[INFO] fetching crate rustack 0.1.0...
[INFO] building rustack-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate rustack 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate rustack 0.1.0
[INFO] finished tweaking crates.io crate rustack 0.1.0
[INFO] tweaked toml for crates.io crate rustack 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustack 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustack 0.1.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2262df857c5a54d88c0e1371a9a7010ae6bef36be78ebbc5bace38928a092e76
[INFO] running `Command { std: "docker" "start" "-a" "2262df857c5a54d88c0e1371a9a7010ae6bef36be78ebbc5bace38928a092e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2262df857c5a54d88c0e1371a9a7010ae6bef36be78ebbc5bace38928a092e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2262df857c5a54d88c0e1371a9a7010ae6bef36be78ebbc5bace38928a092e76", kill_on_drop: false }`
[INFO] [stdout] 2262df857c5a54d88c0e1371a9a7010ae6bef36be78ebbc5bace38928a092e76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a70f16db20454f435a17a09796e854ef9201cdaf41449e756fd09b78e8c90694
[INFO] running `Command { std: "docker" "start" "-a" "a70f16db20454f435a17a09796e854ef9201cdaf41449e756fd09b78e8c90694", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "a70f16db20454f435a17a09796e854ef9201cdaf41449e756fd09b78e8c90694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a70f16db20454f435a17a09796e854ef9201cdaf41449e756fd09b78e8c90694", kill_on_drop: false }`
[INFO] [stdout] a70f16db20454f435a17a09796e854ef9201cdaf41449e756fd09b78e8c90694
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 592ed74276f30565a9c393f6c996d8d9cb1f83caff92bcb3aa64dd79be10cc16
[INFO] running `Command { std: "docker" "start" "-a" "592ed74276f30565a9c393f6c996d8d9cb1f83caff92bcb3aa64dd79be10cc16", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "592ed74276f30565a9c393f6c996d8d9cb1f83caff92bcb3aa64dd79be10cc16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "592ed74276f30565a9c393f6c996d8d9cb1f83caff92bcb3aa64dd79be10cc16", kill_on_drop: false }`
[INFO] [stdout] 592ed74276f30565a9c393f6c996d8d9cb1f83caff92bcb3aa64dd79be10cc16