[INFO] fetching crate skip-list 0.1.3...
[INFO] building skip-list-0.1.3 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate skip-list 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate skip-list 0.1.3
[INFO] finished tweaking crates.io crate skip-list 0.1.3
[INFO] tweaked toml for crates.io crate skip-list 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate skip-list 0.1.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3d75e3157b43ac8b619b851bfb14caeea0c6dda1d484e4787f9e2cdcded80171
[INFO] running `Command { std: "docker" "start" "-a" "3d75e3157b43ac8b619b851bfb14caeea0c6dda1d484e4787f9e2cdcded80171", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d75e3157b43ac8b619b851bfb14caeea0c6dda1d484e4787f9e2cdcded80171", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d75e3157b43ac8b619b851bfb14caeea0c6dda1d484e4787f9e2cdcded80171", kill_on_drop: false }`
[INFO] [stdout] 3d75e3157b43ac8b619b851bfb14caeea0c6dda1d484e4787f9e2cdcded80171
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b3bad950ad71e46ba1ba71ebc347874e5fd3f88169c79d149c9eb50e71382512
[INFO] running `Command { std: "docker" "start" "-a" "b3bad950ad71e46ba1ba71ebc347874e5fd3f88169c79d149c9eb50e71382512", kill_on_drop: false }`
[INFO] [stderr]    Compiling skip-list v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:498:13
[INFO] [stdout]     |
[INFO] [stdout] 498 |             Box::from_raw(self.head.as_ptr());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 498 |             let _ = Box::from_raw(self.head.as_ptr());
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "b3bad950ad71e46ba1ba71ebc347874e5fd3f88169c79d149c9eb50e71382512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3bad950ad71e46ba1ba71ebc347874e5fd3f88169c79d149c9eb50e71382512", kill_on_drop: false }`
[INFO] [stdout] b3bad950ad71e46ba1ba71ebc347874e5fd3f88169c79d149c9eb50e71382512
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a832d6dba6cbb694e796949595603fc03d3f9484bab3d80e3d08c68cf904f791
[INFO] running `Command { std: "docker" "start" "-a" "a832d6dba6cbb694e796949595603fc03d3f9484bab3d80e3d08c68cf904f791", kill_on_drop: false }`
[INFO] [stderr]    Compiling skip-list v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:498:13
[INFO] [stdout]     |
[INFO] [stdout] 498 |             Box::from_raw(self.head.as_ptr());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 498 |             let _ = Box::from_raw(self.head.as_ptr());
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:498:13
[INFO] [stdout]     |
[INFO] [stdout] 498 |             Box::from_raw(self.head.as_ptr());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 498 |             let _ = Box::from_raw(self.head.as_ptr());
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "a832d6dba6cbb694e796949595603fc03d3f9484bab3d80e3d08c68cf904f791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a832d6dba6cbb694e796949595603fc03d3f9484bab3d80e3d08c68cf904f791", kill_on_drop: false }`
[INFO] [stdout] a832d6dba6cbb694e796949595603fc03d3f9484bab3d80e3d08c68cf904f791
