[INFO] fetching crate gc 0.3.6...
[INFO] testing gc-0.3.6 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate gc 0.3.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gc 0.3.6 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 gc 0.3.6
[INFO] finished tweaking crates.io crate gc 0.3.6
[INFO] tweaked toml for crates.io crate gc 0.3.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 gc_derive v0.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] e941859ff4720a7b1171e6c2aebab3461f017f2e1cb1cec1a51ab37d00c859f1
[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" "e941859ff4720a7b1171e6c2aebab3461f017f2e1cb1cec1a51ab37d00c859f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e941859ff4720a7b1171e6c2aebab3461f017f2e1cb1cec1a51ab37d00c859f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e941859ff4720a7b1171e6c2aebab3461f017f2e1cb1cec1a51ab37d00c859f1", kill_on_drop: false }`
[INFO] [stdout] e941859ff4720a7b1171e6c2aebab3461f017f2e1cb1cec1a51ab37d00c859f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 24a8623f8ef2f758b7803ba9ec3a466b34599123eabb084c88749d4f898147c3
[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" "24a8623f8ef2f758b7803ba9ec3a466b34599123eabb084c88749d4f898147c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling gc v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "24a8623f8ef2f758b7803ba9ec3a466b34599123eabb084c88749d4f898147c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24a8623f8ef2f758b7803ba9ec3a466b34599123eabb084c88749d4f898147c3", kill_on_drop: false }`
[INFO] [stdout] 24a8623f8ef2f758b7803ba9ec3a466b34599123eabb084c88749d4f898147c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 70efb20741796324ba7be2326b0950de223583e0bcd8194ad178a4c90b04b6e7
[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" "70efb20741796324ba7be2326b0950de223583e0bcd8194ad178a4c90b04b6e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling gc_derive v0.3.6
[INFO] [stderr]    Compiling gc v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 19.65s
[INFO] running `Command { std: "docker" "inspect" "70efb20741796324ba7be2326b0950de223583e0bcd8194ad178a4c90b04b6e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70efb20741796324ba7be2326b0950de223583e0bcd8194ad178a4c90b04b6e7", kill_on_drop: false }`
[INFO] [stdout] 70efb20741796324ba7be2326b0950de223583e0bcd8194ad178a4c90b04b6e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2c50bcc26303376b1bb1dbec11240b6c57084b56499779b3550012dee9f6acd4
[INFO] running `Command { std: "docker" "start" "-a" "2c50bcc26303376b1bb1dbec11240b6c57084b56499779b3550012dee9f6acd4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gc-e5519b904755c5d5
[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] [stderr]      Running /opt/rustwide/target/debug/deps/finalize-bd77565c7ea9b064
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test drop_triggers_finalize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gc_semantics-b196e35c2682b14a
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gymnastics_cycle-421975d97d8ffcf0
[INFO] [stdout] test basic_allocate ... ok
[INFO] [stdout] test basic_cycle_allocate ... ok
[INFO] [stdout] test gccell_rooting ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/i128-950f7bf0c9d7cbfb
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_cycle ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test u128 ... ok
[INFO] [stdout] test i128 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/trace_impl-c38ebdcd93e530de
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gc
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - GcCellRef::map (line 674) ... ok
[INFO] [stdout] test src/lib.rs - GcCell<T>::try_borrow (line 519) ... ok
[INFO] [stdout] test src/lib.rs - Gc<T>::from_raw (line 168) ... ok
[INFO] [stdout] test src/lib.rs - GcCellRef::map_split (line 709) ... ok
[INFO] [stdout] test src/lib.rs - GcCellRefMut::map (line 794) ... ok
[INFO] [stdout] test src/lib.rs - GcCell<T>::try_borrow_mut (line 561) ... ok
[INFO] [stdout] test src/lib.rs - Gc<T>::into_raw (line 142) ... ok
[INFO] [stdout] test src/lib.rs - Gc<T>::new (line 64) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2c50bcc26303376b1bb1dbec11240b6c57084b56499779b3550012dee9f6acd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c50bcc26303376b1bb1dbec11240b6c57084b56499779b3550012dee9f6acd4", kill_on_drop: false }`
[INFO] [stdout] 2c50bcc26303376b1bb1dbec11240b6c57084b56499779b3550012dee9f6acd4