[INFO] fetching crate airone 0.8.1...
[INFO] checking airone-0.8.1 against master#3139ff09e9d07f7700f8d15ed25a231e29c43627 for pr-121848-3
[INFO] extracting crate airone 0.8.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate airone 0.8.1 on toolchain 3139ff09e9d07f7700f8d15ed25a231e29c43627
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate airone 0.8.1
[INFO] finished tweaking crates.io crate airone 0.8.1
[INFO] tweaked toml for crates.io crate airone 0.8.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate airone 0.8.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.84
[INFO] [stderr]   Downloaded airone_derive v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0a2ed1b6b574dfdc53e0cca1636476809b1d0884a1bd0185db34555904201e5
[INFO] running `Command { std: "docker" "start" "-a" "d0a2ed1b6b574dfdc53e0cca1636476809b1d0884a1bd0185db34555904201e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0a2ed1b6b574dfdc53e0cca1636476809b1d0884a1bd0185db34555904201e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a2ed1b6b574dfdc53e0cca1636476809b1d0884a1bd0185db34555904201e5", kill_on_drop: false }`
[INFO] [stdout] d0a2ed1b6b574dfdc53e0cca1636476809b1d0884a1bd0185db34555904201e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af5459443c363a3deb7d4ff9c164ad17f7fda71f256186e342c609201f0df6b7
[INFO] running `Command { std: "docker" "start" "-a" "af5459443c363a3deb7d4ff9c164ad17f7fda71f256186e342c609201f0df6b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling airone_derive v0.8.1
[INFO] [stderr]     Checking airone v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         db.drain(0..2).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         db.drain(1..2).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         db.drain(1..1).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         db.drain(0..=2).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:331:5
[INFO] [stdout]     |
[INFO] [stdout] 331 |     db.retain(|e| e.get_a().clone() != 1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 331 |     let _ = db.retain(|e| e.get_a().clone() != 1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:353:5
[INFO] [stdout]     |
[INFO] [stdout] 353 |     remove_file("rollback_test.csv");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 353 |     let _ = remove_file("rollback_test.csv");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:354:5
[INFO] [stdout]     |
[INFO] [stdout] 354 |     remove_file("rollback_test.changes.csv");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 354 |     let _ = remove_file("rollback_test.changes.csv");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:409:5
[INFO] [stdout]     |
[INFO] [stdout] 409 |     db.drain(3..=4);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "af5459443c363a3deb7d4ff9c164ad17f7fda71f256186e342c609201f0df6b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af5459443c363a3deb7d4ff9c164ad17f7fda71f256186e342c609201f0df6b7", kill_on_drop: false }`
[INFO] [stdout] af5459443c363a3deb7d4ff9c164ad17f7fda71f256186e342c609201f0df6b7
[INFO] checking airone-0.8.1 against try#a2cff3b7a9661c90ec0d581d3f3a69bb97c11138 for pr-121848-3
[INFO] extracting crate airone 0.8.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate airone 0.8.1 on toolchain a2cff3b7a9661c90ec0d581d3f3a69bb97c11138
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate airone 0.8.1
[INFO] finished tweaking crates.io crate airone 0.8.1
[INFO] tweaked toml for crates.io crate airone 0.8.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate airone 0.8.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cfdff695cb56e582d758cd2c47314a8e2d816889271e9574c3b6debf6caed85
[INFO] running `Command { std: "docker" "start" "-a" "8cfdff695cb56e582d758cd2c47314a8e2d816889271e9574c3b6debf6caed85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cfdff695cb56e582d758cd2c47314a8e2d816889271e9574c3b6debf6caed85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cfdff695cb56e582d758cd2c47314a8e2d816889271e9574c3b6debf6caed85", kill_on_drop: false }`
[INFO] [stdout] 8cfdff695cb56e582d758cd2c47314a8e2d816889271e9574c3b6debf6caed85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4716dbf89f98b5ac4c34770d4a9352891dbe0e574b6aa8861d50e8938921fb1
[INFO] running `Command { std: "docker" "start" "-a" "f4716dbf89f98b5ac4c34770d4a9352891dbe0e574b6aa8861d50e8938921fb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling airone_derive v0.8.1
[INFO] [stderr]     Checking airone v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |         db.drain(0..2).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         db.drain(1..2).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         db.drain(1..1).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |         db.drain(0..=2).unwrap();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:331:5
[INFO] [stdout]     |
[INFO] [stdout] 331 |     db.retain(|e| e.get_a().clone() != 1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 331 |     let _ = db.retain(|e| e.get_a().clone() != 1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:353:5
[INFO] [stdout]     |
[INFO] [stdout] 353 |     remove_file("rollback_test.csv");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 353 |     let _ = remove_file("rollback_test.csv");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:354:5
[INFO] [stdout]     |
[INFO] [stdout] 354 |     remove_file("rollback_test.changes.csv");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 354 |     let _ = remove_file("rollback_test.changes.csv");
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Iterator` that must be used
[INFO] [stdout]    --> src/tests/tests.rs:409:5
[INFO] [stdout]     |
[INFO] [stdout] 409 |     db.drain(3..=4);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "f4716dbf89f98b5ac4c34770d4a9352891dbe0e574b6aa8861d50e8938921fb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4716dbf89f98b5ac4c34770d4a9352891dbe0e574b6aa8861d50e8938921fb1", kill_on_drop: false }`
[INFO] [stdout] f4716dbf89f98b5ac4c34770d4a9352891dbe0e574b6aa8861d50e8938921fb1
