[INFO] cloning repository https://github.com/grzala/rcrypt-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grzala/rcrypt-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrzala%2Frcrypt-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrzala%2Frcrypt-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8ad9a1c4504e309fa0f88951a146023f6125d22
[INFO] checking grzala/rcrypt-rust against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrzala%2Frcrypt-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grzala/rcrypt-rust on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grzala/rcrypt-rust
[INFO] finished tweaking git repo https://github.com/grzala/rcrypt-rust
[INFO] tweaked toml for git repo https://github.com/grzala/rcrypt-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/grzala/rcrypt-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c3caa53a477f4ee89333b307ff0a9119bd76af93ec9d34005e4940b442bae56
[INFO] running `Command { std: "docker" "start" "-a" "6c3caa53a477f4ee89333b307ff0a9119bd76af93ec9d34005e4940b442bae56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c3caa53a477f4ee89333b307ff0a9119bd76af93ec9d34005e4940b442bae56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c3caa53a477f4ee89333b307ff0a9119bd76af93ec9d34005e4940b442bae56", kill_on_drop: false }`
[INFO] [stdout] 6c3caa53a477f4ee89333b307ff0a9119bd76af93ec9d34005e4940b442bae56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b951ac792af9d3d14ac90caecc6831163677e7979325417ae75c2500234f7eea
[INFO] running `Command { std: "docker" "start" "-a" "b951ac792af9d3d14ac90caecc6831163677e7979325417ae75c2500234f7eea", kill_on_drop: false }`
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]     Checking rcrypt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:118:29
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let path = Path::new(&n2);;
[INFO] [stdout]     |                                   ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:22:67
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Err(why) => panic!("couldn't open {}: {}", path.display(), why.description()),
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:28:67
[INFO] [stdout]    |
[INFO] [stdout] 28 |             Err(why) => panic!("couldn't read {}: {}", path.display(), why.description()),
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/main.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let name: String = cf.name.clone();
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:118:29
[INFO] [stdout]     |
[INFO] [stdout] 118 |         let path = Path::new(&n2);;
[INFO] [stdout]     |                                   ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:22:67
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Err(why) => panic!("couldn't open {}: {}", path.display(), why.description()),
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:28:67
[INFO] [stdout]    |
[INFO] [stdout] 28 |             Err(why) => panic!("couldn't read {}: {}", path.display(), why.description()),
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/main.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 |             let name: String = cf.name.clone();
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 |             let mut path = tmp_dir.path();
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 |             let mut path = tmp_dir.path();
[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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "b951ac792af9d3d14ac90caecc6831163677e7979325417ae75c2500234f7eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b951ac792af9d3d14ac90caecc6831163677e7979325417ae75c2500234f7eea", kill_on_drop: false }`
[INFO] [stdout] b951ac792af9d3d14ac90caecc6831163677e7979325417ae75c2500234f7eea