[INFO] fetching crate core2 0.4.0...
[INFO] checking core2-0.4.0 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate core2 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate core2 0.4.0 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate core2 0.4.0
[INFO] finished tweaking crates.io crate core2 0.4.0
[INFO] tweaked toml for crates.io crate core2 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4238893d329490ef1cc7d538790db0010e32686795a59e976bb2d8d8c21e873
[INFO] running `Command { std: "docker" "start" "-a" "f4238893d329490ef1cc7d538790db0010e32686795a59e976bb2d8d8c21e873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4238893d329490ef1cc7d538790db0010e32686795a59e976bb2d8d8c21e873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4238893d329490ef1cc7d538790db0010e32686795a59e976bb2d8d8c21e873", kill_on_drop: false }`
[INFO] [stdout] f4238893d329490ef1cc7d538790db0010e32686795a59e976bb2d8d8c21e873
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f6e4fcd6ec8dd54a3e6add0370eb5d79b9395b22282f0f2c17c44feadf345b1
[INFO] running `Command { std: "docker" "start" "-a" "0f6e4fcd6ec8dd54a3e6add0370eb5d79b9395b22282f0f2c17c44feadf345b1", kill_on_drop: false }`
[INFO] [stderr]     Checking core2 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ExampleSliceReader` is never constructed
[INFO] [stdout]    --> tests/tests.rs:286:8
[INFO] [stdout]     |
[INFO] [stdout] 286 | struct ExampleSliceReader<'a> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "0f6e4fcd6ec8dd54a3e6add0370eb5d79b9395b22282f0f2c17c44feadf345b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f6e4fcd6ec8dd54a3e6add0370eb5d79b9395b22282f0f2c17c44feadf345b1", kill_on_drop: false }`
[INFO] [stdout] 0f6e4fcd6ec8dd54a3e6add0370eb5d79b9395b22282f0f2c17c44feadf345b1
[INFO] checking core2-0.4.0 against try#9ae1860851f3fbc1435a1698e572252c0076f413 for pr-122960-1
[INFO] extracting crate core2 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate core2 0.4.0 on toolchain 9ae1860851f3fbc1435a1698e572252c0076f413
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate core2 0.4.0
[INFO] finished tweaking crates.io crate core2 0.4.0
[INFO] tweaked toml for crates.io crate core2 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f2b70307b5925bd87ff8b0b9d4d61e4b7430a0c4a867f3c61cb5a7878f4066b
[INFO] running `Command { std: "docker" "start" "-a" "6f2b70307b5925bd87ff8b0b9d4d61e4b7430a0c4a867f3c61cb5a7878f4066b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f2b70307b5925bd87ff8b0b9d4d61e4b7430a0c4a867f3c61cb5a7878f4066b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f2b70307b5925bd87ff8b0b9d4d61e4b7430a0c4a867f3c61cb5a7878f4066b", kill_on_drop: false }`
[INFO] [stdout] 6f2b70307b5925bd87ff8b0b9d4d61e4b7430a0c4a867f3c61cb5a7878f4066b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9ae1860851f3fbc1435a1698e572252c0076f413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e81ee5e2cea552d9208667a9546a32bbd4e516e88de10ab44329ea64d356a28
[INFO] running `Command { std: "docker" "start" "-a" "5e81ee5e2cea552d9208667a9546a32bbd4e516e88de10ab44329ea64d356a28", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "5e81ee5e2cea552d9208667a9546a32bbd4e516e88de10ab44329ea64d356a28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e81ee5e2cea552d9208667a9546a32bbd4e516e88de10ab44329ea64d356a28", kill_on_drop: false }`
[INFO] [stdout] 5e81ee5e2cea552d9208667a9546a32bbd4e516e88de10ab44329ea64d356a28