[INFO] fetching crate dont 0.1.0...
[INFO] checking dont-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate dont 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate dont 0.1.0
[INFO] finished tweaking crates.io crate dont 0.1.0
[INFO] tweaked toml for crates.io crate dont 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dont 0.1.0 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 dont 0.1.0 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-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] c2a52104d1a67b7d5df0e2180204e59c384e6ca3ce9f6ee7a88b150a1e299582
[INFO] running `Command { std: "docker" "start" "-a" "c2a52104d1a67b7d5df0e2180204e59c384e6ca3ce9f6ee7a88b150a1e299582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2a52104d1a67b7d5df0e2180204e59c384e6ca3ce9f6ee7a88b150a1e299582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2a52104d1a67b7d5df0e2180204e59c384e6ca3ce9f6ee7a88b150a1e299582", kill_on_drop: false }`
[INFO] [stdout] c2a52104d1a67b7d5df0e2180204e59c384e6ca3ce9f6ee7a88b150a1e299582
[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] 80d9e7113fc06b249fe830bb4f1fd68b9e8a194891616e663c82a4d4578ed614
[INFO] running `Command { std: "docker" "start" "-a" "80d9e7113fc06b249fe830bb4f1fd68b9e8a194891616e663c82a4d4578ed614", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking which v4.2.4
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking fragile v1.1.0
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]    Compiling clap_derive v3.1.4
[INFO] [stderr]    Compiling mockall_derive v0.11.0
[INFO] [stderr]     Checking clap v3.1.6
[INFO] [stderr]     Checking mockall v0.11.0
[INFO] [stderr]     Checking dont v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[clap(allow_hyphen_values = true)]
[INFO] [stdout] 14 | |     command: Vec<OsString>,
[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 `dont` (bin "dont" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[clap(allow_hyphen_values = true)]
[INFO] [stdout] 14 | |     command: Vec<OsString>,
[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 `dont` (bin "dont") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "80d9e7113fc06b249fe830bb4f1fd68b9e8a194891616e663c82a4d4578ed614", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80d9e7113fc06b249fe830bb4f1fd68b9e8a194891616e663c82a4d4578ed614", kill_on_drop: false }`
[INFO] [stdout] 80d9e7113fc06b249fe830bb4f1fd68b9e8a194891616e663c82a4d4578ed614