[INFO] fetching crate powr 0.3.0...
[INFO] building powr-0.3.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate powr 0.3.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate powr 0.3.0
[INFO] finished tweaking crates.io crate powr 0.3.0
[INFO] tweaked toml for crates.io crate powr 0.3.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate powr 0.3.0 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 powr 0.3.0 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] cfd6521805fcc6b14d03508a30c52e2575ace76b7e3bfcc20db850e5923e8634
[INFO] running `Command { std: "docker" "start" "-a" "cfd6521805fcc6b14d03508a30c52e2575ace76b7e3bfcc20db850e5923e8634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfd6521805fcc6b14d03508a30c52e2575ace76b7e3bfcc20db850e5923e8634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd6521805fcc6b14d03508a30c52e2575ace76b7e3bfcc20db850e5923e8634", kill_on_drop: false }`
[INFO] [stdout] cfd6521805fcc6b14d03508a30c52e2575ace76b7e3bfcc20db850e5923e8634
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 4558fc39992c5a3f6fdf04bb8dbd4605f535549f91cd2246c5e4637088d57d1e
[INFO] running `Command { std: "docker" "start" "-a" "4558fc39992c5a3f6fdf04bb8dbd4605f535549f91cd2246c5e4637088d57d1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling powr v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "4558fc39992c5a3f6fdf04bb8dbd4605f535549f91cd2246c5e4637088d57d1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4558fc39992c5a3f6fdf04bb8dbd4605f535549f91cd2246c5e4637088d57d1e", kill_on_drop: false }`
[INFO] [stdout] 4558fc39992c5a3f6fdf04bb8dbd4605f535549f91cd2246c5e4637088d57d1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 580a85395c4ce20014f5e206fe7143d37c3178dfaaa53c2dd6fbc4f5068f26a8
[INFO] running `Command { std: "docker" "start" "-a" "580a85395c4ce20014f5e206fe7143d37c3178dfaaa53c2dd6fbc4f5068f26a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling powr v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "580a85395c4ce20014f5e206fe7143d37c3178dfaaa53c2dd6fbc4f5068f26a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "580a85395c4ce20014f5e206fe7143d37c3178dfaaa53c2dd6fbc4f5068f26a8", kill_on_drop: false }`
[INFO] [stdout] 580a85395c4ce20014f5e206fe7143d37c3178dfaaa53c2dd6fbc4f5068f26a8