[INFO] fetching crate caesarcy 0.1.1...
[INFO] extracting crate caesarcy 0.1.1 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/caesarcy/0.1.1
[INFO] extracting crate caesarcy 0.1.1 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/caesarcy/0.1.1
[INFO] validating manifest of caesarcy-0.1.1 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of caesarcy-0.1.1 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing caesarcy-0.1.1
[INFO] finished frobbing caesarcy-0.1.1
[INFO] frobbed toml for caesarcy-0.1.1 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/caesarcy/0.1.1/Cargo.toml
[INFO] started frobbing caesarcy-0.1.1
[INFO] finished frobbing caesarcy-0.1.1
[INFO] frobbed toml for caesarcy-0.1.1 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/caesarcy/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] testing caesarcy-0.1.1 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/caesarcy/0.1.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 5743291823a64a600292ecdbc6569dab46c912071e2f93642ea78c989797ba28
[INFO] running `"docker" "start" "-a" "5743291823a64a600292ecdbc6569dab46c912071e2f93642ea78c989797ba28"`
[INFO] [stderr]    Compiling caesarcy v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `new_seq` is never read
[INFO] [stderr]   --> src/lib.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut new_seq = String::new();
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     #[warn(unused_assignments)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "5743291823a64a600292ecdbc6569dab46c912071e2f93642ea78c989797ba28"`
[INFO] running `"docker" "rm" "-f" "5743291823a64a600292ecdbc6569dab46c912071e2f93642ea78c989797ba28"`
[INFO] [stdout] 5743291823a64a600292ecdbc6569dab46c912071e2f93642ea78c989797ba28
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/caesarcy/0.1.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 014a85acde34339b3a9c6760498305d3d109b3610f7b7575aa9b40211a941f94
[INFO] running `"docker" "start" "-a" "014a85acde34339b3a9c6760498305d3d109b3610f7b7575aa9b40211a941f94"`
[INFO] [stderr]    Compiling caesarcy v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `new_seq` is never read
[INFO] [stderr]   --> src/lib.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let mut new_seq = String::new();
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/lib.rs:36:12
[INFO] [stderr]    |
[INFO] [stderr] 36 |     #[warn(unused_assignments)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "014a85acde34339b3a9c6760498305d3d109b3610f7b7575aa9b40211a941f94"`
[INFO] running `"docker" "rm" "-f" "014a85acde34339b3a9c6760498305d3d109b3610f7b7575aa9b40211a941f94"`
[INFO] [stdout] 014a85acde34339b3a9c6760498305d3d109b3610f7b7575aa9b40211a941f94
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-6/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/caesarcy/0.1.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 5a842678185756519d983ea3ef19a50f847563450f2a25914dd478163bf4534d
[INFO] running `"docker" "start" "-a" "5a842678185756519d983ea3ef19a50f847563450f2a25914dd478163bf4534d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/caesarcy-d929bced740d27e6
[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]    Doc-tests caesarcy
[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" "5a842678185756519d983ea3ef19a50f847563450f2a25914dd478163bf4534d"`
[INFO] running `"docker" "rm" "-f" "5a842678185756519d983ea3ef19a50f847563450f2a25914dd478163bf4534d"`
[INFO] [stdout] 5a842678185756519d983ea3ef19a50f847563450f2a25914dd478163bf4534d