[INFO] cloning repository https://github.com/Equilibris/rust-hello-huffman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Equilibris/rust-hello-huffman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEquilibris%2Frust-hello-huffman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEquilibris%2Frust-hello-huffman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b029f7d5b298facbec365b1167b89427e601550e
[INFO] testing Equilibris/rust-hello-huffman against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEquilibris%2Frust-hello-huffman" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Equilibris/rust-hello-huffman on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Equilibris/rust-hello-huffman
[INFO] finished tweaking git repo https://github.com/Equilibris/rust-hello-huffman
[INFO] tweaked toml for git repo https://github.com/Equilibris/rust-hello-huffman written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/Equilibris/rust-hello-huffman already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded priority-queue v1.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5cca3a3b68bd274dd3bf2c0fa8db1d9d3a1e2494def12bc2790123264a73097
[INFO] running `Command { std: "docker" "start" "-a" "d5cca3a3b68bd274dd3bf2c0fa8db1d9d3a1e2494def12bc2790123264a73097", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5cca3a3b68bd274dd3bf2c0fa8db1d9d3a1e2494def12bc2790123264a73097", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5cca3a3b68bd274dd3bf2c0fa8db1d9d3a1e2494def12bc2790123264a73097", kill_on_drop: false }`
[INFO] [stdout] d5cca3a3b68bd274dd3bf2c0fa8db1d9d3a1e2494def12bc2790123264a73097
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcc1d6f28e3d93f49b5a80176a247cf660e602cf03436d704e7288451110b7ae
[INFO] running `Command { std: "docker" "start" "-a" "dcc1d6f28e3d93f49b5a80176a247cf660e602cf03436d704e7288451110b7ae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling priority-queue v1.1.1
[INFO] [stderr]    Compiling huffman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.16s
[INFO] running `Command { std: "docker" "inspect" "dcc1d6f28e3d93f49b5a80176a247cf660e602cf03436d704e7288451110b7ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcc1d6f28e3d93f49b5a80176a247cf660e602cf03436d704e7288451110b7ae", kill_on_drop: false }`
[INFO] [stdout] dcc1d6f28e3d93f49b5a80176a247cf660e602cf03436d704e7288451110b7ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b54d5743fe3f5cdf049e7fb594ae1ed17848fe4f3d1241c08ac5482a104dd00b
[INFO] running `Command { std: "docker" "start" "-a" "b54d5743fe3f5cdf049e7fb594ae1ed17848fe4f3d1241c08ac5482a104dd00b", kill_on_drop: false }`
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling huffman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "b54d5743fe3f5cdf049e7fb594ae1ed17848fe4f3d1241c08ac5482a104dd00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b54d5743fe3f5cdf049e7fb594ae1ed17848fe4f3d1241c08ac5482a104dd00b", kill_on_drop: false }`
[INFO] [stdout] b54d5743fe3f5cdf049e7fb594ae1ed17848fe4f3d1241c08ac5482a104dd00b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4b18baa6b6a0563f62bec4b87884d43c963d22a5b7431c412977a9fa4ccc6eaf
[INFO] running `Command { std: "docker" "start" "-a" "4b18baa6b6a0563f62bec4b87884d43c963d22a5b7431c412977a9fa4ccc6eaf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.72s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/huffman-bb62a07967c3434f)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test binary_tree::tests::it_compares_deeply ... ok
[INFO] [stdout] test binary_tree::tests::it_compares_truthy ... ok
[INFO] [stdout] test binary_tree::tests::it_compares_falsely ... ok
[INFO] [stdout] test huff_encoder::tests::experiments ... ok
[INFO] [stdout] test utils::math::tests::it_partitions ... ok
[INFO] [stdout] test huff_encoder::tests::it_has_unambiguous_inverse_char_map ... ok
[INFO] [stdout] test header::tests::experiments ... ok
[INFO] [stdout] test huff_encoder::tests::it_extracts_frequencies ... ok
[INFO] [stdout] test huff_decoder::tests::it_decodes_tree ... ok
[INFO] [stdout] test huff_encoder::tests::it_encodes_tree ... ok
[INFO] [stdout] test huff_decoder::tests::it_decodes_string ... ok
[INFO] [stdout] test huff_decoder::tests::it_decodes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4b18baa6b6a0563f62bec4b87884d43c963d22a5b7431c412977a9fa4ccc6eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b18baa6b6a0563f62bec4b87884d43c963d22a5b7431c412977a9fa4ccc6eaf", kill_on_drop: false }`
[INFO] [stdout] 4b18baa6b6a0563f62bec4b87884d43c963d22a5b7431c412977a9fa4ccc6eaf