[INFO] cloning repository basile-henry/huffman
[INFO] running `"git" "clone" "--bare" "git://github.com/basile-henry/huffman.git" "work/cache/sources/gh/basile-henry/huffman"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/basile-henry/huffman'...
[INFO] running `"git" "clone" "work/cache/sources/gh/basile-henry/huffman" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/basile-henry/huffman"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/basile-henry/huffman'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/basile-henry/huffman" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/basile-henry/huffman"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/basile-henry/huffman'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d27e547e8aa99f8012e0483996e8f28c88f2379
[INFO] sha for GitHub repo basile-henry/huffman: 1d27e547e8aa99f8012e0483996e8f28c88f2379
[INFO] validating manifest of basile-henry/huffman on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of basile-henry/huffman on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing basile-henry/huffman
[INFO] finished frobbing basile-henry/huffman
[INFO] frobbed toml for basile-henry/huffman written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/basile-henry/huffman/Cargo.toml
[INFO] started frobbing basile-henry/huffman
[INFO] finished frobbing basile-henry/huffman
[INFO] frobbed toml for basile-henry/huffman written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/basile-henry/huffman/Cargo.toml
[INFO] crate basile-henry/huffman already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking basile-henry/huffman against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-2/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/basile-henry/huffman:/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=forbid" "-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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2339ed4caaedf1f92769d79200077cc865d8443b93319a5ee5191b3d470e9b32
[INFO] running `"docker" "start" "-a" "2339ed4caaedf1f92769d79200077cc865d8443b93319a5ee5191b3d470e9b32"`
[INFO] [stderr]     Checking huffman v0.1.0 (/opt/crater/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: 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] 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 1.27s
[INFO] running `"docker" "inspect" "2339ed4caaedf1f92769d79200077cc865d8443b93319a5ee5191b3d470e9b32"`
[INFO] running `"docker" "rm" "-f" "2339ed4caaedf1f92769d79200077cc865d8443b93319a5ee5191b3d470e9b32"`
[INFO] [stdout] 2339ed4caaedf1f92769d79200077cc865d8443b93319a5ee5191b3d470e9b32