[INFO] fetching crate yaircc 0.1.0... [INFO] checking yaircc-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate yaircc 0.1.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate yaircc 0.1.0 [INFO] finished tweaking crates.io crate yaircc 0.1.0 [INFO] tweaked toml for crates.io crate yaircc 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate yaircc 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 yaircc 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1754eff0d1858c5ad5cf52db3e3d686f7364486bace65e17d91bd295669e156b [INFO] running `Command { std: "docker" "start" "-a" "1754eff0d1858c5ad5cf52db3e3d686f7364486bace65e17d91bd295669e156b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1754eff0d1858c5ad5cf52db3e3d686f7364486bace65e17d91bd295669e156b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1754eff0d1858c5ad5cf52db3e3d686f7364486bace65e17d91bd295669e156b", kill_on_drop: false }` [INFO] [stdout] 1754eff0d1858c5ad5cf52db3e3d686f7364486bace65e17d91bd295669e156b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 34604dc48f79d9dc4a888c7ad3c80023c1146535c7e1f75232c7b69635c6b5d9 [INFO] running `Command { std: "docker" "start" "-a" "34604dc48f79d9dc4a888c7ad3c80023c1146535c7e1f75232c7b69635c6b5d9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Checking futures-core v0.3.1 [INFO] [stderr] Compiling cc v1.0.47 [INFO] [stderr] Checking futures-io v0.3.1 [INFO] [stderr] Checking futures-sink v0.3.1 [INFO] [stderr] Checking futures-task v0.3.1 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Compiling failure_derive v0.1.6 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling yaircc v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking futures-channel v0.3.1 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking once_cell v1.2.0 [INFO] [stderr] Checking futures-timer v1.0.3 [INFO] [stderr] Checking async-macros v1.0.0 [INFO] [stderr] Checking pin-project-lite v0.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Checking kv-log-macro v1.0.4 [INFO] [stderr] Checking async-task v1.0.0 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking num_cpus v1.11.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking async-std v0.99.12 [INFO] [stderr] Checking backtrace v0.3.40 [INFO] [stderr] Compiling synstructure v0.12.2 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling futures-macro v0.3.1 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stderr] Checking futures-util v0.3.1 [INFO] [stderr] Checking futures-executor v0.3.1 [INFO] [stderr] Checking futures v0.3.1 [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> /opt/rustwide/target/debug/build/yaircc-d9345b56007ace53/out/code.rs:724:53 [INFO] [stdout] | [INFO] [stdout] 724 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 725 | | let code = match s { [INFO] [stdout] 726 | | "PASS" => Code::Pass, [INFO] [stdout] 727 | | "NICK" => Code::Nick, [INFO] [stdout] ... | [INFO] [stdout] 910 | | Ok(code) [INFO] [stdout] 911 | | } [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] --> /opt/rustwide/target/debug/build/yaircc-d9345b56007ace53/out/code.rs:910:9 [INFO] [stdout] | [INFO] [stdout] 910 | Ok(code) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/message.rs:111:33 [INFO] [stdout] | [INFO] [stdout] 111 | Some(text) => match text.parse() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> /opt/rustwide/target/debug/build/yaircc-d9345b56007ace53/out/code.rs:724:53 [INFO] [stdout] | [INFO] [stdout] 724 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 725 | | let code = match s { [INFO] [stdout] 726 | | "PASS" => Code::Pass, [INFO] [stdout] 727 | | "NICK" => Code::Nick, [INFO] [stdout] ... | [INFO] [stdout] 910 | | Ok(code) [INFO] [stdout] 911 | | } [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] --> /opt/rustwide/target/debug/build/yaircc-d9345b56007ace53/out/code.rs:910:9 [INFO] [stdout] | [INFO] [stdout] 910 | Ok(code) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/message.rs:111:33 [INFO] [stdout] | [INFO] [stdout] 111 | Some(text) => match text.parse() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `yaircc` (lib test) due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `yaircc` (lib) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "34604dc48f79d9dc4a888c7ad3c80023c1146535c7e1f75232c7b69635c6b5d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34604dc48f79d9dc4a888c7ad3c80023c1146535c7e1f75232c7b69635c6b5d9", kill_on_drop: false }` [INFO] [stdout] 34604dc48f79d9dc4a888c7ad3c80023c1146535c7e1f75232c7b69635c6b5d9