[INFO] fetching crate composable-allocators 0.3.5...
[INFO] checking composable-allocators-0.3.5 against master#49b6ac01d6f4c3da812039ae846407a20961aa4c for pr-154887
[INFO] extracting crate composable-allocators 0.3.5 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate composable-allocators 0.3.5
[INFO] finished tweaking crates.io crate composable-allocators 0.3.5
[INFO] tweaked toml for crates.io crate composable-allocators 0.3.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate composable-allocators 0.3.5 on toolchain 49b6ac01d6f4c3da812039ae846407a20961aa4c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate composable-allocators 0.3.5 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" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const-default-derive v0.2.0
[INFO] [stderr]   Downloaded exit-no-std v0.3.0
[INFO] [stderr]   Downloaded panicking v0.7.0
[INFO] [stderr]   Downloaded pc-ints v0.4.0
[INFO] [stderr]   Downloaded errno-sys v0.2.0
[INFO] [stderr]   Downloaded errno-no-std v0.2.2
[INFO] [stderr]   Downloaded sync-no-std v0.1.4
[INFO] [stderr]   Downloaded print-no-std v0.3.0
[INFO] [stderr]   Downloaded iter-identify_first_last v0.2.3
[INFO] [stderr]   Downloaded panicking v0.5.0
[INFO] [stderr]   Downloaded dos-cp v0.8.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66e6f97f1cc92946b396f9be9840798d58dc7e4259056bc18ed0deb2ad0af419
[INFO] running `Command { std: "docker" "start" "-a" "66e6f97f1cc92946b396f9be9840798d58dc7e4259056bc18ed0deb2ad0af419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66e6f97f1cc92946b396f9be9840798d58dc7e4259056bc18ed0deb2ad0af419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66e6f97f1cc92946b396f9be9840798d58dc7e4259056bc18ed0deb2ad0af419", kill_on_drop: false }`
[INFO] [stdout] 66e6f97f1cc92946b396f9be9840798d58dc7e4259056bc18ed0deb2ad0af419
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+49b6ac01d6f4c3da812039ae846407a20961aa4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac8da85f53b597545a0679e5c1002f1b491658de88f68d1d8a48e48a079be05a
[INFO] running `Command { std: "docker" "start" "-a" "ac8da85f53b597545a0679e5c1002f1b491658de88f68d1d8a48e48a079be05a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking const-default v1.0.0
[INFO] [stderr]    Compiling errno-sys v0.2.0
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking panicking v0.5.0
[INFO] [stderr]     Checking sync-no-std v0.1.4
[INFO] [stderr]     Checking errno-no-std v0.2.2
[INFO] [stderr]     Checking print-no-std v0.3.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling const-default-derive v0.2.0
[INFO] [stderr]     Checking composable-allocators v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.57s
[INFO] running `Command { std: "docker" "inspect" "ac8da85f53b597545a0679e5c1002f1b491658de88f68d1d8a48e48a079be05a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac8da85f53b597545a0679e5c1002f1b491658de88f68d1d8a48e48a079be05a", kill_on_drop: false }`
[INFO] [stdout] ac8da85f53b597545a0679e5c1002f1b491658de88f68d1d8a48e48a079be05a