[INFO] fetching crate slings 0.3.46...
[INFO] building slings-0.3.46 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate slings 0.3.46 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate slings 0.3.46
[INFO] finished tweaking crates.io crate slings 0.3.46
[INFO] tweaked toml for crates.io crate slings 0.3.46 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slings 0.3.46 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate slings 0.3.46 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-targets v0.48.0
[INFO] [stderr]   Downloaded futures-task v0.3.28
[INFO] [stderr]   Downloaded futures-io v0.3.28
[INFO] [stderr]   Downloaded socket2 v0.5.3
[INFO] [stderr]   Downloaded async-task v4.4.0
[INFO] [stderr]   Downloaded autocfg v1.1.0
[INFO] [stderr]   Downloaded futures-core v0.3.28
[INFO] [stderr]   Downloaded io-uring v0.6.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.9
[INFO] [stderr]   Downloaded slab v0.4.8
[INFO] [stderr]   Downloaded scoped-tls v1.0.1
[INFO] [stderr]   Downloaded futures-util v0.3.28
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.48.0
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.48.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.48.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.48.0
[INFO] [stderr]   Downloaded libc v0.2.146
[INFO] [stderr]   Downloaded windows_i686_gnu v0.48.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.48.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.48.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df0e427c70230c02d6441796fad9a36f0de7c96f6f055c5c5003f2dfddac1749
[INFO] running `Command { std: "docker" "start" "-a" "df0e427c70230c02d6441796fad9a36f0de7c96f6f055c5c5003f2dfddac1749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df0e427c70230c02d6441796fad9a36f0de7c96f6f055c5c5003f2dfddac1749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df0e427c70230c02d6441796fad9a36f0de7c96f6f055c5c5003f2dfddac1749", kill_on_drop: false }`
[INFO] [stdout] df0e427c70230c02d6441796fad9a36f0de7c96f6f055c5c5003f2dfddac1749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35ab7b44e410746a12bed998e6a5808ef45f523e0865484b3a16eea4aff0da44
[INFO] running `Command { std: "docker" "start" "-a" "35ab7b44e410746a12bed998e6a5808ef45f523e0865484b3a16eea4aff0da44", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling io-uring v0.6.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling async-task v4.4.0
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling socket2 v0.5.3
[INFO] [stderr]    Compiling slings v0.3.46 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/driver/mod.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |     Ignored(Box<dyn Any>),
[INFO] [stdout]     |     ------- ^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[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] 192 -     Ignored(Box<dyn Any>),
[INFO] [stdout] 192 +     Ignored(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "35ab7b44e410746a12bed998e6a5808ef45f523e0865484b3a16eea4aff0da44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ab7b44e410746a12bed998e6a5808ef45f523e0865484b3a16eea4aff0da44", kill_on_drop: false }`
[INFO] [stdout] 35ab7b44e410746a12bed998e6a5808ef45f523e0865484b3a16eea4aff0da44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a0e1472b8da1125d6570556eb2a81bf03f7ba3e6025cba03a6ae5844c1e5e08
[INFO] running `Command { std: "docker" "start" "-a" "0a0e1472b8da1125d6570556eb2a81bf03f7ba3e6025cba03a6ae5844c1e5e08", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/driver/mod.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |     Ignored(Box<dyn Any>),
[INFO] [stdout]     |     ------- ^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[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] 192 -     Ignored(Box<dyn Any>),
[INFO] [stdout] 192 +     Ignored(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling slings v0.3.46 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/driver/mod.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |     Ignored(Box<dyn Any>),
[INFO] [stdout]     |     ------- ^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[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] 192 -     Ignored(Box<dyn Any>),
[INFO] [stdout] 192 +     Ignored(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.87s
[INFO] running `Command { std: "docker" "inspect" "0a0e1472b8da1125d6570556eb2a81bf03f7ba3e6025cba03a6ae5844c1e5e08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a0e1472b8da1125d6570556eb2a81bf03f7ba3e6025cba03a6ae5844c1e5e08", kill_on_drop: false }`
[INFO] [stdout] 0a0e1472b8da1125d6570556eb2a81bf03f7ba3e6025cba03a6ae5844c1e5e08