[INFO] fetching crate empty-fallback-chain 2.0.0...
[INFO] testing empty-fallback-chain-2.0.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate empty-fallback-chain 2.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate empty-fallback-chain 2.0.0
[INFO] finished tweaking crates.io crate empty-fallback-chain 2.0.0
[INFO] tweaked toml for crates.io crate empty-fallback-chain 2.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate empty-fallback-chain 2.0.0 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 empty-fallback-chain 2.0.0 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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a08621d44b0cca20d221fee27a5f77336e410a2d8cca53b58e188d9f1d6231b9
[INFO] running `Command { std: "docker" "start" "-a" "a08621d44b0cca20d221fee27a5f77336e410a2d8cca53b58e188d9f1d6231b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a08621d44b0cca20d221fee27a5f77336e410a2d8cca53b58e188d9f1d6231b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a08621d44b0cca20d221fee27a5f77336e410a2d8cca53b58e188d9f1d6231b9", kill_on_drop: false }`
[INFO] [stdout] a08621d44b0cca20d221fee27a5f77336e410a2d8cca53b58e188d9f1d6231b9
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc88eb89dfbe1d282b90dab290ef79c1f52d73c42d748afd61905f577d87bc89
[INFO] running `Command { std: "docker" "start" "-a" "cc88eb89dfbe1d282b90dab290ef79c1f52d73c42d748afd61905f577d87bc89", kill_on_drop: false }`
[INFO] [stderr]    Compiling empty-fallback-chain v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "cc88eb89dfbe1d282b90dab290ef79c1f52d73c42d748afd61905f577d87bc89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc88eb89dfbe1d282b90dab290ef79c1f52d73c42d748afd61905f577d87bc89", kill_on_drop: false }`
[INFO] [stdout] cc88eb89dfbe1d282b90dab290ef79c1f52d73c42d748afd61905f577d87bc89
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d3341e275b777e30325c61c5c6b2eb3a4a36e3cc936764b6bc2ca9c78187fa2
[INFO] running `Command { std: "docker" "start" "-a" "8d3341e275b777e30325c61c5c6b2eb3a4a36e3cc936764b6bc2ca9c78187fa2", kill_on_drop: false }`
[INFO] [stderr]    Compiling empty-fallback-chain v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "8d3341e275b777e30325c61c5c6b2eb3a4a36e3cc936764b6bc2ca9c78187fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d3341e275b777e30325c61c5c6b2eb3a4a36e3cc936764b6bc2ca9c78187fa2", kill_on_drop: false }`
[INFO] [stdout] 8d3341e275b777e30325c61c5c6b2eb3a4a36e3cc936764b6bc2ca9c78187fa2
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 67a473250c55b3097ad478770e17274c8b0c96b0060dcfcf6168959de3a091bb
[INFO] running `Command { std: "docker" "start" "-a" "67a473250c55b3097ad478770e17274c8b0c96b0060dcfcf6168959de3a091bb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/empty_fallback_chain-d80fa0f7cb85934d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::chained_priority_basics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests empty_fallback_chain
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] test src/lib.rs - IteratorExt::maybe_empty_fallback_chain (line 604) ... ok
[INFO] [stdout] test src/lib.rs - IteratorExt::empty_fallback_chain (line 436) ... ok
[INFO] [stdout] test src/lib.rs - IteratorExt::empty_fallback_chain (line 468) ... ok
[INFO] [stdout] test src/lib.rs - IteratorExt::empty_fallback_chain (line 486) ... ok
[INFO] [stdout] test src/lib.rs - pre_empty_fallback_chain (line 40) ... ok
[INFO] [stdout] test src/lib.rs - IteratorExt::empty_fallback_chain (line 447) ... ok
[INFO] [stdout] test src/lib.rs - IteratorExt::maybe_empty_fallback_chain (line 619) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.66s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "67a473250c55b3097ad478770e17274c8b0c96b0060dcfcf6168959de3a091bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67a473250c55b3097ad478770e17274c8b0c96b0060dcfcf6168959de3a091bb", kill_on_drop: false }`
[INFO] [stdout] 67a473250c55b3097ad478770e17274c8b0c96b0060dcfcf6168959de3a091bb