[INFO] fetching crate double-checked-cell-async 2.0.2...
[INFO] checking double-checked-cell-async-2.0.2 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate double-checked-cell-async 2.0.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate double-checked-cell-async 2.0.2
[INFO] finished tweaking crates.io crate double-checked-cell-async 2.0.2
[INFO] tweaked toml for crates.io crate double-checked-cell-async 2.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate double-checked-cell-async 2.0.2 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.48.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slab v0.4.11
[INFO] [stderr]   Downloaded tokio-macros v0.2.6
[INFO] [stderr]   Downloaded unreachable v1.0.0
[INFO] [stderr]   Downloaded void v1.0.2
[INFO] [stderr]   Downloaded futures-executor v0.3.31
[INFO] [stderr]   Downloaded pin-project-lite v0.1.12
[INFO] [stderr]   Downloaded bytes v0.5.6
[INFO] [stderr]   Downloaded syn v2.0.110
[INFO] [stderr]   Downloaded tokio v0.2.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee9a8e023498f4613773a2429907a86d493050dac23b11ee5d57b97aa33b98f4
[INFO] running `Command { std: "docker" "start" "-a" "ee9a8e023498f4613773a2429907a86d493050dac23b11ee5d57b97aa33b98f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee9a8e023498f4613773a2429907a86d493050dac23b11ee5d57b97aa33b98f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee9a8e023498f4613773a2429907a86d493050dac23b11ee5d57b97aa33b98f4", kill_on_drop: false }`
[INFO] [stdout] ee9a8e023498f4613773a2429907a86d493050dac23b11ee5d57b97aa33b98f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 369258b5b915575c798ed496c9648746e8e0a220ca242d9bee5dfffd0e9f110a
[INFO] running `Command { std: "docker" "start" "-a" "369258b5b915575c798ed496c9648746e8e0a220ca242d9bee5dfffd0e9f110a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking double-checked-cell-async v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.53s
[INFO] running `Command { std: "docker" "inspect" "369258b5b915575c798ed496c9648746e8e0a220ca242d9bee5dfffd0e9f110a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "369258b5b915575c798ed496c9648746e8e0a220ca242d9bee5dfffd0e9f110a", kill_on_drop: false }`
[INFO] [stdout] 369258b5b915575c798ed496c9648746e8e0a220ca242d9bee5dfffd0e9f110a