[INFO] crate binjs_io 0.2.1 is already in cache
[INFO] extracting crate binjs_io 0.2.1 into work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/reg/binjs_io/0.2.1
[INFO] extracting crate binjs_io 0.2.1 into work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/reg/binjs_io/0.2.1
[INFO] validating manifest of binjs_io-0.2.1 on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of binjs_io-0.2.1 on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing binjs_io-0.2.1
[INFO] finished frobbing binjs_io-0.2.1
[INFO] frobbed toml for binjs_io-0.2.1 written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/reg/binjs_io/0.2.1/Cargo.toml
[INFO] started frobbing binjs_io-0.2.1
[INFO] finished frobbing binjs_io-0.2.1
[INFO] frobbed toml for binjs_io-0.2.1 written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/reg/binjs_io/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking binjs_io-0.2.1 against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-4/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/reg/binjs_io/0.2.1:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] afd81ab3ba40c03e82075a17a29591f23047ff9d209c3c08ff4c148b2eea53bc
[INFO] running `"docker" "start" "-a" "afd81ab3ba40c03e82075a17a29591f23047ff9d209c3c08ff4c148b2eea53bc"`
[INFO] [stderr]     Checking range-encoding v0.1.9
[INFO] [stderr]     Checking binjs_shared v0.1.1
[INFO] [stderr]     Checking binjs_io v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `flate2` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:121:21
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 use flate2;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:11:1
[INFO] [stderr]     |
[INFO] [stderr] 11  | extern crate flate2;
[INFO] [stderr]     | -------------------- the item `flate2` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `flate2` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:134:21
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 use flate2;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:11:1
[INFO] [stderr]     |
[INFO] [stderr] 11  | extern crate flate2;
[INFO] [stderr]     | -------------------- the item `flate2` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `brotli` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 use brotli;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | extern crate brotli;
[INFO] [stderr]     | -------------------- the item `brotli` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `lzw` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:161:21
[INFO] [stderr]     |
[INFO] [stderr] 161 |                 use lzw;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:13:1
[INFO] [stderr]     |
[INFO] [stderr] 13  | extern crate lzw;
[INFO] [stderr]     | ----------------- the item `lzw` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `flate2` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:229:21
[INFO] [stderr]     |
[INFO] [stderr] 229 |                 use flate2;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:11:1
[INFO] [stderr]     |
[INFO] [stderr] 11  | extern crate flate2;
[INFO] [stderr]     | -------------------- the item `flate2` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `flate2` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:236:21
[INFO] [stderr]     |
[INFO] [stderr] 236 |                 use flate2;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:11:1
[INFO] [stderr]     |
[INFO] [stderr] 11  | extern crate flate2;
[INFO] [stderr]     | -------------------- the item `flate2` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `brotli` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:243:21
[INFO] [stderr]     |
[INFO] [stderr] 243 |                 use brotli;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | extern crate brotli;
[INFO] [stderr]     | -------------------- the item `brotli` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `lzw` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:250:21
[INFO] [stderr]     |
[INFO] [stderr] 250 |                 use lzw;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:13:1
[INFO] [stderr]     |
[INFO] [stderr] 13  | extern crate lzw;
[INFO] [stderr]     | ----------------- the item `lzw` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Statistics` is imported redundantly
[INFO] [stderr]    --> src/multipart/mod.rs:166:26
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub use self::write::{ Statistics, TreeTokenWriter, Targets };
[INFO] [stderr]     |                        ---------- the item `Statistics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 166 |         use multipart::{ Statistics, Targets };
[INFO] [stderr]     |                          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Targets` is imported redundantly
[INFO] [stderr]    --> src/multipart/mod.rs:166:38
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub use self::write::{ Statistics, TreeTokenWriter, Targets };
[INFO] [stderr]     |                                                     ------- the item `Targets` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 166 |         use multipart::{ Statistics, Targets };
[INFO] [stderr]     |                                      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `bincode` is imported redundantly
[INFO] [stderr]    --> src/entropy/mod.rs:141:13
[INFO] [stderr]     |
[INFO] [stderr] 141 |         use bincode;
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | extern crate bincode; // Used to store dictionaries. This is a temporary format.
[INFO] [stderr]     | --------------------- the item `bincode` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `flate2` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:121:21
[INFO] [stderr]     |
[INFO] [stderr] 121 |                 use flate2;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:11:1
[INFO] [stderr]     |
[INFO] [stderr] 11  | extern crate flate2;
[INFO] [stderr]     | -------------------- the item `flate2` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `flate2` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:134:21
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 use flate2;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:11:1
[INFO] [stderr]     |
[INFO] [stderr] 11  | extern crate flate2;
[INFO] [stderr]     | -------------------- the item `flate2` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `brotli` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:147:21
[INFO] [stderr]     |
[INFO] [stderr] 147 |                 use brotli;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | extern crate brotli;
[INFO] [stderr]     | -------------------- the item `brotli` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `lzw` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:161:21
[INFO] [stderr]     |
[INFO] [stderr] 161 |                 use lzw;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:13:1
[INFO] [stderr]     |
[INFO] [stderr] 13  | extern crate lzw;
[INFO] [stderr]     | ----------------- the item `lzw` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `flate2` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:229:21
[INFO] [stderr]     |
[INFO] [stderr] 229 |                 use flate2;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:11:1
[INFO] [stderr]     |
[INFO] [stderr] 11  | extern crate flate2;
[INFO] [stderr]     | -------------------- the item `flate2` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `flate2` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:236:21
[INFO] [stderr]     |
[INFO] [stderr] 236 |                 use flate2;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:11:1
[INFO] [stderr]     |
[INFO] [stderr] 11  | extern crate flate2;
[INFO] [stderr]     | -------------------- the item `flate2` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `brotli` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:243:21
[INFO] [stderr]     |
[INFO] [stderr] 243 |                 use brotli;
[INFO] [stderr]     |                     ^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:7:1
[INFO] [stderr]     |
[INFO] [stderr] 7   | extern crate brotli;
[INFO] [stderr]     | -------------------- the item `brotli` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `lzw` is imported redundantly
[INFO] [stderr]    --> src/bytes/compress.rs:250:21
[INFO] [stderr]     |
[INFO] [stderr] 250 |                 use lzw;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:13:1
[INFO] [stderr]     |
[INFO] [stderr] 13  | extern crate lzw;
[INFO] [stderr]     | ----------------- the item `lzw` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Statistics` is imported redundantly
[INFO] [stderr]    --> src/multipart/mod.rs:166:26
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub use self::write::{ Statistics, TreeTokenWriter, Targets };
[INFO] [stderr]     |                        ---------- the item `Statistics` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 166 |         use multipart::{ Statistics, Targets };
[INFO] [stderr]     |                          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Targets` is imported redundantly
[INFO] [stderr]    --> src/multipart/mod.rs:166:38
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub use self::write::{ Statistics, TreeTokenWriter, Targets };
[INFO] [stderr]     |                                                     ------- the item `Targets` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 166 |         use multipart::{ Statistics, Targets };
[INFO] [stderr]     |                                      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `bincode` is imported redundantly
[INFO] [stderr]    --> src/entropy/mod.rs:141:13
[INFO] [stderr]     |
[INFO] [stderr] 141 |         use bincode;
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:4:1
[INFO] [stderr]     |
[INFO] [stderr] 4   | extern crate bincode; // Used to store dictionaries. This is a temporary format.
[INFO] [stderr]     | --------------------- the item `bincode` is already imported here
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.06s
[INFO] running `"docker" "inspect" "afd81ab3ba40c03e82075a17a29591f23047ff9d209c3c08ff4c148b2eea53bc"`
[INFO] running `"docker" "rm" "-f" "afd81ab3ba40c03e82075a17a29591f23047ff9d209c3c08ff4c148b2eea53bc"`
[INFO] [stdout] afd81ab3ba40c03e82075a17a29591f23047ff9d209c3c08ff4c148b2eea53bc