[INFO] fetching crate pkgsrc 0.4.2...
[INFO] checking pkgsrc-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pkgsrc 0.4.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate pkgsrc 0.4.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate pkgsrc 0.4.2
[INFO] tweaked toml for crates.io crate pkgsrc 0.4.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pkgsrc 0.4.2 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 pkgsrc 0.4.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b4f96326ef1d37174691d2fdaeb84beab8680ef41ab72834bc71ce6da3a07955
[INFO] running `Command { std: "docker" "start" "-a" "b4f96326ef1d37174691d2fdaeb84beab8680ef41ab72834bc71ce6da3a07955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4f96326ef1d37174691d2fdaeb84beab8680ef41ab72834bc71ce6da3a07955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4f96326ef1d37174691d2fdaeb84beab8680ef41ab72834bc71ce6da3a07955", kill_on_drop: false }`
[INFO] [stdout] b4f96326ef1d37174691d2fdaeb84beab8680ef41ab72834bc71ce6da3a07955
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4db63ad6b43d1fbc3142446844e5ccae04bb4a53aef74f7ee092a533f6fde9ce
[INFO] running `Command { std: "docker" "start" "-a" "4db63ad6b43d1fbc3142446844e5ccae04bb4a53aef74f7ee092a533f6fde9ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking filetime v0.2.26
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking ar v0.9.0
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking xattr v1.5.1
[INFO] [stderr]     Checking tar v0.4.44
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking thiserror v2.0.16
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling serde_with_macros v3.14.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_with v3.14.0
[INFO] [stderr]     Checking pkgsrc v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> examples/pkg_info.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     #[structopt(short = "K", long = "pkg-dbdir", help = "Set PKG_DBDIR")]
[INFO] [stdout] 32 | |     pkg_dbdir: Option<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] error: could not compile `pkgsrc` (example "pkg_info") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4db63ad6b43d1fbc3142446844e5ccae04bb4a53aef74f7ee092a533f6fde9ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4db63ad6b43d1fbc3142446844e5ccae04bb4a53aef74f7ee092a533f6fde9ce", kill_on_drop: false }`
[INFO] [stdout] 4db63ad6b43d1fbc3142446844e5ccae04bb4a53aef74f7ee092a533f6fde9ce