[INFO] updating cached repository cronokirby/huffman-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cronokirby/huffman-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cronokirby/huffman-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/cronokirby/huffman-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/cronokirby/huffman-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cronokirby/huffman-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cronokirby/huffman-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cronokirby/huffman-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0e04bcc9bd24634e15b047e8aff312748b3eeb52
[INFO] sha for GitHub repo cronokirby/huffman-rs: 0e04bcc9bd24634e15b047e8aff312748b3eeb52
[INFO] validating manifest of cronokirby/huffman-rs on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cronokirby/huffman-rs on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cronokirby/huffman-rs
[INFO] finished frobbing cronokirby/huffman-rs
[INFO] frobbed toml for cronokirby/huffman-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/cronokirby/huffman-rs/Cargo.toml
[INFO] started frobbing cronokirby/huffman-rs
[INFO] finished frobbing cronokirby/huffman-rs
[INFO] frobbed toml for cronokirby/huffman-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/cronokirby/huffman-rs/Cargo.toml
[INFO] crate cronokirby/huffman-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing cronokirby/huffman-rs against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cronokirby/huffman-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] b380c9e2c1bce759c5c570b201e46e5dea90dc2620487dfaf13a061d899f142d
[INFO] running `"docker" "start" "-a" "b380c9e2c1bce759c5c570b201e46e5dea90dc2620487dfaf13a061d899f142d"`
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling structopt v0.2.14
[INFO] [stderr]    Compiling huffman v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.08s
[INFO] running `"docker" "inspect" "b380c9e2c1bce759c5c570b201e46e5dea90dc2620487dfaf13a061d899f142d"`
[INFO] running `"docker" "rm" "-f" "b380c9e2c1bce759c5c570b201e46e5dea90dc2620487dfaf13a061d899f142d"`
[INFO] [stdout] b380c9e2c1bce759c5c570b201e46e5dea90dc2620487dfaf13a061d899f142d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cronokirby/huffman-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1af77098af36272eccf15bf992e91be1fd84b7675048c211d9276e20b1a0afb2
[INFO] running `"docker" "start" "-a" "1af77098af36272eccf15bf992e91be1fd84b7675048c211d9276e20b1a0afb2"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling criterion-plot v0.3.0
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling tinytemplate v1.0.1
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling criterion v0.2.10
[INFO] [stderr]    Compiling huffman v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.48s
[INFO] running `"docker" "inspect" "1af77098af36272eccf15bf992e91be1fd84b7675048c211d9276e20b1a0afb2"`
[INFO] running `"docker" "rm" "-f" "1af77098af36272eccf15bf992e91be1fd84b7675048c211d9276e20b1a0afb2"`
[INFO] [stdout] 1af77098af36272eccf15bf992e91be1fd84b7675048c211d9276e20b1a0afb2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/cronokirby/huffman-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 6364134f98464660409c4577519fe1318bd6bc1a8aa3f7b56e48bccecaa8ccb7
[INFO] running `"docker" "start" "-a" "6364134f98464660409c4577519fe1318bd6bc1a8aa3f7b56e48bccecaa8ccb7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/huffman-f8e64cff9b8098e0
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test coding::test::huff_tree_freqs_works ... ok
[INFO] [stdout] test queue::test::inserting_preserves_order ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/huffman-52f1292221ed3b5f
[INFO] [stderr]    Doc-tests huffman
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6364134f98464660409c4577519fe1318bd6bc1a8aa3f7b56e48bccecaa8ccb7"`
[INFO] running `"docker" "rm" "-f" "6364134f98464660409c4577519fe1318bd6bc1a8aa3f7b56e48bccecaa8ccb7"`
[INFO] [stdout] 6364134f98464660409c4577519fe1318bd6bc1a8aa3f7b56e48bccecaa8ccb7