[INFO] fetching crate stackerror 0.7.0...
[INFO] building stackerror-0.7.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate stackerror 0.7.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate stackerror 0.7.0
[INFO] finished tweaking crates.io crate stackerror 0.7.0
[INFO] tweaked toml for crates.io crate stackerror 0.7.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stackerror 0.7.0 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 stackerror 0.7.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3cfe3c3045fb786b08de027973e20828522bd66306c07acefcdb3251fb46188e
[INFO] running `Command { std: "docker" "start" "-a" "3cfe3c3045fb786b08de027973e20828522bd66306c07acefcdb3251fb46188e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cfe3c3045fb786b08de027973e20828522bd66306c07acefcdb3251fb46188e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cfe3c3045fb786b08de027973e20828522bd66306c07acefcdb3251fb46188e", kill_on_drop: false }`
[INFO] [stdout] 3cfe3c3045fb786b08de027973e20828522bd66306c07acefcdb3251fb46188e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 842b94bbc674bcca6a37fca0779e77ac5671a0b94722a3d77945dbcfc0d7277c
[INFO] running `Command { std: "docker" "start" "-a" "842b94bbc674bcca6a37fca0779e77ac5671a0b94722a3d77945dbcfc0d7277c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling stackerror-impl v0.7.0
[INFO] [stderr]    Compiling stackerror v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.41s
[INFO] running `Command { std: "docker" "inspect" "842b94bbc674bcca6a37fca0779e77ac5671a0b94722a3d77945dbcfc0d7277c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "842b94bbc674bcca6a37fca0779e77ac5671a0b94722a3d77945dbcfc0d7277c", kill_on_drop: false }`
[INFO] [stdout] 842b94bbc674bcca6a37fca0779e77ac5671a0b94722a3d77945dbcfc0d7277c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7b5f4ce84c1db8fbfc0d395b9c49f0cca83fa60ccbe9d0382cc43ef2aea1ad02
[INFO] running `Command { std: "docker" "start" "-a" "7b5f4ce84c1db8fbfc0d395b9c49f0cca83fa60ccbe9d0382cc43ef2aea1ad02", kill_on_drop: false }`
[INFO] [stderr]    Compiling stackerror v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "7b5f4ce84c1db8fbfc0d395b9c49f0cca83fa60ccbe9d0382cc43ef2aea1ad02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b5f4ce84c1db8fbfc0d395b9c49f0cca83fa60ccbe9d0382cc43ef2aea1ad02", kill_on_drop: false }`
[INFO] [stdout] 7b5f4ce84c1db8fbfc0d395b9c49f0cca83fa60ccbe9d0382cc43ef2aea1ad02