[INFO] fetching crate functiontrace-server 0.3.5...
[INFO] testing functiontrace-server-0.3.5 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate functiontrace-server 0.3.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate functiontrace-server 0.3.5 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate functiontrace-server 0.3.5
[INFO] finished tweaking crates.io crate functiontrace-server 0.3.5
[INFO] tweaked toml for crates.io crate functiontrace-server 0.3.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate functiontrace-server 0.3.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argh_shared v0.1.4
[INFO] [stderr]   Downloaded argh_derive v0.1.4
[INFO] [stderr]   Downloaded bytesize v1.0.1
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.0
[INFO] [stderr]   Downloaded argh v0.1.4
[INFO] [stderr]   Downloaded mio v0.7.5
[INFO] [stderr]   Downloaded paste v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ed2d318b66178ce67e051c82e8768b9c16cf17747c002e98eb3322df553bf05
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9ed2d318b66178ce67e051c82e8768b9c16cf17747c002e98eb3322df553bf05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ed2d318b66178ce67e051c82e8768b9c16cf17747c002e98eb3322df553bf05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ed2d318b66178ce67e051c82e8768b9c16cf17747c002e98eb3322df553bf05", kill_on_drop: false }`
[INFO] [stdout] 9ed2d318b66178ce67e051c82e8768b9c16cf17747c002e98eb3322df553bf05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f7c333126fb08e908ed950a0d03f191a2291fcc46e26844f05d1ff906799d43e
[INFO] running `Command { std: "docker" "start" "-a" "f7c333126fb08e908ed950a0d03f191a2291fcc46e26844f05d1ff906799d43e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling argh_shared v0.1.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling paste v1.0.2
[INFO] [stderr]    Compiling bytesize v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling mio v0.7.5
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling env_logger v0.8.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rmp v0.8.9
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]    Compiling argh v0.1.4
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling rmp-serde v0.14.4
[INFO] [stderr]    Compiling functiontrace-server v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `GarbageCollection`
[INFO] [stdout]   --> src/profile_generator.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     GarbageCollection,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.16s
[INFO] running `Command { std: "docker" "inspect" "f7c333126fb08e908ed950a0d03f191a2291fcc46e26844f05d1ff906799d43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c333126fb08e908ed950a0d03f191a2291fcc46e26844f05d1ff906799d43e", kill_on_drop: false }`
[INFO] [stdout] f7c333126fb08e908ed950a0d03f191a2291fcc46e26844f05d1ff906799d43e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f35e3dbfc64714636b797a34ced485a80c2dd5e8603b10e5377dff0e3e6b834
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f35e3dbfc64714636b797a34ced485a80c2dd5e8603b10e5377dff0e3e6b834", kill_on_drop: false }`
[INFO] [stderr]    Compiling functiontrace-server v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `GarbageCollection`
[INFO] [stdout]   --> src/profile_generator.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     GarbageCollection,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GarbageCollection`
[INFO] [stdout]   --> src/profile_generator.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     GarbageCollection,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "2f35e3dbfc64714636b797a34ced485a80c2dd5e8603b10e5377dff0e3e6b834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f35e3dbfc64714636b797a34ced485a80c2dd5e8603b10e5377dff0e3e6b834", kill_on_drop: false }`
[INFO] [stdout] 2f35e3dbfc64714636b797a34ced485a80c2dd5e8603b10e5377dff0e3e6b834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] effaf506d9cbfb6056ec23d62daab78b97001be7a3e61e9127a7a3b11ca6a7d6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "effaf506d9cbfb6056ec23d62daab78b97001be7a3e61e9127a7a3b11ca6a7d6", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `GarbageCollection`
[INFO] [stderr]   --> src/profile_generator.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     GarbageCollection,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GarbageCollection`
[INFO] [stderr]   --> src/profile_generator.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     GarbageCollection,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/functiontrace_server-90b8e53ccc5b5358
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/functiontrace_server-99518e9f5944f958
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests functiontrace-server
[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
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "effaf506d9cbfb6056ec23d62daab78b97001be7a3e61e9127a7a3b11ca6a7d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "effaf506d9cbfb6056ec23d62daab78b97001be7a3e61e9127a7a3b11ca6a7d6", kill_on_drop: false }`
[INFO] [stdout] effaf506d9cbfb6056ec23d62daab78b97001be7a3e61e9127a7a3b11ca6a7d6