[INFO] updating cached repository https://github.com/basile-henry/huffman
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d27e547e8aa99f8012e0483996e8f28c88f2379
[INFO] testing basile-henry/huffman against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasile-henry%2Fhuffman" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/basile-henry/huffman on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/basile-henry/huffman
[INFO] finished tweaking git repo https://github.com/basile-henry/huffman
[INFO] tweaked toml for git repo https://github.com/basile-henry/huffman written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/basile-henry/huffman already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] ed5d0b06d3cb11e2fdf850a085de1e289bdbbdfc0084266c81f7178dc1a9cfa6
[INFO] running `"docker" "start" "-a" "ed5d0b06d3cb11e2fdf850a085de1e289bdbbdfc0084266c81f7178dc1a9cfa6"`
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling huffman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/huffman.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |     bits: &mut Iterator<Item = bool>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = bool>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `decoded`
[INFO] [stderr]   --> src/main.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let decoded = huffman::decode(&key, &encoded);
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_decoded`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "ed5d0b06d3cb11e2fdf850a085de1e289bdbbdfc0084266c81f7178dc1a9cfa6"`
[INFO] running `"docker" "rm" "-f" "ed5d0b06d3cb11e2fdf850a085de1e289bdbbdfc0084266c81f7178dc1a9cfa6"`
[INFO] [stdout] ed5d0b06d3cb11e2fdf850a085de1e289bdbbdfc0084266c81f7178dc1a9cfa6
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a5259aa82c586ad881c2e6d749705706c0b4115265a8225f1cb3b4c0a1b6c5b2
[INFO] running `"docker" "start" "-a" "a5259aa82c586ad881c2e6d749705706c0b4115265a8225f1cb3b4c0a1b6c5b2"`
[INFO] [stderr]    Compiling huffman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/huffman.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |     bits: &mut Iterator<Item = bool>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = bool>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `decoded`
[INFO] [stderr]   --> src/main.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let decoded = huffman::decode(&key, &encoded);
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_decoded`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "a5259aa82c586ad881c2e6d749705706c0b4115265a8225f1cb3b4c0a1b6c5b2"`
[INFO] running `"docker" "rm" "-f" "a5259aa82c586ad881c2e6d749705706c0b4115265a8225f1cb3b4c0a1b6c5b2"`
[INFO] [stdout] a5259aa82c586ad881c2e6d749705706c0b4115265a8225f1cb3b4c0a1b6c5b2
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 825393673b8ae3dffa63117b8c69eddc4ffb2e611be4f385d7fcccaa34412e4a
[INFO] running `"docker" "start" "-a" "825393673b8ae3dffa63117b8c69eddc4ffb2e611be4f385d7fcccaa34412e4a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/huffman-31f180dbce8add11
[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" "825393673b8ae3dffa63117b8c69eddc4ffb2e611be4f385d7fcccaa34412e4a"`
[INFO] running `"docker" "rm" "-f" "825393673b8ae3dffa63117b8c69eddc4ffb2e611be4f385d7fcccaa34412e4a"`
[INFO] [stdout] 825393673b8ae3dffa63117b8c69eddc4ffb2e611be4f385d7fcccaa34412e4a