[INFO] fetching crate caesarcy 0.1.1...
[INFO] testing caesarcy-0.1.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate caesarcy 0.1.1 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate caesarcy 0.1.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate caesarcy 0.1.1
[INFO] finished tweaking crates.io crate caesarcy 0.1.1
[INFO] tweaked toml for crates.io crate caesarcy 0.1.1 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75779c460a1ffb9bb9470a6dbe31db063cee2f5c24540c036f878460a0c84537
[INFO] running `Command { std: "docker" "start" "-a" "75779c460a1ffb9bb9470a6dbe31db063cee2f5c24540c036f878460a0c84537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75779c460a1ffb9bb9470a6dbe31db063cee2f5c24540c036f878460a0c84537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75779c460a1ffb9bb9470a6dbe31db063cee2f5c24540c036f878460a0c84537", kill_on_drop: false }`
[INFO] [stdout] 75779c460a1ffb9bb9470a6dbe31db063cee2f5c24540c036f878460a0c84537
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54f8b3ce13df33295b7f72c41800e3f71e1411e3feb408711bd3950937cd2822
[INFO] running `Command { std: "docker" "start" "-a" "54f8b3ce13df33295b7f72c41800e3f71e1411e3feb408711bd3950937cd2822", kill_on_drop: false }`
[INFO] [stderr]    Compiling caesarcy v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `new_seq` is never read
[INFO] [stdout]   --> src/lib.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut new_seq = String::new();
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     #[warn(unused_assignments)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "54f8b3ce13df33295b7f72c41800e3f71e1411e3feb408711bd3950937cd2822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54f8b3ce13df33295b7f72c41800e3f71e1411e3feb408711bd3950937cd2822", kill_on_drop: false }`
[INFO] [stdout] 54f8b3ce13df33295b7f72c41800e3f71e1411e3feb408711bd3950937cd2822
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43165b26c9e642784d5f3474cd1339fea8743fa2a9ae9038c46c37af8ff4ccdb
[INFO] running `Command { std: "docker" "start" "-a" "43165b26c9e642784d5f3474cd1339fea8743fa2a9ae9038c46c37af8ff4ccdb", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `new_seq` is never read
[INFO] [stdout]   --> src/lib.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut new_seq = String::new();
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     #[warn(unused_assignments)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling caesarcy v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_seq` is never read
[INFO] [stdout]   --> src/lib.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let mut new_seq = String::new();
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     #[warn(unused_assignments)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "43165b26c9e642784d5f3474cd1339fea8743fa2a9ae9038c46c37af8ff4ccdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43165b26c9e642784d5f3474cd1339fea8743fa2a9ae9038c46c37af8ff4ccdb", kill_on_drop: false }`
[INFO] [stdout] 43165b26c9e642784d5f3474cd1339fea8743fa2a9ae9038c46c37af8ff4ccdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5f320fb121e6d406588660337e9f3956f09d0cd236877ed0af3d1acb21d3bb24
[INFO] running `Command { std: "docker" "start" "-a" "5f320fb121e6d406588660337e9f3956f09d0cd236877ed0af3d1acb21d3bb24", kill_on_drop: false }`
[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: the lint level is 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] warning: 1 warning emitted
[INFO] [stderr] 
[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: the lint level is 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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/caesarcy-9e22f84ee3623702)
[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; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5f320fb121e6d406588660337e9f3956f09d0cd236877ed0af3d1acb21d3bb24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f320fb121e6d406588660337e9f3956f09d0cd236877ed0af3d1acb21d3bb24", kill_on_drop: false }`
[INFO] [stdout] 5f320fb121e6d406588660337e9f3956f09d0cd236877ed0af3d1acb21d3bb24
