[INFO] fetching crate frugalos_core 1.2.0...
[INFO] testing frugalos_core-1.2.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate frugalos_core 1.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate frugalos_core 1.2.0
[INFO] finished tweaking crates.io crate frugalos_core 1.2.0
[INFO] tweaked toml for crates.io crate frugalos_core 1.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate frugalos_core 1.2.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to latest compatible versions
[INFO] [stderr]       Adding rustracing v0.1.11 (available: v0.6.0)
[INFO] [stderr]       Adding rustracing_jaeger v0.1.12 (available: v0.10.0)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (available: v0.9.34+deprecated)
[INFO] [stderr]       Adding trackable v0.2.24 (available: v1.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb3e36a860e2f4210adf3b3a68c2480bf81e273043661df84124569a1e05842d
[INFO] running `Command { std: "docker" "start" "-a" "fb3e36a860e2f4210adf3b3a68c2480bf81e273043661df84124569a1e05842d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb3e36a860e2f4210adf3b3a68c2480bf81e273043661df84124569a1e05842d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb3e36a860e2f4210adf3b3a68c2480bf81e273043661df84124569a1e05842d", kill_on_drop: false }`
[INFO] [stdout] fb3e36a860e2f4210adf3b3a68c2480bf81e273043661df84124569a1e05842d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0aeb5509cd726df8acbbebf204ce6f9a111379dea8715c54b92f281ab3487af
[INFO] running `Command { std: "docker" "start" "-a" "a0aeb5509cd726df8acbbebf204ce6f9a111379dea8715c54b92f281ab3487af", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling trackable_derive v1.0.0
[INFO] [stderr]    Compiling trackable v1.3.0
[INFO] [stderr]    Compiling trackable v0.2.24
[INFO] [stderr]    Compiling thrift_codec v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling rustracing v0.1.11
[INFO] [stderr]    Compiling rustracing_jaeger v0.1.12
[INFO] [stderr]    Compiling frugalos_core v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.62s
[INFO] running `Command { std: "docker" "inspect" "a0aeb5509cd726df8acbbebf204ce6f9a111379dea8715c54b92f281ab3487af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0aeb5509cd726df8acbbebf204ce6f9a111379dea8715c54b92f281ab3487af", kill_on_drop: false }`
[INFO] [stdout] a0aeb5509cd726df8acbbebf204ce6f9a111379dea8715c54b92f281ab3487af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5374f33a75694e7cfebff816406ba0563c332869339a88400f7a152e9321dc17
[INFO] running `Command { std: "docker" "start" "-a" "5374f33a75694e7cfebff816406ba0563c332869339a88400f7a152e9321dc17", kill_on_drop: false }`
[INFO] [stderr]    Compiling frugalos_core v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "5374f33a75694e7cfebff816406ba0563c332869339a88400f7a152e9321dc17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5374f33a75694e7cfebff816406ba0563c332869339a88400f7a152e9321dc17", kill_on_drop: false }`
[INFO] [stdout] 5374f33a75694e7cfebff816406ba0563c332869339a88400f7a152e9321dc17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e36735db999d9e7b34cc19d504b06129de4dd2645e77fa508b1997a4078558d
[INFO] running `Command { std: "docker" "start" "-a" "1e36735db999d9e7b34cc19d504b06129de4dd2645e77fa508b1997a4078558d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/frugalos_core-7fb679238d1e2720)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test serde_ext::tests::default_and_deserialize_work ... ok
[INFO] [stdout] test serde_ext::tests::to_millis_works ... ok
[INFO] [stdout] test serde_ext::tests::serialize_and_deserialize_work ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests frugalos_core
[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" "1e36735db999d9e7b34cc19d504b06129de4dd2645e77fa508b1997a4078558d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e36735db999d9e7b34cc19d504b06129de4dd2645e77fa508b1997a4078558d", kill_on_drop: false }`
[INFO] [stdout] 1e36735db999d9e7b34cc19d504b06129de4dd2645e77fa508b1997a4078558d