[INFO] fetching crate magnesium-engine 0.0.2...
[INFO] testing magnesium-engine-0.0.2 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate magnesium-engine 0.0.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate magnesium-engine 0.0.2
[INFO] finished tweaking crates.io crate magnesium-engine 0.0.2
[INFO] tweaked toml for crates.io crate magnesium-engine 0.0.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate magnesium-engine 0.0.2 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate magnesium-engine 0.0.2 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" "+b83b707f97d809763b7861afa7638871f3339a33" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62eff4568467160d322139384558ead1fa840a3b9f324d452850d05ee66c229f
[INFO] running `Command { std: "docker" "start" "-a" "62eff4568467160d322139384558ead1fa840a3b9f324d452850d05ee66c229f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62eff4568467160d322139384558ead1fa840a3b9f324d452850d05ee66c229f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62eff4568467160d322139384558ead1fa840a3b9f324d452850d05ee66c229f", kill_on_drop: false }`
[INFO] [stdout] 62eff4568467160d322139384558ead1fa840a3b9f324d452850d05ee66c229f
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efe5dea5161ce490ed76bb5016761a68d0d4fae67a91fde9fa4b9d77ba83215b
[INFO] running `Command { std: "docker" "start" "-a" "efe5dea5161ce490ed76bb5016761a68d0d4fae67a91fde9fa4b9d77ba83215b", kill_on_drop: false }`
[INFO] [stderr]    Compiling magnesium-engine v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "efe5dea5161ce490ed76bb5016761a68d0d4fae67a91fde9fa4b9d77ba83215b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efe5dea5161ce490ed76bb5016761a68d0d4fae67a91fde9fa4b9d77ba83215b", kill_on_drop: false }`
[INFO] [stdout] efe5dea5161ce490ed76bb5016761a68d0d4fae67a91fde9fa4b9d77ba83215b
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17779ee6c583a34702caa2ab6bc478ab1af8d46634685dc37b61132c10f1182a
[INFO] running `Command { std: "docker" "start" "-a" "17779ee6c583a34702caa2ab6bc478ab1af8d46634685dc37b61132c10f1182a", kill_on_drop: false }`
[INFO] [stderr]    Compiling magnesium-engine v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "17779ee6c583a34702caa2ab6bc478ab1af8d46634685dc37b61132c10f1182a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17779ee6c583a34702caa2ab6bc478ab1af8d46634685dc37b61132c10f1182a", kill_on_drop: false }`
[INFO] [stdout] 17779ee6c583a34702caa2ab6bc478ab1af8d46634685dc37b61132c10f1182a
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 69432b472f0ba60f83f6a8cd3fcf30abebefe37c182d5f48ae81bc96650d676d
[INFO] running `Command { std: "docker" "start" "-a" "69432b472f0ba60f83f6a8cd3fcf30abebefe37c182d5f48ae81bc96650d676d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/magnesium_engine-d1919ece47cdb08f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "69432b472f0ba60f83f6a8cd3fcf30abebefe37c182d5f48ae81bc96650d676d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69432b472f0ba60f83f6a8cd3fcf30abebefe37c182d5f48ae81bc96650d676d", kill_on_drop: false }`
[INFO] [stdout] 69432b472f0ba60f83f6a8cd3fcf30abebefe37c182d5f48ae81bc96650d676d