[INFO] cloning repository https://github.com/hamiidreza/stacked_gc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hamiidreza/stacked_gc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhamiidreza%2Fstacked_gc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhamiidreza%2Fstacked_gc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c85a2771e81689fab41b65d70008ba9fedef175
[INFO] testing hamiidreza/stacked_gc against master#7704328ba5ae8d6ce0ac303c9d5a1a1605906766 for pr-146989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhamiidreza%2Fstacked_gc" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/hamiidreza/stacked_gc
[INFO] finished tweaking git repo https://github.com/hamiidreza/stacked_gc
[INFO] tweaked toml for git repo https://github.com/hamiidreza/stacked_gc written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hamiidreza/stacked_gc on toolchain 7704328ba5ae8d6ce0ac303c9d5a1a1605906766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/hamiidreza/stacked_gc 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" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zeroize v1.8.2
[INFO] [stderr]   Downloaded zeroize_derive v1.4.2
[INFO] [stderr]   Downloaded cfg-if v1.0.4
[INFO] [stderr]   Downloaded quote v1.0.41
[INFO] [stderr]   Downloaded unicode-ident v1.0.22
[INFO] [stderr]   Downloaded arrayref v0.3.9
[INFO] [stderr]   Downloaded constant_time_eq v0.3.1
[INFO] [stderr]   Downloaded generic-array v0.14.7
[INFO] [stderr]   Downloaded arrayvec v0.7.6
[INFO] [stderr]   Downloaded find-msvc-tools v0.1.5
[INFO] [stderr]   Downloaded wasi v0.11.1+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded getrandom v0.2.16
[INFO] [stderr]   Downloaded cc v1.2.47
[INFO] [stderr]   Downloaded rand v0.8.5
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.28
[INFO] [stderr]   Downloaded x25519-dalek v1.1.1
[INFO] [stderr]   Downloaded typenum v1.19.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.103
[INFO] [stderr]   Downloaded rand_core v0.6.4
[INFO] [stderr]   Downloaded blake3 v1.8.2
[INFO] [stderr]   Downloaded digest v0.10.7
[INFO] [stderr]   Downloaded zerocopy v0.8.28
[INFO] [stderr]   Downloaded sha2 v0.10.9
[INFO] [stderr]   Downloaded syn v2.0.108
[INFO] [stderr]   Downloaded byteorder v1.5.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.21
[INFO] [stderr]   Downloaded cpufeatures v0.2.17
[INFO] [stderr]   Downloaded block-buffer v0.10.4
[INFO] [stderr]   Downloaded crypto-common v0.1.7
[INFO] [stderr]   Downloaded subtle v2.6.1
[INFO] [stderr]   Downloaded libc v0.2.177
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cea2763135886316e02c30275e870e0078a4668a3d699ac118d89efbe453339
[INFO] running `Command { std: "docker" "start" "-a" "6cea2763135886316e02c30275e870e0078a4668a3d699ac118d89efbe453339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cea2763135886316e02c30275e870e0078a4668a3d699ac118d89efbe453339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cea2763135886316e02c30275e870e0078a4668a3d699ac118d89efbe453339", kill_on_drop: false }`
[INFO] [stdout] 6cea2763135886316e02c30275e870e0078a4668a3d699ac118d89efbe453339
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d7ff15b628ef87d1d8d594b5f63d6f72b3266f74ccde026a0574acaa368ef6f
[INFO] running `Command { std: "docker" "start" "-a" "1d7ff15b628ef87d1d8d594b5f63d6f72b3266f74ccde026a0574acaa368ef6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling zerocopy v0.8.28
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling cc v1.2.47
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling blake3 v1.8.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling curve25519-dalek v3.2.0
[INFO] [stderr]    Compiling x25519-dalek v1.1.1
[INFO] [stderr]    Compiling stacked_gc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.34s
[INFO] running `Command { std: "docker" "inspect" "1d7ff15b628ef87d1d8d594b5f63d6f72b3266f74ccde026a0574acaa368ef6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d7ff15b628ef87d1d8d594b5f63d6f72b3266f74ccde026a0574acaa368ef6f", kill_on_drop: false }`
[INFO] [stdout] 1d7ff15b628ef87d1d8d594b5f63d6f72b3266f74ccde026a0574acaa368ef6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0ea117b00fcb9c44422748662e5677d900a99f3817e7fc99738f5f2d507b3e3
[INFO] running `Command { std: "docker" "start" "-a" "e0ea117b00fcb9c44422748662e5677d900a99f3817e7fc99738f5f2d507b3e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling stacked_gc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "e0ea117b00fcb9c44422748662e5677d900a99f3817e7fc99738f5f2d507b3e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ea117b00fcb9c44422748662e5677d900a99f3817e7fc99738f5f2d507b3e3", kill_on_drop: false }`
[INFO] [stdout] e0ea117b00fcb9c44422748662e5677d900a99f3817e7fc99738f5f2d507b3e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+7704328ba5ae8d6ce0ac303c9d5a1a1605906766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] abcc5f2a39091abdebedfdfb484ea6be02138b9c516930e5491df92b250fe978
[INFO] running `Command { std: "docker" "start" "-a" "abcc5f2a39091abdebedfdfb484ea6be02138b9c516930e5491df92b250fe978", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stacked_gc-4197280b4c822813)
[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] [stderr]    Doc-tests stacked_gc
[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" "abcc5f2a39091abdebedfdfb484ea6be02138b9c516930e5491df92b250fe978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abcc5f2a39091abdebedfdfb484ea6be02138b9c516930e5491df92b250fe978", kill_on_drop: false }`
[INFO] [stdout] abcc5f2a39091abdebedfdfb484ea6be02138b9c516930e5491df92b250fe978