[INFO] fetching crate concur_demo 0.1.0...
[INFO] testing concur_demo-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate concur_demo 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate concur_demo 0.1.0
[INFO] finished tweaking crates.io crate concur_demo 0.1.0
[INFO] tweaked toml for crates.io crate concur_demo 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate concur_demo 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate concur_demo 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87e0ad17fe1107e89c1a1c0cd4ed4dda370e6168fbc88c6ef861912d12caf6f7
[INFO] running `Command { std: "docker" "start" "-a" "87e0ad17fe1107e89c1a1c0cd4ed4dda370e6168fbc88c6ef861912d12caf6f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87e0ad17fe1107e89c1a1c0cd4ed4dda370e6168fbc88c6ef861912d12caf6f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e0ad17fe1107e89c1a1c0cd4ed4dda370e6168fbc88c6ef861912d12caf6f7", kill_on_drop: false }`
[INFO] [stdout] 87e0ad17fe1107e89c1a1c0cd4ed4dda370e6168fbc88c6ef861912d12caf6f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e777644e37829e007fbde205649974c1a8648242a7b3c0dd42829acb4104e6c7
[INFO] running `Command { std: "docker" "start" "-a" "e777644e37829e007fbde205649974c1a8648242a7b3c0dd42829acb4104e6c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling concur_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "e777644e37829e007fbde205649974c1a8648242a7b3c0dd42829acb4104e6c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e777644e37829e007fbde205649974c1a8648242a7b3c0dd42829acb4104e6c7", kill_on_drop: false }`
[INFO] [stdout] e777644e37829e007fbde205649974c1a8648242a7b3c0dd42829acb4104e6c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a93615c77ab33bc83971bf6451bfbc58ed8521693f654d4564b92751d86b4aa
[INFO] running `Command { std: "docker" "start" "-a" "1a93615c77ab33bc83971bf6451bfbc58ed8521693f654d4564b92751d86b4aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling concur_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "1a93615c77ab33bc83971bf6451bfbc58ed8521693f654d4564b92751d86b4aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a93615c77ab33bc83971bf6451bfbc58ed8521693f654d4564b92751d86b4aa", kill_on_drop: false }`
[INFO] [stdout] 1a93615c77ab33bc83971bf6451bfbc58ed8521693f654d4564b92751d86b4aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a6ef33cd3a69c5b8ad58893ef38f1f2fcdf670a0c5f2635c23eff12bd66a6fcf
[INFO] running `Command { std: "docker" "start" "-a" "a6ef33cd3a69c5b8ad58893ef38f1f2fcdf670a0c5f2635c23eff12bd66a6fcf", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/concur_demo-a71d651893bda9ec)
[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" "a6ef33cd3a69c5b8ad58893ef38f1f2fcdf670a0c5f2635c23eff12bd66a6fcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ef33cd3a69c5b8ad58893ef38f1f2fcdf670a0c5f2635c23eff12bd66a6fcf", kill_on_drop: false }`
[INFO] [stdout] a6ef33cd3a69c5b8ad58893ef38f1f2fcdf670a0c5f2635c23eff12bd66a6fcf