[INFO] fetching crate tf_observer 0.1.3...
[INFO] testing tf_observer-0.1.3 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate tf_observer 0.1.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate tf_observer 0.1.3
[INFO] finished tweaking crates.io crate tf_observer 0.1.3
[INFO] tweaked toml for crates.io crate tf_observer 0.1.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tf_observer 0.1.3 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages to latest compatible versions
[INFO] [stderr]       Adding mockall v0.11.4 (available: v0.13.1)
[INFO] [stderr]       Adding mockito v0.31.1 (available: v1.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce20f6e0ddc352132f51aa9e643bd2d43dc18a7daf495e707bf7558cd273c1d6
[INFO] running `Command { std: "docker" "start" "-a" "ce20f6e0ddc352132f51aa9e643bd2d43dc18a7daf495e707bf7558cd273c1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce20f6e0ddc352132f51aa9e643bd2d43dc18a7daf495e707bf7558cd273c1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce20f6e0ddc352132f51aa9e643bd2d43dc18a7daf495e707bf7558cd273c1d6", kill_on_drop: false }`
[INFO] [stdout] ce20f6e0ddc352132f51aa9e643bd2d43dc18a7daf495e707bf7558cd273c1d6
[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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e8c0b54ecf0e38f83405b9942be5f8f5c5d3b35104015f5f400f1369ebf90c3
[INFO] running `Command { std: "docker" "start" "-a" "7e8c0b54ecf0e38f83405b9942be5f8f5c5d3b35104015f5f400f1369ebf90c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling tf_observer v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "7e8c0b54ecf0e38f83405b9942be5f8f5c5d3b35104015f5f400f1369ebf90c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e8c0b54ecf0e38f83405b9942be5f8f5c5d3b35104015f5f400f1369ebf90c3", kill_on_drop: false }`
[INFO] [stdout] 7e8c0b54ecf0e38f83405b9942be5f8f5c5d3b35104015f5f400f1369ebf90c3
[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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 803cee2e8c71c038d2f12eeb370a36a653528065a92be22a560c25c6ff87ba3d
[INFO] running `Command { std: "docker" "start" "-a" "803cee2e8c71c038d2f12eeb370a36a653528065a92be22a560c25c6ff87ba3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling downcast v0.11.0
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling fragile v2.0.1
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling assert-json-diff v2.0.2
[INFO] [stderr]    Compiling mockito v0.31.1
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]    Compiling mockall v0.11.4
[INFO] [stderr]    Compiling tf_observer v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 11.08s
[INFO] running `Command { std: "docker" "inspect" "803cee2e8c71c038d2f12eeb370a36a653528065a92be22a560c25c6ff87ba3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "803cee2e8c71c038d2f12eeb370a36a653528065a92be22a560c25c6ff87ba3d", kill_on_drop: false }`
[INFO] [stdout] 803cee2e8c71c038d2f12eeb370a36a653528065a92be22a560c25c6ff87ba3d
[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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c2bcc3c8aacabc9b676c1391c947fc9f7dce59694e1a10b1dade5d0eada450c
[INFO] running `Command { std: "docker" "start" "-a" "8c2bcc3c8aacabc9b676c1391c947fc9f7dce59694e1a10b1dade5d0eada450c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tf_observer-035cead0a76cc98f)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::observable_multi_observer ... ok
[INFO] [stdout] test test::observer_list_test_clone_pre_attach ... ok
[INFO] [stdout] test test::observer_list_test_clone ... ok
[INFO] [stdout] test test::observer_list_attach_detach ... ok
[INFO] [stdout] test test::observer_list_test_drop_inactive ... ok
[INFO] [stdout] test test::observer_list_notify ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tf_observer
[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" "8c2bcc3c8aacabc9b676c1391c947fc9f7dce59694e1a10b1dade5d0eada450c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c2bcc3c8aacabc9b676c1391c947fc9f7dce59694e1a10b1dade5d0eada450c", kill_on_drop: false }`
[INFO] [stdout] 8c2bcc3c8aacabc9b676c1391c947fc9f7dce59694e1a10b1dade5d0eada450c