[INFO] fetching crate heliocron 1.0.0...
[INFO] checking heliocron-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate heliocron 1.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate heliocron 1.0.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate heliocron 1.0.0
[INFO] tweaked toml for crates.io crate heliocron 1.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate heliocron 1.0.0 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 heliocron 1.0.0 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] [stderr]     Blocking waiting for file lock on package cache
[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] cd8e2e2ab6089acc17e7ea63ca878725247578ff77411e467cee66bb972d0294
[INFO] running `Command { std: "docker" "start" "-a" "cd8e2e2ab6089acc17e7ea63ca878725247578ff77411e467cee66bb972d0294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd8e2e2ab6089acc17e7ea63ca878725247578ff77411e467cee66bb972d0294", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd8e2e2ab6089acc17e7ea63ca878725247578ff77411e467cee66bb972d0294", kill_on_drop: false }`
[INFO] [stdout] cd8e2e2ab6089acc17e7ea63ca878725247578ff77411e467cee66bb972d0294
[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] c02d0309bf0dc46915e4c2f38afa7d14de33563a6d3a2ecefc585644df546ce5
[INFO] running `Command { std: "docker" "start" "-a" "c02d0309bf0dc46915e4c2f38afa7d14de33563a6d3a2ecefc585644df546ce5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.140
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling serde v1.0.140
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling tokio v1.20.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking parking_lot_core v0.9.3
[INFO] [stderr]     Checking os_str_bytes v6.2.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking predicates-core v1.0.3
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking errno v0.3.12
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking pretty_assertions v1.2.1
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]     Checking predicates-tree v1.0.5
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking crossterm v0.24.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling clap_derive v3.2.15
[INFO] [stderr]     Checking clap v3.2.16
[INFO] [stderr]     Checking serde_json v1.0.82
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking heliocron v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         tag: 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] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         tag: 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 `heliocron` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `heliocron` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c02d0309bf0dc46915e4c2f38afa7d14de33563a6d3a2ecefc585644df546ce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c02d0309bf0dc46915e4c2f38afa7d14de33563a6d3a2ecefc585644df546ce5", kill_on_drop: false }`
[INFO] [stdout] c02d0309bf0dc46915e4c2f38afa7d14de33563a6d3a2ecefc585644df546ce5
