[INFO] fetching crate tasklib 0.3.2... [INFO] checking tasklib-0.3.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate tasklib 0.3.2 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate tasklib 0.3.2 [INFO] finished tweaking crates.io crate tasklib 0.3.2 [INFO] tweaked toml for crates.io crate tasklib 0.3.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate tasklib 0.3.2 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] 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 41 packages to latest compatible versions [INFO] [stderr] Adding nom v7.1.3 (available: v8.0.0) [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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1295f66860ddce99eb36ff584720a3d85f3127ce817882313162f824cb885079 [INFO] running `Command { std: "docker" "start" "-a" "1295f66860ddce99eb36ff584720a3d85f3127ce817882313162f824cb885079", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1295f66860ddce99eb36ff584720a3d85f3127ce817882313162f824cb885079", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1295f66860ddce99eb36ff584720a3d85f3127ce817882313162f824cb885079", kill_on_drop: false }` [INFO] [stdout] 1295f66860ddce99eb36ff584720a3d85f3127ce817882313162f824cb885079 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3f58caa2ed6bd801e433821c6a235084fabefeec47429c949c05c5fbf44edf31 [INFO] running `Command { std: "docker" "start" "-a" "3f58caa2ed6bd801e433821c6a235084fabefeec47429c949c05c5fbf44edf31", kill_on_drop: false }` [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Checking chrono v0.4.42 [INFO] [stderr] Checking uuid v1.18.1 [INFO] [stderr] Checking tasklib v0.3.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: enum `Type` is never used [INFO] [stdout] --> src/lib.rs:978:10 [INFO] [stdout] | [INFO] [stdout] 978 | enum Type { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `to_str`, `from_str`, and `from_string` are never used [INFO] [stdout] --> src/lib.rs:998:12 [INFO] [stdout] | [INFO] [stdout] 997 | impl Type { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 998 | fn to_str(&self) -> &str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 1006 | fn from_str(s: &str) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 1015 | fn from_string(s: String) -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:1212:27 [INFO] [stdout] | [INFO] [stdout] 1212 | let rc_file = args [INFO] [stdout] | ___________________________^ [INFO] [stdout] 1213 | | .next() [INFO] [stdout] 1214 | | .ok_or_else(|| "Missing rc argument".to_string())? [INFO] [stdout] 1215 | | .split(':') [INFO] [stdout] 1216 | | .nth(1) [INFO] [stdout] 1217 | | .ok_or_else(|| "Missing rc file".to_string())? [INFO] [stdout] 1218 | | .parse::() [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/lib.rs:1220:33 [INFO] [stdout] | [INFO] [stdout] 1220 | let data_location = args [INFO] [stdout] | _________________________________^ [INFO] [stdout] 1221 | | .next() [INFO] [stdout] 1222 | | .ok_or_else(|| "Missing data argument".to_string())? [INFO] [stdout] 1223 | | .split(':') [INFO] [stdout] 1224 | | .nth(1) [INFO] [stdout] 1225 | | .ok_or_else(|| "Missing data location".to_string())? [INFO] [stdout] 1226 | | .parse::() [INFO] [stdout] | |___________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tasklib` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: enum `Type` is never used [INFO] [stdout] --> src/lib.rs:978:10 [INFO] [stdout] | [INFO] [stdout] 978 | enum Type { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `to_str`, `from_str`, and `from_string` are never used [INFO] [stdout] --> src/lib.rs:998:12 [INFO] [stdout] | [INFO] [stdout] 997 | impl Type { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 998 | fn to_str(&self) -> &str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 1006 | fn from_str(s: &str) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 1015 | fn from_string(s: String) -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:1212:27 [INFO] [stdout] | [INFO] [stdout] 1212 | let rc_file = args [INFO] [stdout] | ___________________________^ [INFO] [stdout] 1213 | | .next() [INFO] [stdout] 1214 | | .ok_or_else(|| "Missing rc argument".to_string())? [INFO] [stdout] 1215 | | .split(':') [INFO] [stdout] 1216 | | .nth(1) [INFO] [stdout] 1217 | | .ok_or_else(|| "Missing rc file".to_string())? [INFO] [stdout] 1218 | | .parse::() [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/lib.rs:1220:33 [INFO] [stdout] | [INFO] [stdout] 1220 | let data_location = args [INFO] [stdout] | _________________________________^ [INFO] [stdout] 1221 | | .next() [INFO] [stdout] 1222 | | .ok_or_else(|| "Missing data argument".to_string())? [INFO] [stdout] 1223 | | .split(':') [INFO] [stdout] 1224 | | .nth(1) [INFO] [stdout] 1225 | | .ok_or_else(|| "Missing data location".to_string())? [INFO] [stdout] 1226 | | .parse::() [INFO] [stdout] | |___________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tasklib` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "3f58caa2ed6bd801e433821c6a235084fabefeec47429c949c05c5fbf44edf31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f58caa2ed6bd801e433821c6a235084fabefeec47429c949c05c5fbf44edf31", kill_on_drop: false }` [INFO] [stdout] 3f58caa2ed6bd801e433821c6a235084fabefeec47429c949c05c5fbf44edf31