[INFO] fetching crate hostcat 0.5.2...
[INFO] checking hostcat-0.5.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate hostcat 0.5.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate hostcat 0.5.2
[INFO] finished tweaking crates.io crate hostcat 0.5.2
[INFO] tweaked toml for crates.io crate hostcat 0.5.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hostcat 0.5.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hostcat 0.5.2 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6215c956d48ee2f86147cd398689f67c1387afe37372bff1130c79a6960e8355
[INFO] running `Command { std: "docker" "start" "-a" "6215c956d48ee2f86147cd398689f67c1387afe37372bff1130c79a6960e8355", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6215c956d48ee2f86147cd398689f67c1387afe37372bff1130c79a6960e8355", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6215c956d48ee2f86147cd398689f67c1387afe37372bff1130c79a6960e8355", kill_on_drop: false }`
[INFO] [stdout] 6215c956d48ee2f86147cd398689f67c1387afe37372bff1130c79a6960e8355
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d749c1d1b89f79d41d77d3866e1f97817486aaefddbadcdc08f71531787fcd69
[INFO] running `Command { std: "docker" "start" "-a" "d749c1d1b89f79d41d77d3866e1f97817486aaefddbadcdc08f71531787fcd69", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking miniz_oxide v0.4.1
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking console v0.9.2
[INFO] [stderr]     Checking better-panic v0.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking hostcat v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     #[clap(short = 'c', long = "config", default_value = "/etc/hostcat")]
[INFO] [stdout] 11 | |     pub config: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     #[clap(short = 'c', long = "config", default_value = "/etc/hostcat")]
[INFO] [stdout] 11 | |     pub config: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     #[clap(short = 'f', long = "file", default_value = "/etc/hosts", about = "Path to host file")]
[INFO] [stdout] 32 | |     pub file: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     #[clap(short = 'p', long = "profile", default_value = "default", about = "Profile to switch to")]
[INFO] [stdout] 34 | |     pub profile: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     #[clap(short = 'p', long = "profile", default_value = "default", about = "Profile to switch to")]
[INFO] [stdout] 40 | |     pub profile: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     #[clap(short = 'f', long = "file", default_value = "/etc/hosts", about = "Path to host file")]
[INFO] [stdout] 32 | |     pub file: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     #[clap(short = 'v', long = "value", about = "pass space in \" to delete profile, space separated values in \" for multiple values ")]
[INFO] [stdout] 42 | |     pub value: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     #[clap(short = 'p', long = "profile", default_value = "default", about = "Profile to switch to")]
[INFO] [stdout] 34 | |     pub profile: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | /     #[clap(short = 'p', long = "profile", default_value = "default", about = "Profile to switch to")]
[INFO] [stdout] 40 | |     pub profile: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/args_mapper.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     #[clap(short = 'v', long = "value", about = "pass space in \" to delete profile, space separated values in \" for multiple values ")]
[INFO] [stdout] 42 | |     pub value: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hostcat` (bin "hostcat") due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hostcat` (bin "hostcat" test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "d749c1d1b89f79d41d77d3866e1f97817486aaefddbadcdc08f71531787fcd69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d749c1d1b89f79d41d77d3866e1f97817486aaefddbadcdc08f71531787fcd69", kill_on_drop: false }`
[INFO] [stdout] d749c1d1b89f79d41d77d3866e1f97817486aaefddbadcdc08f71531787fcd69