[INFO] fetching crate scoped-thread-pool 1.0.4... [INFO] testing scoped-thread-pool-1.0.4 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1 [INFO] extracting crate scoped-thread-pool 1.0.4 into /workspace/builds/worker-5-tc1/source [INFO] started tweaking crates.io crate scoped-thread-pool 1.0.4 [INFO] finished tweaking crates.io crate scoped-thread-pool 1.0.4 [INFO] tweaked toml for crates.io crate scoped-thread-pool 1.0.4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate scoped-thread-pool 1.0.4 on toolchain caccb4d0368bd918ef6668af8e13834d07040417 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate scoped-thread-pool 1.0.4 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded variance v0.1.3 [INFO] [stderr] Downloaded crossbeam v0.8.2 [INFO] [stderr] Downloaded crossbeam-queue v0.3.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 16387d8558c123001a52caec456678aa8a2a1a769d82ef439bdf3bbee7d2f859 [INFO] running `Command { std: "docker" "start" "-a" "16387d8558c123001a52caec456678aa8a2a1a769d82ef439bdf3bbee7d2f859", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "16387d8558c123001a52caec456678aa8a2a1a769d82ef439bdf3bbee7d2f859", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16387d8558c123001a52caec456678aa8a2a1a769d82ef439bdf3bbee7d2f859", kill_on_drop: false }` [INFO] [stdout] 16387d8558c123001a52caec456678aa8a2a1a769d82ef439bdf3bbee7d2f859 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 04c47ec9af3f4665d3708252d96a245712c588f5e011e5d09ed85b597ba30122 [INFO] running `Command { std: "docker" "start" "-a" "04c47ec9af3f4665d3708252d96a245712c588f5e011e5d09ed85b597ba30122", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.15 [INFO] [stderr] Compiling memoffset v0.8.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.14 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling crossbeam-queue v0.3.8 [INFO] [stderr] Compiling variance v0.1.3 [INFO] [stderr] Compiling crossbeam-channel v0.5.8 [INFO] [stderr] Compiling crossbeam-deque v0.8.3 [INFO] [stderr] Compiling crossbeam v0.8.2 [INFO] [stderr] Compiling scoped-thread-pool v1.0.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:510:17 [INFO] [stdout] | [INFO] [stdout] 510 | struct Sentinel(Pool, Option>); [INFO] [stdout] | -------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 510 - struct Sentinel(Pool, Option>); [INFO] [stdout] 510 + struct Sentinel((), Option>); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.45s [INFO] running `Command { std: "docker" "inspect" "04c47ec9af3f4665d3708252d96a245712c588f5e011e5d09ed85b597ba30122", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04c47ec9af3f4665d3708252d96a245712c588f5e011e5d09ed85b597ba30122", kill_on_drop: false }` [INFO] [stdout] 04c47ec9af3f4665d3708252d96a245712c588f5e011e5d09ed85b597ba30122 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e9c2348961eb35b3ae8b0602068ff36778acc78d593bb330d5fa8233df69a425 [INFO] running `Command { std: "docker" "start" "-a" "e9c2348961eb35b3ae8b0602068ff36778acc78d593bb330d5fa8233df69a425", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.144 [INFO] [stderr] Compiling either v1.8.1 [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:510:17 [INFO] [stdout] | [INFO] [stdout] 510 | struct Sentinel(Pool, Option>); [INFO] [stdout] | -------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 510 - struct Sentinel(Pool, Option>); [INFO] [stdout] 510 + struct Sentinel((), Option>); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling getrandom v0.2.9 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling scoped-thread-pool v1.0.4 (/opt/rustwide/workdir) [INFO] [stdout] error: field `0` is never read [INFO] [stdout] --> src/lib.rs:510:17 [INFO] [stdout] | [INFO] [stdout] 510 | struct Sentinel(Pool, Option>); [INFO] [stdout] | -------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:1:24 [INFO] [stdout] | [INFO] [stdout] 1 | #![cfg_attr(test, deny(warnings))] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]` [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 510 - struct Sentinel(Pool, Option>); [INFO] [stdout] 510 + struct Sentinel((), Option>); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `scoped-thread-pool` (lib test) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "e9c2348961eb35b3ae8b0602068ff36778acc78d593bb330d5fa8233df69a425", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9c2348961eb35b3ae8b0602068ff36778acc78d593bb330d5fa8233df69a425", kill_on_drop: false }` [INFO] [stdout] e9c2348961eb35b3ae8b0602068ff36778acc78d593bb330d5fa8233df69a425