[INFO] fetching crate tempdir-shell 0.1.1...
[INFO] checking tempdir-shell-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate tempdir-shell 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tempdir-shell 0.1.1
[INFO] finished tweaking crates.io crate tempdir-shell 0.1.1
[INFO] tweaked toml for crates.io crate tempdir-shell 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tempdir-shell 0.1.1 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 tempdir-shell 0.1.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7e58ac641b06a0e3fe6f90e06502c5c8b0cf3d06b9a267860130413298e860b9
[INFO] running `Command { std: "docker" "start" "-a" "7e58ac641b06a0e3fe6f90e06502c5c8b0cf3d06b9a267860130413298e860b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e58ac641b06a0e3fe6f90e06502c5c8b0cf3d06b9a267860130413298e860b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e58ac641b06a0e3fe6f90e06502c5c8b0cf3d06b9a267860130413298e860b9", kill_on_drop: false }`
[INFO] [stdout] 7e58ac641b06a0e3fe6f90e06502c5c8b0cf3d06b9a267860130413298e860b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 21a7cdbc8b7c20c2b41f87f6ffae11988744ab2dabe45eba726224ea6baeb149
[INFO] running `Command { std: "docker" "start" "-a" "21a7cdbc8b7c20c2b41f87f6ffae11988744ab2dabe45eba726224ea6baeb149", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking tempdir-shell v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// The shell or executable to execute in the temporary directory
[INFO] [stdout] 13 | |     #[clap(long, short, default_value_t = var_os("SHELL").unwrap_or_else(|| OsString::from("/bin/sh")).to_str().unwrap().to_string())]
[INFO] [stdout] 14 | |     shell: 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<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// Arguments to the shell or executable
[INFO] [stdout] 17 | |     #[clap()]
[INFO] [stdout] 18 | |     args: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tempdir-shell` (bin "tempdir-shell") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// The shell or executable to execute in the temporary directory
[INFO] [stdout] 13 | |     #[clap(long, short, default_value_t = var_os("SHELL").unwrap_or_else(|| OsString::from("/bin/sh")).to_str().unwrap().to_string())]
[INFO] [stdout] 14 | |     shell: String,
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     /// Arguments to the shell or executable
[INFO] [stdout] 17 | |     #[clap()]
[INFO] [stdout] 18 | |     args: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tempdir-shell` (bin "tempdir-shell" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "21a7cdbc8b7c20c2b41f87f6ffae11988744ab2dabe45eba726224ea6baeb149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21a7cdbc8b7c20c2b41f87f6ffae11988744ab2dabe45eba726224ea6baeb149", kill_on_drop: false }`
[INFO] [stdout] 21a7cdbc8b7c20c2b41f87f6ffae11988744ab2dabe45eba726224ea6baeb149
