[INFO] fetching crate nix-nar-cli 0.3.0...
[INFO] checking nix-nar-cli-0.3.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate nix-nar-cli 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate nix-nar-cli 0.3.0
[INFO] finished tweaking crates.io crate nix-nar-cli 0.3.0
[INFO] tweaked toml for crates.io crate nix-nar-cli 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nix-nar-cli 0.3.0 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 nix-nar-cli 0.3.0 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] 942e40c89a0a0e64cfa7bce7ac6f43ca7f719623bcc7287c4827f4f0c23e1dad
[INFO] running `Command { std: "docker" "start" "-a" "942e40c89a0a0e64cfa7bce7ac6f43ca7f719623bcc7287c4827f4f0c23e1dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "942e40c89a0a0e64cfa7bce7ac6f43ca7f719623bcc7287c4827f4f0c23e1dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942e40c89a0a0e64cfa7bce7ac6f43ca7f719623bcc7287c4827f4f0c23e1dad", kill_on_drop: false }`
[INFO] [stdout] 942e40c89a0a0e64cfa7bce7ac6f43ca7f719623bcc7287c4827f4f0c23e1dad
[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] 094fa14b8b1f35ef4a72c8ca6979ba9cdf36077dbd4bc6929993c261bf595de0
[INFO] running `Command { std: "docker" "start" "-a" "094fa14b8b1f35ef4a72c8ca6979ba9cdf36077dbd4bc6929993c261bf595de0", kill_on_drop: false }`
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling serde v1.0.180
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]     Checking os_str_bytes v6.5.1
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking is_executable v1.0.1
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking indexmap v1.9.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking similar v2.2.1
[INFO] [stderr]     Checking pretty-hex v0.3.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking insta v1.31.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking thiserror v1.0.44
[INFO] [stderr]     Checking nix-nar v0.3.0
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking nix-nar-cli v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_cat.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub nar: Utf8PathBuf,
[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<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_cat.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub path: Utf8PathBuf,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_dump_path.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub path: Utf8PathBuf,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_ls.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub nar: Utf8PathBuf,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_ls.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub path: Utf8PathBuf,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nix-nar-cli` (bin "nix-nar") due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_cat.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub nar: Utf8PathBuf,
[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<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_cat.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub path: Utf8PathBuf,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_dump_path.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub path: Utf8PathBuf,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_ls.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub nar: Utf8PathBuf,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Utf8PathBuf, Infallible>
[INFO] [stdout]   --> src/cmd_ls.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub path: Utf8PathBuf,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nix-nar-cli` (bin "nix-nar" test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "094fa14b8b1f35ef4a72c8ca6979ba9cdf36077dbd4bc6929993c261bf595de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "094fa14b8b1f35ef4a72c8ca6979ba9cdf36077dbd4bc6929993c261bf595de0", kill_on_drop: false }`
[INFO] [stdout] 094fa14b8b1f35ef4a72c8ca6979ba9cdf36077dbd4bc6929993c261bf595de0
