[INFO] cloning repository https://github.com/coatsd/rust_thread_playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coatsd/rust_thread_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoatsd%2Frust_thread_playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoatsd%2Frust_thread_playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbc35a877119458a59a98a0723bee07e07d10785
[INFO] testing coatsd/rust_thread_playground against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoatsd%2Frust_thread_playground" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/coatsd/rust_thread_playground on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/coatsd/rust_thread_playground
[INFO] finished tweaking git repo https://github.com/coatsd/rust_thread_playground
[INFO] tweaked toml for git repo https://github.com/coatsd/rust_thread_playground written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/coatsd/rust_thread_playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52a4b4a0d86d582d87cd94f4a25bfcb572510cd15542e81a0ac15848c9c4a9a0
[INFO] running `Command { std: "docker" "start" "-a" "52a4b4a0d86d582d87cd94f4a25bfcb572510cd15542e81a0ac15848c9c4a9a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52a4b4a0d86d582d87cd94f4a25bfcb572510cd15542e81a0ac15848c9c4a9a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a4b4a0d86d582d87cd94f4a25bfcb572510cd15542e81a0ac15848c9c4a9a0", kill_on_drop: false }`
[INFO] [stdout] 52a4b4a0d86d582d87cd94f4a25bfcb572510cd15542e81a0ac15848c9c4a9a0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3e0cb29d6d0878e3ba95caba5ec7b9d01a52df67e1023c55c4eaf1925080c24
[INFO] running `Command { std: "docker" "start" "-a" "d3e0cb29d6d0878e3ba95caba5ec7b9d01a52df67e1023c55c4eaf1925080c24", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling waitgroup v0.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling thread_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.07s
[INFO] running `Command { std: "docker" "inspect" "d3e0cb29d6d0878e3ba95caba5ec7b9d01a52df67e1023c55c4eaf1925080c24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e0cb29d6d0878e3ba95caba5ec7b9d01a52df67e1023c55c4eaf1925080c24", kill_on_drop: false }`
[INFO] [stdout] d3e0cb29d6d0878e3ba95caba5ec7b9d01a52df67e1023c55c4eaf1925080c24
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 921d74e47a5d6c4ae1887e7c0a8b91f2f9d69c168a9e939023e243204305ad4b
[INFO] running `Command { std: "docker" "start" "-a" "921d74e47a5d6c4ae1887e7c0a8b91f2f9d69c168a9e939023e243204305ad4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling thread_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "921d74e47a5d6c4ae1887e7c0a8b91f2f9d69c168a9e939023e243204305ad4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "921d74e47a5d6c4ae1887e7c0a8b91f2f9d69c168a9e939023e243204305ad4b", kill_on_drop: false }`
[INFO] [stdout] 921d74e47a5d6c4ae1887e7c0a8b91f2f9d69c168a9e939023e243204305ad4b
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3944dabec0057c90dd96d954c4ae002a18ad7429a8427389e9816e143684e768
[INFO] running `Command { std: "docker" "start" "-a" "3944dabec0057c90dd96d954c4ae002a18ad7429a8427389e9816e143684e768", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/thread_playground-a3cad0194e6dd25d)
[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" "3944dabec0057c90dd96d954c4ae002a18ad7429a8427389e9816e143684e768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3944dabec0057c90dd96d954c4ae002a18ad7429a8427389e9816e143684e768", kill_on_drop: false }`
[INFO] [stdout] 3944dabec0057c90dd96d954c4ae002a18ad7429a8427389e9816e143684e768