[INFO] fetching crate qvnt 0.5.0-alpha... [INFO] checking qvnt-0.5.0-alpha against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate qvnt 0.5.0-alpha into /workspace/builds/worker-7-tc2/source [INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml [INFO] started tweaking crates.io crate qvnt 0.5.0-alpha [INFO] finished tweaking crates.io crate qvnt 0.5.0-alpha [INFO] tweaked toml for crates.io crate qvnt 0.5.0-alpha written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate qvnt 0.5.0-alpha 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 85 packages to latest compatible versions [INFO] [stderr] Adding criterion v0.4.0 (available: v0.7.0) [INFO] [stderr] Adding float-cmp v0.9.0 (available: v0.10.0) [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.2) [INFO] [stderr] Adding rand_distr v0.4.3 (available: v0.5.1) [INFO] [stderr] Adding test-case v2.2.2 (available: v3.3.1) [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] 3f86f0cde0b369fcefb70da091b216ee71f2e635e8bc8146ae7c9e92e0b2da84 [INFO] running `Command { std: "docker" "start" "-a" "3f86f0cde0b369fcefb70da091b216ee71f2e635e8bc8146ae7c9e92e0b2da84", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3f86f0cde0b369fcefb70da091b216ee71f2e635e8bc8146ae7c9e92e0b2da84", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f86f0cde0b369fcefb70da091b216ee71f2e635e8bc8146ae7c9e92e0b2da84", kill_on_drop: false }` [INFO] [stdout] 3f86f0cde0b369fcefb70da091b216ee71f2e635e8bc8146ae7c9e92e0b2da84 [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] ef7c17ad3cafda38f48fbeadd6d9eee700e4dd2878d677afae1103fd9fed6775 [INFO] running `Command { std: "docker" "start" "-a" "ef7c17ad3cafda38f48fbeadd6d9eee700e4dd2878d677afae1103fd9fed6775", kill_on_drop: false }` [INFO] [stderr] Checking os_str_bytes v6.6.1 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Checking regex-automata v0.4.13 [INFO] [stderr] Checking textwrap v0.16.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling zerocopy-derive v0.8.27 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling enum_dispatch v0.3.13 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Compiling test-case-macros v2.2.2 [INFO] [stderr] Checking clap v3.2.25 [INFO] [stderr] Checking test-case v2.2.2 [INFO] [stderr] Checking num-complex v0.4.6 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Checking zerocopy v0.8.27 [INFO] [stderr] Checking regex v1.12.2 [INFO] [stderr] Checking serde v1.0.228 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking ppv-lite86 v0.2.21 [INFO] [stderr] Checking half v2.7.1 [INFO] [stderr] Checking ciborium-ll v0.2.2 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking ciborium v0.2.2 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking criterion v0.4.0 [INFO] [stderr] Checking rand_distr v0.4.3 [INFO] [stderr] Checking qvnt v0.5.0-alpha (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/backend/mod.rs:19:53 [INFO] [stdout] | [INFO] [stdout] 19 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 20 | | Ok(s.to_string().into()) [INFO] [stdout] 21 | | } [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 [INFO] [stdout] --> src/backend/mod.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | Ok(s.to_string().into()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `qvnt` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "ef7c17ad3cafda38f48fbeadd6d9eee700e4dd2878d677afae1103fd9fed6775", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef7c17ad3cafda38f48fbeadd6d9eee700e4dd2878d677afae1103fd9fed6775", kill_on_drop: false }` [INFO] [stdout] ef7c17ad3cafda38f48fbeadd6d9eee700e4dd2878d677afae1103fd9fed6775