already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9404f47d86419a6a0c9fc16237db30d2077a4f9a4c45b80abadc0b7af3185a24
[INFO] running `Command { std: "docker" "start" "-a" "9404f47d86419a6a0c9fc16237db30d2077a4f9a4c45b80abadc0b7af3185a24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9404f47d86419a6a0c9fc16237db30d2077a4f9a4c45b80abadc0b7af3185a24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9404f47d86419a6a0c9fc16237db30d2077a4f9a4c45b80abadc0b7af3185a24", kill_on_drop: false }`
[INFO] [stdout] 9404f47d86419a6a0c9fc16237db30d2077a4f9a4c45b80abadc0b7af3185a24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4103fe96256ee02062337be487a2aa16a9348484c3ed585cc2988f6d2cae4ac2
[INFO] running `Command { std: "docker" "start" "-a" "4103fe96256ee02062337be487a2aa16a9348484c3ed585cc2988f6d2cae4ac2", kill_on_drop: false }`
[INFO] [stderr]    Compiling huffman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "4103fe96256ee02062337be487a2aa16a9348484c3ed585cc2988f6d2cae4ac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4103fe96256ee02062337be487a2aa16a9348484c3ed585cc2988f6d2cae4ac2", kill_on_drop: false }`
[INFO] [stdout] 4103fe96256ee02062337be487a2aa16a9348484c3ed585cc2988f6d2cae4ac2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d400107eed99767850fb607ecc2561c0e419f3ddab904e8d431913dd4cb570e
[INFO] running `Command { std: "docker" "start" "-a" "1d400107eed99767850fb607ecc2561c0e419f3ddab904e8d431913dd4cb570e", kill_on_drop: false }`
[INFO] [stderr]    Compiling huffman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "1d400107eed99767850fb607ecc2561c0e419f3ddab904e8d431913dd4cb570e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d400107eed99767850fb607ecc2561c0e419f3ddab904e8d431913dd4cb570e", kill_on_drop: false }`
[INFO] [stdout] 1d400107eed99767850fb607ecc2561c0e419f3ddab904e8d431913dd4cb570e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 011c639689610449d878746068dcc649bf256c08e55458cc45adb079c19a66bd
[INFO] running `Command { std: "docker" "start" "-a" "011c639689610449d878746068dcc649bf256c08e55458cc45adb079c19a66bd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/huffman-d1613dff2f4bb2fb)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test huffman::count::tests::test_count_chars ... ok
[INFO] [stdout] test huffman::count::tests::test_ordered_count_chars_has_constant_order_with_unordered_string ... ok
[INFO] [stdout] test huffman::node::tests::test_node_comparison ... ok
[INFO] [stdout] test huffman::node::tests::test_order_in_binary_heap ... ok
[INFO] [stdout] test huffman::node::tests::test_order_in_binary_heap_after_box ... ok
[INFO] [stdout] test huffman::count::tests::test_ordered_count_chars_has_constant_order ... ok
[INFO] [stdout] test huffman::node::tests::test_order_in_binary_heap_with_different_order ... ok
[INFO] [stdout] test huffman::tests::test_huffman_table ... ok
[INFO] [stdout] test huffman::tests::test_huffman_tree ... ok
[INFO] [stdout] test huffman::tests::test_huffman_tree_is_constant ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "011c639689610449d878746068dcc649bf256c08e55458cc45adb079c19a66bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "011c639689610449d878746068dcc649bf256c08e55458cc45adb079c19a66bd", kill_on_drop: false }`
[INFO] [stdout] 011c639689610449d878746068dcc649bf256c08e55458cc45adb079c19a66bd