[INFO] fetching crate rustofi 0.2.2...
[INFO] checking rustofi-0.2.2 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate rustofi 0.2.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rustofi 0.2.2 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustofi 0.2.2
[INFO] finished tweaking crates.io crate rustofi 0.2.2
[INFO] tweaked toml for crates.io crate rustofi 0.2.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate rustofi 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pickledb v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bc7ae04231f5206db5f07e9c9d4b8732a55cb623ffbeec0d456f35eec485aaa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7bc7ae04231f5206db5f07e9c9d4b8732a55cb623ffbeec0d456f35eec485aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bc7ae04231f5206db5f07e9c9d4b8732a55cb623ffbeec0d456f35eec485aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc7ae04231f5206db5f07e9c9d4b8732a55cb623ffbeec0d456f35eec485aaa", kill_on_drop: false }`
[INFO] [stdout] 7bc7ae04231f5206db5f07e9c9d4b8732a55cb623ffbeec0d456f35eec485aaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5f456d9e29bcf602787a3cfc64a70e74f2f942b1e45a14957d1e8dae40c2f00a
[INFO] running `Command { std: "docker" "start" "-a" "5f456d9e29bcf602787a3cfc64a70e74f2f942b1e45a14957d1e8dae40c2f00a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking half v1.4.0
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking subprocess v0.1.18
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking rustofi v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking pickledb v0.4.0
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/simple_action.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mut p = Person {
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> examples/simple_window.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Window::new("FizzBuzz in Rofi!").lines(8).show(fizzbuzz());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.23s
[INFO] running `Command { std: "docker" "inspect" "5f456d9e29bcf602787a3cfc64a70e74f2f942b1e45a14957d1e8dae40c2f00a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f456d9e29bcf602787a3cfc64a70e74f2f942b1e45a14957d1e8dae40c2f00a", kill_on_drop: false }`
[INFO] [stdout] 5f456d9e29bcf602787a3cfc64a70e74f2f942b1e45a14957d1e8dae40c2f00a