[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 master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEquilibris%2Frust-hello-huffman" "/workspace/builds/worker-67/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-67/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Equilibris/rust-hello-huffman on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-67/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd54cee40230febda29d3a0331e0f9e7691e3e04c57f62e488333675d350e842
[INFO] running `Command { std: "docker" "start" "-a" "cd54cee40230febda29d3a0331e0f9e7691e3e04c57f62e488333675d350e842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd54cee40230febda29d3a0331e0f9e7691e3e04c57f62e488333675d350e842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd54cee40230febda29d3a0331e0f9e7691e3e04c57f62e488333675d350e842", kill_on_drop: false }`
[INFO] [stdout] cd54cee40230febda29d3a0331e0f9e7691e3e04c57f62e488333675d350e842
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d07a2f916ba749c3e871861f25872821e49f651933fe9f24fe0dfe80324ac47
[INFO] running `Command { std: "docker" "start" "-a" "1d07a2f916ba749c3e871861f25872821e49f651933fe9f24fe0dfe80324ac47", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling indexmap v1.7.0
[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 15.54s
[INFO] running `Command { std: "docker" "inspect" "1d07a2f916ba749c3e871861f25872821e49f651933fe9f24fe0dfe80324ac47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d07a2f916ba749c3e871861f25872821e49f651933fe9f24fe0dfe80324ac47", kill_on_drop: false }`
[INFO] [stdout] 1d07a2f916ba749c3e871861f25872821e49f651933fe9f24fe0dfe80324ac47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8881d24c21dccc0422850623e3d488cb8e5c83743660edefc09c64e7f57cca1f
[INFO] running `Command { std: "docker" "start" "-a" "8881d24c21dccc0422850623e3d488cb8e5c83743660edefc09c64e7f57cca1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.6.1
[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 2.23s
[INFO] running `Command { std: "docker" "inspect" "8881d24c21dccc0422850623e3d488cb8e5c83743660edefc09c64e7f57cca1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8881d24c21dccc0422850623e3d488cb8e5c83743660edefc09c64e7f57cca1f", kill_on_drop: false }`
[INFO] [stdout] 8881d24c21dccc0422850623e3d488cb8e5c83743660edefc09c64e7f57cca1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 109d75b25eba9b245dfd39e51d06fa884c75847f03b0be5abfbcd18b47c20d8e
[INFO] running `Command { std: "docker" "start" "-a" "109d75b25eba9b245dfd39e51d06fa884c75847f03b0be5abfbcd18b47c20d8e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[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 header::tests::experiments ... ok
[INFO] [stdout] test huff_encoder::tests::experiments ... ok
[INFO] [stdout] test huff_encoder::tests::it_extracts_frequencies ... ok
[INFO] [stdout] test huff_encoder::tests::it_encodes_tree ... 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 huff_decoder::tests::it_decodes_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 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "109d75b25eba9b245dfd39e51d06fa884c75847f03b0be5abfbcd18b47c20d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109d75b25eba9b245dfd39e51d06fa884c75847f03b0be5abfbcd18b47c20d8e", kill_on_drop: false }`
[INFO] [stdout] 109d75b25eba9b245dfd39e51d06fa884c75847f03b0be5abfbcd18b47c20d8e