[INFO] fetching crate rpf 0.1.6...
[INFO] checking rpf-0.1.6 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate rpf 0.1.6 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate rpf 0.1.6 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rpf 0.1.6
[INFO] finished tweaking crates.io crate rpf 0.1.6
[INFO] tweaked toml for crates.io crate rpf 0.1.6 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ansi_term v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5449ce441a480d1af439602c1940441d41968a97c1204ab04d602e6e22e7ff2d
[INFO] running `Command { std: "docker" "start" "-a" "5449ce441a480d1af439602c1940441d41968a97c1204ab04d602e6e22e7ff2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5449ce441a480d1af439602c1940441d41968a97c1204ab04d602e6e22e7ff2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5449ce441a480d1af439602c1940441d41968a97c1204ab04d602e6e22e7ff2d", kill_on_drop: false }`
[INFO] [stdout] 5449ce441a480d1af439602c1940441d41968a97c1204ab04d602e6e22e7ff2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b686f748ab17444890fb9e665e0a01085f954f5eceaaf30af51e0e0c2407406f
[INFO] running `Command { std: "docker" "start" "-a" "b686f748ab17444890fb9e665e0a01085f954f5eceaaf30af51e0e0c2407406f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ansi_term v0.6.3
[INFO] [stderr]     Checking rpf v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ANSIString`
[INFO] [stdout]  --> src/utils/styled.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | use self::ansi_term::{Colour,ANSIString};
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Red`
[INFO] [stdout]  --> src/utils/styled.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | use self::ansi_term::Colour::{Red};
[INFO] [stdout]   |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ANSIString`
[INFO] [stdout]  --> src/utils/styled.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | use self::ansi_term::{Colour,ANSIString};
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Red`
[INFO] [stdout]  --> src/utils/styled.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | use self::ansi_term::Colour::{Red};
[INFO] [stdout]   |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/utils/prog.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         &self.exit(ExitStatus::ArgError);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let _ = &self.exit(ExitStatus::ArgError);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/utils/status.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         &self.exit(status);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let _ = &self.exit(status);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/utils/status.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         &self.exit(ExitStatus::Error);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let _ = &self.exit(ExitStatus::Error);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/utils/prog.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         &self.exit(ExitStatus::ArgError);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let _ = &self.exit(ExitStatus::ArgError);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/utils/status.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         &self.exit(status);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 44 |         let _ = &self.exit(status);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/utils/status.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         &self.exit(ExitStatus::Error);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let _ = &self.exit(ExitStatus::Error);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "b686f748ab17444890fb9e665e0a01085f954f5eceaaf30af51e0e0c2407406f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b686f748ab17444890fb9e665e0a01085f954f5eceaaf30af51e0e0c2407406f", kill_on_drop: false }`
[INFO] [stdout] b686f748ab17444890fb9e665e0a01085f954f5eceaaf30af51e0e0c2407406f